<p class="article__lead-paragraph">At Steerprop we have the privilege each summer to welcome a number of summer trainees to our company. These young, future professionals get an opportunity to use and develop the competences they have acquired during their studies through interesting and meaningful work that have a real impact on our customer projects. In return we gain valuable input and plenty of fresh ideas. It&rsquo;s a real win-win situation for us, for our trainees and for our customers!</p>

<p>Before our summer trainees returned to their studies in the fall, we met up to exchange a few words.</p>

<p class="Default">Tapio Tiihonen and Juho Salminen worked throughout the summer in the Product Management department. In this department, we manage product development and design, the mechanical design of delivery projects, R&amp;D projects and the sales support function.</p>

<p class="Default">Juho and Tapio both had their own mechanical design and development tasks that they worked independently on.</p>

<blockquote>
<p class="Default">&quot;I have learned a lot about mechanical design and 3D modeling, as well as about teamwork and communication in the workplace&quot;, Tapio says.</p>
</blockquote>

<p>Both Tapio and Juho study mechanical engineering at Aalto University in Espoo, and they were happy for the opportunity to gain practical experience in their field of study.</p>

<p>&quot;I have especially enjoyed the tasks involving hydraulic calculations and concept design, as I have great interest in fluid dynamics&quot;, Juho says. &quot;Doing flow calculations is both interesting and challenging and seeing how my calculations had actual impact on real-life product design was so cool&quot;, he explains.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><img alt="Juho Salminen worked as summer trainee at Steerprop" src="https://flockler.com/thumbs/sites/13425/juho_1-eb8a065d-764f-41a4-8925-4e3103d6005a_s600x0_q80_noupscale.jpg" /></div>

<figcaption><span class="article__figure__caption">Juho Salminen was happy to receive tasks that corresponded to his studies at our Product Management department. He was particularly excited to see how his calculations had an actual impact on real-life product design.</span></figcaption>
</figure>

<p>Many of Steerprop&rsquo;s summer trainees return to work for us the following year, and some may even stay on permanently after they have graduated. &quot;My co-workers have been superb and I have truly liked the work atmosphere at Steerprop. Who knows, I might return here someday&quot;, Juho says with a smile.</p>

<p>Tapio agrees, he felt very welcome in the Steerprop working community and found it easy to get to know the colleagues and to ask for advice whenever needed. &quot;I had a lot of questions, but the colleagues at Steerprop always supported me, providing help and advice&quot;, he says.</p>

<p>They both agree they had a memorable summer with us.</p>

<blockquote>
<p>&quot;I liked my job a lot; the versatility of the work and being able to make a difference with my design was very satisfying&quot;, Tapio tells us.</p>
</blockquote>


Each summer Steerprop welcomes a number of summer trainees and offers them an opportunity to develop their competences through interesting and meaningful tasks.

Steerprop offers valuable learning opportunities

At Steerprop we each summer welcome a number of summer trainees to our company and offer them an opportunity to use and develop their competences through interesting and meaningful tasks.

A summer internship at Steerprop offers valuable learning opportunities

<p class="article__lead-paragraph">The Bella Desgagn&eacute;s vessel is the lifeline for people living on the Lower North Shore in North-eastern Canada. A total breakdown is not an option and that is why the ship owner Groupe Desgagn&eacute;s opted for Steerprop Care Premium.</p>

<p>The Lower North Shore in North-eastern Canada has mesmerized people for thousands of years with its stunning scenery. Stretching from the Natashquan River to the border of Labrador, this area some 1600 km northeast of Montreal consists of islands, rocky cliffs, and sandy beaches.</p>

<p>The residents hail from Innu, Inuit, Qu&eacute;b&eacute;cois, Newfoundland and British descent, and the languages spoken today include Innu, French and English. The remote location has guaranteed a unique local culture visible in craft, language, and the way of living. About 5000 people live here in 15 villages, some hosting as few as 50 people. Some of the villages are not even accessible by road, leaving the villagers to rely solely on maritime transport for going to see relatives and friends, tending to doctor appointments, and getting necessities.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><img alt="The Bella Desgagnés is the lifeline of the Lower North Shore in Canada" src="https://flockler.com/thumbs/sites/13425/belladesgagnes_4-aa7942a8-e79c-43aa-a483-4460d4d57df1_s600x0_q80_noupscale.jpg" /></div>
</figure>

<h2 class="article__heading--h2">Serving commuters and tourists</h2>

<p>This is where the Bella Desgagn&eacute;s vessel, belonging to Groupe Desgagn&eacute;s, a Canadian shipping company, sails between April and February. (During a short period between February and April you can rely on ice roads).</p>

<p>With a capacity of 460 passengers (including the crew) and 125 TEU of cargo, the Bella Desgagn&eacute;s serves these remote villages with food and other necessities. It&#39;s also the only way for the locals to travel to other villages.</p>

<blockquote>
<p>&quot;The Bella Desgagn&eacute;s is the lifeline of the area&quot;, says <strong>Mario J. Rossi</strong>, Executive Vice President, Operations and Special Projects at Groupe Desgagn&eacute;s.</p>
</blockquote>

<p>The Bella Desgagn&eacute;s is with its 63 cabins also apt for tourists who come to this remote area to discover the stunning nature, where you can spot the occasional whale, seabirds and even icebergs floating from Greenland.</p>

<p class="article__paragraph">The crew operating the vessel need to pay attention not only to floating icebergs and whales, but also to manoeuvring the tricky waters. During the seven day circuit that begins in Rimouski on every Monday evenings, Bella Desgagn&eacute;s calls on 12 different harbours before reaching the final stop at Blanc-Sablon on Friday morning, having docked and undocked at Sept-&Icirc;les, Port-Menier on Anticosti Island, Havre-Saint-Pierre, Natashquan, Kegaska, La Romaine, Harrington Harbour, T&ecirc;te-&agrave;-la-Baleine, La Tabati&egrave;re and Saint-Augustin. After a short normal stop in Blanc-Sablon she travels all the way back again calling on the same ports.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><img alt="Steerprop has a bird's eye view on what is happening on the Bella Desgagnes" src="https://flockler.com/thumbs/sites/13425/belladesgagnes_1-4f77626f-d2c6-4861-805d-4f47e7a177fb_s600x0_q80_noupscale.jpg" /></div>
</figure>

<h2 class="article__heading--h2">It&#39;s a tight schedule, and any disturbances in it is a catastrophe.</h2>

<p>&quot;People need to be able to rely on the continuous service of the vessel. And for them to be able to rely on us, we need to be able to rely on the vessel. It&#39;s paramount that the vessel operates at all times&quot;, explains Rossi, adding that the ship owner Groupe Desgagn&eacute;s has a government contract to keep the service running.</p>

<p>Ideally, problems with the vessel and its propulsion are spotted and addressed before they occur because every repair risk taking can put the Bella Desgagn&eacute;s out of operation. Even if it&#39;s just for a few days it messes up with the tight timetable of going to 12 ports within a week, not to mention the costs involved.</p>

<p>&quot;If the vessel must be stopped, you have to reroute the passengers and deliver the cargo by other means. That comes with a lot of costs&quot;, says Rossi.</p>

<h2 class="article__heading--h2">Anticipating problems in advance</h2>

<p>Steerprop&#39;s service technicians have regularly flown from Finland to Canada to do check up on the propulsion. But what if the problems could be anticipated by AI and monitored remotely?</p>

<p>Steerprop has this service in its offering: of three levels of condition monitoring service available, the Care Premium is the most extensive one. It monitors the entire propulsion system 24/7 through an online connection. AI directs Steerprop engineers to focus on the right component at the right time.</p>

<blockquote>
<p>&quot;With the help of AI we analyse the information and results and give customers recommendations based on the findings&quot;, says <strong>Jarkko Sirrola</strong>, PdM Manager at Steerprop.</p>
</blockquote>

<p>&quot;We can follow everything remotely and then just hop on a plane if the situation calls for it&quot;, says Sirrola.</p>

<p>With Steerprop Care Premium we monitor and gather all relevant data from the propulsion system. Detailed information about the condition of the propulsor&rsquo;s components is constantly available. Immediate notifications are given on any anomalies detected and followed-up with recommendations of preventive measures. In this way, potential problems are identified before they escalate to failures, giving the ship operators time to make strategic maintenance decisions.</p>

<p>&quot;It becomes easier for the customer to predict operations, and we minimize the risk of a total breakdown that might take the vessel out of operation for weeks. Maintenance costs throughout the vessel&#39;s lifetime are also minimized as there is more predictability&quot;, explains Sirrola, adding that the Care Premium has gained a lot of popularity since it was introduced two years ago.</p>

<p>&quot;This 5-year contract with Groupe Desgagn&eacute;s is showing that customers really appreciate this service.&quot;</p>

<p>Mario Rossi agrees.</p>

<p>&quot;It&#39;s very helpful for us to have this system. Steerprop has a bird&#39;s eye view on what is happening on the vessel: if there is a deviation in oil or temperatures, any impurities etc...everything is seen right away by the Steerprop 24/7 system, and they can notify us immediately.&quot;</p>

<p>He also appreciates Steerprop&#39;s attitude.</p>

<blockquote>
<p>&quot;We have a very good relationship with Steerprop, we trust each other, and they are always very eager and willing to help.&quot;</p>
</blockquote>


The Bella Desgagnés vessel is the lifeline for people living on the Lower North Shore in Canada. The ship owner relies on Steerprop's Premium Care Service. 

Serving the Lower North Shore with 24/7 monitoring

The ship owner Groupe Desgagnés relies on Steerprop's Premium Care Service. With the help of AI and remote monitoring, the vessel crew can focus on predictive and preventive maintenance, instead of reactive and corrective measures.

Serving the Lower North Shore reliably with 24/7 monitoring

<p class="article__lead-paragraph">UZMAR Shipyards in Turkey is one of the world&rsquo;s top-notch tugboat builders with a very good reputation worldwide. The company has now chosen Steerprop to deliver six SP 20 WD azimuth propulsion units for a series of three Robert Allan Ltd. designed RAmparts 2300_UZM tugs being built.</p>

<p class="article__paragraph">The contract for the six SP 20 WD azimuth propulsion units, delivering 1,610 kW of power each, was signed in April 2021 and will be delivered in Q3 2021.</p>

<p class="article__paragraph">&ldquo;The Robert Allan designed RAmparts 2300_UZM tugs with 50+ ton of Bollard Pull are very efficient and agile tugs, providing a lot of performance in a compact package&rdquo;, says <strong>Donato Agostinelli</strong>, Sales Manager at Steerprop. &ldquo;Since the tugs will be operating in challenging conditions and performing very different tasks throughout their life, the propulsion units must be efficient and reliable under all circumstances. For these reasons, the units also come with our Condition Monitoring system as standard&rdquo;</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><a class="article__figure__link" data-type="image" href="https://flockler.com/thumbs/sites/13425/sp-20-d-0c8a547a-eac5-494a-beb9-f38398172897_s1800x0_q80_noupscale.jpg" target="_blank"><img alt="Steerprop delivers six SP 20 WD azimuth propulsion units" src="https://flockler.com/thumbs/sites/13425/sp-20-d-0c8a547a-eac5-494a-beb9-f38398172897_s600x0_q80_noupscale.jpg" /></a></div>
</figure>

<h2 class="article__heading--h2">Electrical steering</h2>

<p class="article__paragraph">To increase the achieved BP and to improve the maneuverability of the tugboat, the azimuth propulsors have an electrical steering that enables more efficient use of the main engine&rsquo;s power compared to hydraulic steering.</p>

<blockquote>
<p class="article__paragraph">&ldquo;The agile electrical steering system in our Z-drive azimuth propulsion increases overall performance and reduces the running costs of the vessels&rdquo;, says Agostinelli.</p>
</blockquote>

<p class="article__paragraph">&ldquo;The electrical system can also be upgraded with a battery pack to enhance performance even further, while at the same time lowering the environmental footprint of the system.&rdquo;</p>

<p class="article__paragraph">The propulsors&rsquo; robust and accurate electric steering gears also offer a constant steering speed, which is essential when performing sensitive tasks like escorting tankers.</p>

<p class="article__paragraph">&ldquo;Since the steering uses power only when actively turning, it is very energy-efficient&rdquo;, Agostinelli says. &ldquo;In addition, the electrical steering also produces significantly less noise than hydraulic steering systems and requires little service due to its mechanically simple construction.&rdquo;</p>

<h2 class="article__heading--h2">Re-entry in the segment</h2>

<p class="article__paragraph">The RAmparts tug classification is the most popular and widely used tug type in the world, thanks to its very flexible design that allows to accommodate different configurations and applications.</p>

<p class="article__paragraph">&ldquo;We identified a clear customer need and saw that we could make the necessary changes to our base design in the short time we had at hand&rdquo;, Agostinelli says. &ldquo;We think this is a great reference to make a re-entry in a segment that is not new to us, but in which we have not been present for a while.&rdquo;</p>


UZMAR Shipyards in Turkey has chosen Steerprop to deliver six SP 20 WD azimuth propulsion units for a series of three Robert Allan Ltd. designed RAmparts 2300_UZM tugs being built.

Steerprop to Deliver the Azimuth Propulsors to a Series Of RAmparts Tugboats

<p class="article__lead-paragraph">The Steerprop azimuth propulsors are designed and tailor-made to meet the most stringent of customer needs. How can a customer be assured that the overall quality and purchased equipment fulfil the contractual requirements? The answer is Steerprop&rsquo;s comprehensive and unique Factory Acceptance Test. &ldquo;Our value adding concept is that we test not only the propulsor, but we pre-assemble the propulsor and all components such as the control system, lubrication system, panels and displays before we test the whole package&rdquo;, says <strong>Esa Peltomaa</strong>, Electrical and Automation Manager at Steerprop.</p>

<p class="article__paragraph">Before any equipment or products leave the factory, they all go through the process of Factory Acceptance Tests (FAT). The purpose of a FAT is to verify for the customer and classification society, as well as the manufacturer, that the ordered equipment meets the contractual requirements and functions as expected.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><img alt="Steerprop Factory Acceptance Test" src="https://flockler.com/thumbs/sites/13425/fat_picture1-bc31eb4d-c86d-4237-8f0f-c4db5c063eec_s600x0_q80_noupscale.jpg" /></div>
</figure>

<h2 class="article__heading--h2">Reducing the number of installable components</h2>

<p>It is rather usual that solution providers in the propulsor industry deliver a large number of separate components, which then require extensive cabling and installation work on site. Furthermore, a complicated installation can have a negative impact on commissioning time. &ldquo;In our workshop we have a full torque test bench where we perform the factory acceptance testing of the complete solution, also when the propulsor control system is built into one pre-tested assembly that minimises the installation and commissioning work&rdquo;, says Mr Peltomaa.</p>

<blockquote>
<p>&ldquo;When the propulsor control system is built into one pre-tested assembly that minimises the installation and commissioning work.&rdquo;</p>
</blockquote>

<p>Steerprop&rsquo;s FAT-concept is a cost-effective solution for the customer and detects any functional issues before the propulsor and equipment arrive at the shipyard for installation. Fixing potential issues while the equipment is still at the factory has a positive impact on the timeline and budget, for example. &ldquo;When the propulsor and control system are pre-assembled and tested together at our factory, we can verify that everything works as a complete product before sending it to the shipyard. This ensures a simpler installation with fewer risks for errors&rdquo;, says Mr Peltomaa.</p>

<h2 class="article__heading--h2">Shortening the commissioning time</h2>

<p>The FAT test program is based on the agreement, technical specifications and other documents relating to the project characteristics.</p>

<p>A FAT brings several advantages for both parties. The manufacturer can guarantee that the equipment is operational and the customer can verify the equipment against the contract specifications. Other additional benefits include the possibility for customers to &ldquo;touch and feel&rdquo; the equipment in operational mode before delivery, and to have an opportunity to get some preliminary hands-on training.</p>

<blockquote>
<p>&ldquo;An advantage for the customer is that this procedure shortens the time needed for commissioning and minimises the risk for errors.&rdquo;</p>
</blockquote>

<p>Steerprop&rsquo;s FAT concept with everything in one &ldquo;package&rdquo; makes it easier to solve potential problems and fault situations instead of just having separate components interconnected. The cabling between the propulsor and the control system is done with ready-made and pre-tested plug cables. &ldquo;An advantage for the customer is that this procedure shortens the time needed for commissioning and minimises the risk for errors. A Steerprop commissioning takes 1-2 weeks plus sea trials. In addition to the test protocol and a number of classification certificates, our customers receive a product of enhanced quality as a result of our FAT concept&rdquo;, says Mr Peltomaa.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><a class="article__figure__link" data-type="image" href="https://flockler.com/thumbs/sites/13425/remote_fat1-1e7950f3-ee4d-48ac-ae4f-92e287b7d754_s1800x0_q80_noupscale.jpg" target="_blank"><img alt="Steerprop Factory Acceptance Test via remote connection." src="https://flockler.com/thumbs/sites/13425/remote_fat1-1e7950f3-ee4d-48ac-ae4f-92e287b7d754_s600x0_q80_noupscale.jpg" /></a></div>
</figure>

<h2 class="article__heading--h2">FAT from your office &ndash; Online</h2>

<p>All FAT inspections and testing are made at the manufacturer&rsquo;s test facilities in Finland. The global pandemic, though, made it difficult, not to say impossible, for customers to attend a FAT on location. Steerprop, however, found a solution to this challenge and successfully implemented a system through which customers can follow the FAT online via a remote connection.</p>

<p>&ldquo;The online FAT is an option we offer customers that prefer not to travel regardless of if there is a pandemic or not. The online FAT saves both time and money for customers as they do not have to travel to be on site. So far, the response has been positive and we expect this trend to continue. We are still in the quite early stages of this method and aim to improve it substantially, Mr Peltomaa concludes.</p>

<h2 class="article__heading--h2">Author</h2>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/esa_peltomaa_official-e5c0b877-5ade-4c1c-a068-a2d215f5ffc6_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<p><em><strong>Esa Peltomaa</strong> joined Steerprop in 2015. Today, as a Manager of Steerprop&rsquo;s Electrical and Automation department, he is heading the department&rsquo;s operations including design, testing, assembly as well as installations and commissioning. Esa&rsquo;s strengths lie in his customer centric approach, problem solving capabilities, his keen eye for detail and passion for delivering quality.</em></p>
</div>
</div>
</aside>

<p>&nbsp;</p>


In Steerprop's Factory Acceptance Test, we test not only the propulsor, but we pre-assemble the propulsor and all components before we test the whole package. 

Steerprop’s extensive FAT improves quality and shortens commissioning time

<p class="article__lead-paragraph">For platform supply vessels, reliability will take you a long way. Add reliable support, and you are all set. Steerprop offered both as Remontowa Shipbuilding set out to build Coey Viking and Cooper Viking for Viking Supply Ships.</p>

<p>Viking Supply Ships, based in Sweden, has been servicing the offshore industry since 1974 in Arctic waters for customers such as Shell, Statoil and Hydro.</p>

<blockquote>
<p>&quot;Our expertise is managing harsh environments that often entail ice in some form. In these conditions, reliability is key&quot;, explains <strong>Lars Holmberg</strong>, Technical Director at Viking Supply Ships.</p>
</blockquote>

<p>Today, the fleet comprises five vessels. The latest additions to the fleet are Coey Viking and Cooper Viking, delivered in December 2020 and April 2021 respectively. Although these vessels are not icebreakers as such, they need to manage in any conditions that may include ice.</p>

<p class="article__paragraph">Viking Supply Ships turned to Remontowa Shipbuilding, where <strong>Radoslaw Wolski</strong> was in charge of the project of building these ships. Solutions and equipment that are environmentally sound was a priority right from the start. Both Coey and Cooper can run on LNG, which substantially reduces CO2 emissions. Both vessels are also equipped with hybrid battery power supply systems, which further reduce emissions, and gives significant savings in fuel consumption as well.</p>

<h2 class="article__heading--h2">Reliable azimuth propulsion</h2>

<p>When the time came to order the propulsion system, Wolski turned to Steerprop, a company he knew very well from previous projects: Steerprop has also delivered propulsion to other Remontowa Shipbuilding projects such as platform supply vessels like Siem Tiima, Siem Pride and Siem Symphony.</p>

<p>For Coey Viking and Cooper Viking, Steerprop delivered two SP 35 CRP main propulsion&nbsp;units to both ships.</p>

<p>&ldquo;Steerprop&#39;s expertise in azimuth propulsion for ice going vessels is highlighted once again with these projects, where we can support Viking Supply Ships in their operations&rdquo;, says <strong>Juho Rekola, </strong>Director Sales &amp; Project Management.</p>

<p>Two benefits stand out with the CRP propulsion (Contra Rotating Propellers). As the supply vessels transits to platforms, the energy efficiency is extremely high. The other benefit is efficient ice management that&#39;s needed for instance in situations where the vessel must dock at a harbour with lots of ice rafts.</p>

<blockquote>
<p>&quot;We have been very happy with Steerprop&#39;s propulsion. The system is very user-friendly with the electronic control system where every propulsion parameter can be observed in real time&quot;, says Wolski.</p>
</blockquote>

<figure class="article__figure">
<div class="article__figure__placeholder"><a class="article__figure__link" data-type="image" href="https://flockler.com/thumbs/sites/13425/coey_sp35crp-5e1c43d8-8ae2-40cb-b68f-8de6a132c1fb_s1800x0_q80_noupscale.jpg" target="_blank"><img alt="SP 35 CRP Propulsion unit" src="https://flockler.com/thumbs/sites/13425/coey_sp35crp-5e1c43d8-8ae2-40cb-b68f-8de6a132c1fb_s600x0_q80_noupscale.jpg" /></a></div>

<figcaption><span class="article__figure__caption">SP 35 CRP Propulsion unit</span></figcaption>
</figure>

<h2 class="article__heading--h2">Reliability is key</h2>

<p>Building a vessel is a huge project, where excellent planning and reliable partners are needed to secure that both timelines and budgets are kept. The over 10 000 monitoring points in ship building projects this size requires meticulous project management.</p>

<p>&quot;There is a lot to manage and keep track of and one delay can impact everything else. To keep the schedule, it&#39;s very important to have reliable subcontractors who deliver the solutions exactly when we expect them&quot;, Wolski explains.</p>

<p>Reliable propulsion takes you a long way. However, support from the supplier is also important. Wolski appreciates the attitude of the Steerprop team in this respect.</p>

<blockquote>
<p>&quot;The technicians are both helpful and skilful, and they know their equipment through and through. It&#39;s a pleasure to work with them.&quot;</p>
</blockquote>

<p>Lars Holmberg at Viking Supplies Ships shares the same opinion.</p>

<p>&quot;Reliability is not just about the propulsion system working as it should. The attitude of the service organisation is just as important, and in this respect, I really appreciate Steerprop. The service guys are extremely solutions-oriented and smooth to work with.&quot;</p>

<p>The crews at Coey Viking and Cooper Viking seem to agree.</p>

<p>&quot;The crews tels me that the vessels have worked like a clock &quot;, says Lars Holmberg.</p>

<p>&nbsp;</p>

<h2>Quick Facts</h2>

<table border="0" cellpadding="3" cellspacing="1">
	<tbody>
		<tr>
			<td><strong>Vessel type:</strong></td>
			<td>Platform Supply Vessel</td>
		</tr>
		<tr>
			<td><strong>Classification:</strong></td>
			<td>DNV ICE-1C</td>
		</tr>
		<tr>
			<td><strong>Built by:</strong></td>
			<td>Remontowa Shipbuilding</td>
		</tr>
		<tr>
			<td><strong>Owner:</strong></td>
			<td>Viking Supply Ships</td>
		</tr>
		<tr>
			<td><strong>Main propulsion:</strong></td>
			<td>2 x SP 35 CRP</td>
		</tr>
		<tr>
			<td><strong>Power per unit:</strong></td>
			<td>2,200 kW</td>
		</tr>
	</tbody>
</table>

<p>&nbsp;</p>

<p><strong><a href="/solutions/azimuth-propulsion">More information about Steerprop CRP solutions.</a></strong></p>

<p>&nbsp;</p>


For platform supply vessels, reliability will take you a long way. Add reliable support, and you are all set. Steerprop offered both as Remontowa Shipbuilding set out to build Coey Viking and Cooper Viking for Viking Supply Ships. 

Coey Viking and Cooper Viking: reliable propulsion teamed with reliable support

<p><strong>Steerprop is proud to announce that we have donated, together with several other organizations in the Rauma region, a Professorship in Automation Technology to the University of Turku. The total value of the donation is 600,000 euros. </strong></p>

<p>The professorship is donated jointly by the City of Rauma, Alfa Laval Aalborg Oy, BMH Technology Oy, Deltamarin Oy, Forchem Oyj, Kongsberg Maritime Finland OY, L&auml;hiTapiola L&auml;nsi-Suomi, Motoseal Components Oy, Oras Oy, Pintos Oy, Rauma Marine Constructions Oy, Raumaster Oy, Steerprop Oy ja Teollisuuden Voima Oyj. The Rauma Chamber of Commerce and the City of Rauma have been responsible for coordinating the donation.</p>

<p>&quot;Rauma&#39;s diverse and developing industry, as well as the international operating environment, provide an excellent platform for interaction and cooperation with the University of Turku&#39;s master&rsquo;s degree education and the future professorship. The companies&rsquo; R&amp;D activities and the university&rsquo;s research work can be carried out in close cooperation and with considerable synergies. Cooperation between the companies and the engineering students also results in much-needed, additional opportunities for work and internships&quot;,&nbsp;says Johanna Luukkonen, Mayor of Rauma.</p>

<blockquote>
<p>Steerprop is growing, and we are constantly looking for the best experts to join our team. We are therefore excited to be part of the donation of this new professorhip in automation technology to the University of Turku. We believe it will considerably improve future availability of automation technology professionals ready to resolve our customers&rsquo; challenges and add value to their business, says RikuPekka H&auml;gg, CEO of Steerprop.</p>
</blockquote>

<p class="Default">&quot;From the very start, the companies in the region have been actively involved in developing our new engineering education programmes. The donation of the professorship is further proof of the local business community&rsquo;s commitment to long-term cooperation with the university. We warmly thank all the donors, says Jukka Kola&quot;, Rector of the University of Turku.</p>


Steerprop is proud to announce that we have donated, together with several other organizations in the Rauma region, a Professorship in Automation Technology to the University of Turku. The total value of the donation is 600,000 euros. 

Steerprop donates to a new Professorship in Automation Technology

<p>Reliable year-round marine transportation systems are crucial in modern societies, such as the countries along the<br />
Baltic Sea. To ensure that marine transportation systems are impacted as little as possible by the ice conditions around the coasts, the countries operate large fleets of icebreakers. The main task for icebreakers in the Baltic Sea is to secure an efficient and predictable marine transportation system in and out of harbors along the coasts.</p>

<p>Ship sizes and technical requirements have changed over the years, as have the ice conditions. This also guides us at Steerprop as we develop our propulsion solutions to be the best on the market.</p>

<p>Learn more about evolving icebreakers in the Marine Technology magazine article below.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><a class="article__figure__link" data-type="custom" href="https://marketing.steerprop.com/l/909162/2021-04-29/36wj/909162/1619695495zf7eyPvZ/MT_Jan2021_44_49.pdf" target="_blank"><img alt="Evolving Icebreakers article" src="https://flockler.com/thumbs/sites/13425/image-6795ccb9-01e2-4ebd-9ee7-ecd706b3a729_s600x0_q80_noupscale.jpg" /></a></div>

<figcaption><span class="article__figure__caption">Click to read the full article (pdf).</span></figcaption>
</figure>

<p>&nbsp;</p>


To ensure that marine transportation systems are impacted as little as possible by the ice conditions around the coasts, the countries along the Baltic Sea operate large fleets of icebreakers. The main task for icebreakers in the Baltic Sea is to secure an efficient and predictable marine transportation system in and out of harbors along the coasts.

Evolving Icebreakers

<p class="article__lead-paragraph">The Gal&aacute;pagos Islands is one of the world&rsquo;s most spectacular places. When Celebrity Cruises set out to build the first cruise ship specifically for cruising in the Gal&aacute;pagos Islands, they turned to Steerprop to get a propulsion system worthy of this magnificent place.</p>

<p class="MsoBodyTextCxSpFirst">The Gal&aacute;pagos Islands is the archipelago of volcanic islands in the Pacific Ocean about 900 km west of continental Equador, where Charles Darwin identified a large number of endemic species contributing to the theory of evolution. The islands have fascinated mankind ever since, and is annually visited by up to 300 000 scientists and tourists from around the world. Visiting the islands, being home to many plant and animal species found nowhere else, is a delicate affair where you have to take extra care not to disturb the sensitive wildlife, both on land and at sea.</p>

<p class="MsoBodyTextCxSpMiddle">Experiencing the islands from a cruise ship is popular, and Celebrity Cruises, the new luxury line within the Royal Caribbean Group, has brought tourists to the Gal&aacute;pagos Islands for more than 15 years. When Celebrity ordered Celebrity Flora, it was the first ship ever to be specifically designed to cruise in the Galapagos Islands. Intent on combining eco-tourism with luxury travel, the 100-passenger yacht, delivered in June 2019, features an innovative outward-facing concept designed to ensure that passengers can fully emerge in the unique scenery during the sailing. The propulsion system was also sought to be state-of-the art: navigating the rocky shores of the Gal&aacute;pagos requires swift maneuvering. You also want to avoid using an anchor to keep disturbances on the delicate ocean floor to a minimum. Silence is also a requirement, not necessarily so much for the guests&rsquo; comfort as that for the precious marine life&rsquo;s.</p>

<p class="MsoBodyTextCxSpLast">But regard for the safety of guests and the crew is naturally the number one priority for any ship owner or operator. Precise maneuvering and instant power is needed to avoid collisions or groundings.</p>

<blockquote>
<p class="MsoBodyText">&ldquo;Azimuth propulsion enables us to achieve the required degree of safety standards&rdquo;, says Vesa Uuttu, Director of Newbuild &amp; Innovation at Royal Caribbean Group and the Project Manager at the shipbuilder De Hoop.</p>
</blockquote>

<p class="MsoBodyTextCxSpFirst">Steerprop&rsquo;s delivery included two SP 20 CRP azimuthing propulsors with a maximum power of 1,250 kW along with Steerprop Care condition monitoring system.</p>

<p class="MsoBodyTextCxSpLast">&ldquo;Azimuth thrusters can be accelerated fast in any direction and you can use as much power as required. Each maneuver becomes smooth and efficient, which is important in the specific conditions surrounding the Gal&aacute;pagos area&rdquo;, says Vladimir Armas, Celebrity Flora&rsquo;s captain.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><a class="article__figure__link" data-type="image" href="https://flockler.com/thumbs/sites/13425/flora_staff3_crop-268ed292-271b-4a3a-ad77-8dce73340d72_s1800x0_q80_noupscale.jpg" target="_blank"><img alt="Vladimir Armas, the captain of Celebrity Flora" src="https://flockler.com/thumbs/sites/13425/flora_staff3_crop-268ed292-271b-4a3a-ad77-8dce73340d72_s600x0_q80_noupscale.jpg" /></a></div>

<figcaption><span class="article__figure__caption">&quot;The specific conditions surrounding the Gal&aacute;pagos area requires efficient maneuvering&quot;, says captain Vladimir Armas.</span></figcaption>
</figure>

<h2 class="article__heading--h2">Dynamic positioning</h2>

<p class="MsoBodyTextCxSpFirst">The Azimuthing propulsion enables dynamic positioning, that is, computer-controlled systems that automatically maintain a vessel&rsquo;s position using its own propellers and thrusters. No need for anchoring, which is important in the sensitive ocean floor around the Gal&aacute;pagos islands.</p>

<p class="MsoBodyTextCxSpMiddle">&ldquo;The azimuth thruster enables a very precise control of the electric motors. My experience with Steerprop&rsquo;s azimuth propulsion is that it&rsquo;s completely different compared to a classic propulsion system. The ship becomes easier to maneuver and allows you to do more precise approaches. It totally enhances the sailing experience&rdquo;, says Armas.</p>

<p class="MsoBodyTextCxSpMiddle">The propulsion power is divided between the two propellers and hence the load on each blade and the speed of rotation is more efficient compared to the blades of a propulsion unit fitted with a single pulling propeller. The propulsion system can be monitored in real-time throughout sailing.</p>

<blockquote>
<p class="MsoBodyTextCxSpMiddle">&ldquo;We monitor the propulsion system in terms of efficiency, power consumption and working load. Monitoring the propulsion becomes easier with all sensors connected to user-friendly displays. All you need to do is to take a quick look and continue with safe navigation&rdquo;, says second officer<strong> </strong>Luis Valencia.<strong> </strong></p>
</blockquote>

<p class="MsoBodyTextCxSpLast">From the cruise operator&rsquo;s perspective &ndash; in this case Celebrity Cruises - another advantage of the Steerprop propulsion system is that the use of space is more efficient. All the services required for the propulsor during operation are located within the propulsion room.</p>

<h2 class="article__heading--h2">Condition monitoring included</h2>

<p class="MsoBodyTextCxSpFirst">Steerprop Care condition monitoring system was also included in the delivery. The online monitoring comes with a lot of benefits.</p>

<p class="MsoBodyTextCxSpLast">&ldquo;We can maintain updated information on the status of the oil which helps us anticipate and correct any situation that might arise in time. If there is something off with the oil condition of the operation of the Steerprop Azimuts, we do not have to wait for a laboratory result along with an unexpected service maintenance&rdquo;, says Chief Engineer Evangelos Miskedakis.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><a class="article__figure__link" data-type="image" href="https://flockler.com/thumbs/sites/13425/flora_staff1_crop-8b745598-45bd-41e7-bef8-ca932b45b5b2_s1800x0_q80_noupscale.jpg" target="_blank"><img alt="Evangelos Miskedakis, the Chief Engineer of Celebrity Flora" src="https://flockler.com/thumbs/sites/13425/flora_staff1_crop-8b745598-45bd-41e7-bef8-ca932b45b5b2_s600x0_q80_noupscale.jpg" /></a></div>

<figcaption><span class="article__figure__caption">Chief Engineer Evangelos Miskedakis is able to monitor the propulsion system in real time.</span></figcaption>
</figure>

<p class="MsoBodyTextCxSpFirst">Steerprop supplies the crew with a monthly report on the condition of the propulsors and the Controls Systems advanced connectivity allows Steerprop&#39;s technicians to assist the crew remotely without the need to travel onboard, thus saving time and money.</p>

<p class="MsoBodyTextCxSpMiddle">Vesa Uuttu from the Royal Caribbean Group has been pleased with the collaboration with Steerprop.</p>

<blockquote>
<p class="MsoBodyTextCxSpMiddle">&ldquo;I am very happy with the end result and grateful for the support we have received from Steerprop. Our second guest experience report gave full 100 points, which indicates that the guests are comfortable onboard.&rdquo;</p>
</blockquote>

<p class="MsoBodyTextCxSpLast">How is that for smooth sailing?</p>

<h2 class="article__heading--h2">Quick Facts</h2>

<table border="0" cellpadding="3" cellspacing="1">
	<tbody>
		<tr>
			<td><strong>Vessel type:</strong></td>
			<td>Expedition Mega Yacht</td>
		</tr>
		<tr>
			<td><strong>Classification:</strong></td>
			<td>
			<p paraeid="{502831ee-bc8e-4f48-9f13-ef4a47ce880e}{157}" paraid="716232307">LR 100A1</p>
			</td>
		</tr>
		<tr>
			<td><strong>Built by:</strong></td>
			<td>Shipyard De Hoop</td>
		</tr>
		<tr>
			<td><strong>Owner:</strong></td>
			<td>Celebrity Cruises</td>
		</tr>
		<tr>
			<td><strong>Main propulsion:</strong></td>
			<td>2 x SP 20 CRP</td>
		</tr>
		<tr>
			<td><strong>Power per unit:</strong></td>
			<td>1,250 kW</td>
		</tr>
	</tbody>
</table>

<p>&nbsp;</p>

<p><strong>Watch a video about the Celebrity Flora on <a href="https://www.youtube.com/watch?v=Jj9CXshqPyo" target="_blank">Celebrity Cruises&nbsp;YouTube channel</a>.</strong></p>

<p><strong><a href="/solutions/azimuth-propulsion">More information about Steerprop CRP solutions.</a></strong></p>


The Galápagos Islands is one of the world’s most spectacular places. When Celebrity Cruises set out to build the first cruise ship specifically for cruising in the Galápagos Islands, they turned to Steerprop to get a propulsion system worthy of this magnificent place.

Steady maneuvering in rocky waters with Azimuth propulsion

<p class="article__lead-paragraph">The goal for any shipowner or fleet manager is to keep vessels running as efficiently as possible. But if interruptions and problems do occur, it is vital there is a service partner on hand to fix the problem day or night. Steerprop offers customers fast and professional services that can include tailor-made solutions when required. &ldquo;We offer world-class services to back up our robust azimuth propulsors and take pride in ensuring rapid response times&rdquo;, says Mr Kai Arvela, Director, Service and Procurement at Steerprop.</p>

<p>Steerprop designs and manufactures azimuth propulsors with reliability and easy maintenance in mind. This is backed up with our world-class services, which are available globally through an extensive network of international partners. We really ensure that our customers get the necessary attention they require after the sales process.</p>

<blockquote>
<p><em>We are a true partner that quickly helps our customers.</em></p>
</blockquote>

<p>Every propulsor is tested at Steerprop&rsquo;s factory as an entire unit before delivery to the customer. Our propulsor units will provide safe and efficient operation for many years ahead with proper maintenance and correct operational procedures. &ldquo;We also provide on-request training for the customer&rsquo;s staff to enable them to acquire the maintenance and operational knowledge they need&rdquo;, says Mr Arvela.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><a class="article__figure__link" data-type="image" href="https://flockler.com/thumbs/sites/13425/services_engineer1-26f8a515-257d-4c6d-a62e-ed53a3f04770_s1800x0_q80_noupscale.jpg" target="_blank"><img alt="Steerprop Services" src="https://flockler.com/thumbs/sites/13425/services_engineer1-26f8a515-257d-4c6d-a62e-ed53a3f04770_s600x0_q80_noupscale.jpg" /></a></div>
</figure>

<h2 class="article__heading--h2">Services - when and where you need them</h2>

<p>Steerprop provides Original Spare Parts to all their systems and units when needed. The propulsors also require service at set intervals.</p>

<p>The standard service intervals are every 5-years, aligning well with the classification societies&rsquo; requirements for inspections every 5-years during a docking. Full overhauls are performed every 15 years or 100,000 hours, based on unit load. &ldquo;General service actions mainly concern the overhaul of rotating seals during drydock. The full overhaul at 15 years also includes the transmission line bearings&rdquo;, says Mr Samuli J&auml;rvinen, Service Manager at Steerprop.</p>

<h2 class="article__heading--h2">Condition monitoring for enhanced predictability</h2>

<p>Steerprop allows shipowners to take a proactive approach and avoid potentially costly breakdowns. By taking such an approach, the need for a full overhaul may be extended based on the condition of the transmission line components. &ldquo;Steerprop Care, our condition monitoring system, has been included as a fully integrated part of every propulsor delivery since August 2019. The system allows crew members to follow machinery trends and detect deviations that could affect the propulsion system in the future. This offers the highest possible reliability based on enhanced predictability&rdquo;, explains Mr Arvela.</p>

<p>Steerprop&rsquo;s ability to utilise Steerprop Care condition monitoring to provide in-depth professional analysis on the data created is a clear value-adding enhancement. This feature can also be integrated as a retrofit in older units.</p>

<p>Steerprop Care is available on three levels. In the basic Standalone Level, which is included in every delivery, the condition monitoring feature is available for customers to utilise in their operations. &ldquo;This is designed for propulsion monitoring and gives the onboard crew information about alarms, trends, time waveforms and spectrums. If there is a deviation, the crew can ask us to help them with cause analysis&rdquo;, says Mr Jarkko Sirrola, PDM Manager at Steerprop.</p>

<p>Steerprop&rsquo;s assistance and valuable analysis results are available through different types of agreements. The next level is Care Plus, which, in addition to basic condition monitoring, transfers data to Steerprop&rsquo;s experts, who follow the trends and deliver reports to the crew at agreed intervals. &ldquo;Care Plus monitors the entire propulsion system, including vibration, along with signals and alarms from the control system using advanced techniques based on AI and machine learning. By analysing the data, we can notify a crew well ahead of any development that may cause future disturbances&rdquo;, says Mr Sirrola.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><a class="article__figure__link" data-type="image" href="https://flockler.com/thumbs/sites/13425/sp_care1_web-c5b66633-2f2a-4bed-9706-4e230f7dd86f_s1800x0_q80_noupscale.jpg" target="_blank"><img alt="Steerprop Care" src="https://flockler.com/thumbs/sites/13425/sp_care1_web-c5b66633-2f2a-4bed-9706-4e230f7dd86f_s600x0_q80_noupscale.jpg" /></a></div>
</figure>

<h2 class="article__heading--h2">Care Premium, the top-level agreement</h2>

<p>The top-level agreement, Care Premium, has quickly gained popularity among our customers in less than two years. &ldquo;The remote online connection, which is also available as a retrofit installation, means that the experts in our monitoring centre receive all the data from the propulsor for analysis. In addition to basic monitoring, Care Premium includes additional vibration measurement points monitoring the main electric motor and the lubrication oil&rdquo;, says Mr Sirrola.</p>

<blockquote>
<p><em>We leave no stone unturned in our search for the cause and the right solution.</em></p>
</blockquote>

<p>According to Mr Sirrola, the oil monitoring system monitors particle levels, water contamination and oil quality. &ldquo;The main benefit of online oil monitoring is that the customer can prevent faults from emerging and correct a situation ahead of time by ensuring a good lubrication condition throughout the entire lifecycle of the propulsion unit.&rdquo;</p>

<p>&ldquo;We can also help the busy Fleet Manager, who finds it tedious to check on the status of several vessels. The subscription service called Fleet Overview provides a real-time dashboard of the condition of an entire fleet&rsquo;s propulsion systems at a glance. It is browser-based, so all you need is an internet connection. This is super handy for any fleet manager with several vessels to manage&rdquo;, concludes Mr Kai Arvela.</p>

<blockquote>
<p><em><a href="/contact-us/contact-services">Contact us</a> to find out how Steerprop Services can enchance your operations.&nbsp;</em></p>
</blockquote>


Steerprop designs and manufactures azimuth propulsors with reliability and easy maintenance in mind. This is backed up with our world-class services, which are available globally through an extensive network of international partners. 

Steerprop Services: Supporting customers by maximising the uptime of propulsion assets

<p class="article__lead-paragraph">Since 2000, we at Steerprop have added value to our customers&rsquo; operations and contributed to their success through our unwavering resolve to perform. Below, please find few carefully selected references. Full reference listing is available on request.</p>

<h2 class="article__heading--h2">Arctic</h2>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/baltika-bf7ed06c-40bf-40d2-8e33-617e58d94444_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">BALTIKA &ndash; Oblique icebreaker</h3>

<p class="article__paragraph"><strong>Classification:</strong> RMRS Icebreaker 6<br />
<strong>Power per unit:</strong> 2,500 kW<br />
<strong>Built by:</strong> Arctech Helsinki Shipyard Oy<br />
<strong>Shipyard: </strong>Yantar JSC<br />
<strong>Main propulsion: </strong>3 x SP 60 PULL</p>

<p class="article__paragraph"><strong><a href="/stories/baltika">Read the full story</a></strong><br />
<strong><a href="https://www.youtube.com/watch?v=zwe0MHRaqhA">Watch a video on Youtube</a></strong></p>
</div>
</div>
</aside>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/varandey-b49d60bc-8a6c-46c1-8847-c7a3c36f1e5f_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">VARANDEY &ndash; Multi-purpose icebreaker</h3>

<p><strong>Classification: </strong>RMRS LL7<br />
<strong>Power per unit:</strong> 8,400 kW<br />
<strong>Built by: </strong>Keppel Singmarine<br />
<strong>Owner: </strong>Lukoil Kaliningrad<br />
<strong>Main propulsion: </strong>2 x SP O 4.5 ARC</p>
</div>
</div>
</aside>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/toboy-26adf0fc-9fd3-4cf3-9ed5-7f8342220980_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">TOBOY &ndash; Ice-breaking supply vessel</h3>

<p class="article__paragraph"><strong>Classification:</strong> RMRS LU7<br />
<strong>Power per unit: </strong>5,200 kW<br />
<strong>Built by:</strong> Keppel Singmarine<br />
<strong>Owner: </strong>Lukoil Kaliningrad<br />
<strong>Main propulsion: </strong>2 x SP O 4.0 ARC</p>
</div>
</div>
</aside>

<h2 class="article__heading--h2">Offshore&nbsp;</h2>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/seven_viking-cf6da52b-f1ef-4af7-aff2-862e9e226054_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">SEVEN VIKING &ndash; IMR vessel</h3>

<p class="article__paragraph"><strong>Classification: </strong>DNV 1A1<br />
<strong>Power per unit:</strong> 3,000 kW<br />
<strong>Built by:</strong> Ulstein Verft AS<br />
<strong>Owner:</strong> Subsea 7 and Eidesvik AS<br />
<strong>Main propulsion:</strong> 3 x SP 35 CRP</p>

<p class="article__paragraph"><strong><a href="/stories/the-seven-viking">Read the full story</a> </strong></p>
</div>
</div>
</aside>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/edda_fonn-304d80d7-069a-441f-95cd-817a41a47b15_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">EDDA FONN &ndash; ROV survey vessel</h3>

<p><strong>Classification:</strong> DNV ICE-C<br />
<strong>Power per unit:</strong> 2,200 kW<br />
<strong>Built by: </strong>Myklebust Verft AS<br />
<strong>Owner: </strong>New Zealand<br />
<strong>Main propulsion:</strong> 2 x SP 35 CRP</p>
</div>
</div>
</aside>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/bourbon_liberty-4c111c87-9ac5-4424-9586-2994e1612995_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">Bourbon Liberty 100 Series</h3>

<p><strong>Classification: </strong>ABS<br />
<strong>Power per unit: </strong>843 kW<br />
<strong>Built by:</strong> Sinopacific Shipbuilding Group<br />
<strong>Owner:</strong> Bourbon Offshore<br />
<strong>Main propulsion:</strong> 3 x SP 10 D L</p>

<p>Bourbon Liberty 100 series includes over 50 vessels with SP 10 D L propulsors as main propulsion.</p>
</div>
</div>
</aside>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/bourbon_liberty_200-185d4234-659d-4b82-8689-b489afb3d8d8_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">Bourbon Liberty 200 Series</h3>

<p><strong>Classification:</strong> ABS<br />
<strong>Power per unit: </strong>1,685 kW<br />
<strong>Built by: </strong>Sinopacific Shipbuilding Group<br />
<strong>Owner: </strong>Bourbon Offshore<br />
<strong>Main propulsion:</strong> 3 x SP 20 D</p>

<p>Bourbon Liberty 200 series includes over 115 vessels with SP 20 D propulsors as main propulsion.</p>
</div>
</div>
</aside>

<h2 class="article__heading--h2">Cruise &amp; Ferry</h2>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/flora2-4de876e9-b504-4374-a3de-c5d92948bd5c_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">CELEBRITY FLORA - Expedition Mega Yacht</h3>

<p><strong>Classification:</strong> LR 100A1<br />
<strong>Power per unit: </strong>1,250 kW<br />
<strong>Built by:</strong> Shipyard De Hoop<br />
<strong>Owner: </strong>Celebrity Cruises<br />
<strong>Main propulsion:</strong> 2&nbsp;x SP 20 CRP</p>
</div>
</div>
</aside>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/gauthier-b157e896-2026-43f1-9647-deb43228c9ed_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">F. A. GAUTHIER &ndash; Passenger vessel</h3>

<p class="article__paragraph"><strong>Classification:</strong> LRS 1AS<br />
<strong>Power per unit: </strong>7,000 kW<br />
<strong>Built by:</strong> Fincantieri Group<br />
<strong>Main propulsion:</strong> 2 x SP 120 CRP ECO</p>

<p class="article__paragraph"><strong><a href="https://www.youtube.com/watch?v=ZEup0I1oOS8">Watch a video on Youtube</a></strong></p>
</div>
</div>
</aside>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/piret-37b61e92-9b54-4437-9658-a446ddefa64e_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">PIRET &ndash; Double-ended ferry</h3>

<p><strong>Classification: </strong>DNV ICE-1A<br />
<strong>Power per unit: </strong>2,150 kW<br />
<strong>Built by: </strong>Remontowa Shipbuilding S.A.<br />
<strong>Owner: </strong>Port of Tallinn<br />
<strong>Main propulsion:</strong> 2 x SP 45 CRP</p>
</div>
</div>
</aside>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/bella_desgagnes-a6938ef3-4dc4-4499-963a-e72776d24fed_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">BELLA DESGAGNES &ndash; Passenger vessel</h3>

<p><strong>Classification:</strong> LR 1A FS<br />
<strong>Power per unit:</strong> 2,200 kW<br />
<strong>Built by: </strong>Kraljevica Shipyard<br />
<strong>Owner: </strong>Transport Desgagnes<br />
<strong>Main propulsion: </strong>2 x SP 45</p>
</div>
</div>
</aside>

<p>&nbsp;</p>

<h2 class="article__heading--h2">&nbsp;Workboats&nbsp;</h2>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/red_fox-5c7add62-92ba-4f17-91da-e79b516470bd_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<h3 class="article__heading--h3">RED FOX (former Romulo) &ndash; Escort tug</h3>

<p><strong>Classification:</strong> GL 100A5<br />
<strong>Power per unit: </strong>2,380 kW<br />
<strong>Built by: </strong>Astilleros Balenciaga S.A.<br />
<strong>Owner: </strong>Remolcadores de Puerto y Altura, S.A.<br />
<strong>Main propulsion:</strong> 2 x SP 35 D</p>
</div>
</div>
</aside>

<p>&nbsp;</p>

<p>&nbsp;</p>


You can find Steerprop propulsion solutions in the most demanding conditions of the planet. See for yourself.

Steerprop References

<p class="article__lead-paragraph">Shipowners and operators are fully aware that minimising operational risks at sea is vital to maintaining profitability. And part of that process is ensuring that critical spare parts are quickly available. Having an old control system may result in the unavailability of obsolete components and parts. To prevent this, Steerprop has upgraded its propulsion control system to provide superior operability for all its customers. &quot;During the next generation development process, we added many new features to simplify the control system while still maintaining the existing systems&quot;, says Juho Rekola, Director, Sales &amp; Project Management at Steerprop Ltd.</p>

<p>Since July 2020, every new Steerprop propulsor delivery comes with the new Steerprop Control System. With the upgraded system, Steerprop&rsquo;s customers can enjoy a product of superior quality, reliability, serviceability, user-friendliness, and flexibility. And the best of all: &quot;The new system can also be installed for older units as a retrofit for any existing Steerprop propulsor. Thanks to our skilled engineers and the flexibility of the control system, we can even integrate the system with other propulsor makes&quot;, explains Mr Rekola.</p>

<h2 class="article__heading--h2">Tailormade all the way</h2>

<p>The older a control system gets, the higher the risk of problems due to obsolete parts. This was also the reality for Steerprop&rsquo;s customers. Therefore, the company wanted to develop a new control system that would eliminate this risk for existing vessels. The result is a system that can be tailored to fit and integrate with current onboard equipment. Steerprop can now ensure the longest possible availability of spare parts for the upgraded control system.</p>

<blockquote>
<p><em>The new system can also be installed for older units as a retrofit project.</em></p>
</blockquote>

<p>The Steerprop Control System is the best option for shipowners wanting superior operational reliability and high quality, which is ensured by control levers with full redundancy, enabling a complete follow-up backup control. &quot;All levers are NAUT OSV compliant and feature non-wearable, maintenance-free sensors for azimuth operation and speed&quot;, says Mr Rekola.</p>

<p>The entire control system, including controllers, cabinets and control panels, is tested together with the propulsor. This is part of Steerprop&rsquo;s rigorous quality assurance. Steerprop&rsquo;s skilled personnel will work closely with you to ensure the best support and results throughout the entire installation process, including adaptation to existing onboard systems. &quot;We will also take care of the start-up, onboard testing and commissioning to minimise the entire retrofit process.&quot;</p>

<h2 class="article__heading--h2">We&rsquo;re with you 24/7</h2>

<p>This next-generation control system is built with modern and proven PLC control technology. The comprehensive backup system has robust features for maximum redundancy and an off-line monitoring mode to increase availability. The upgraded system also allows the customer to have remote service support via the Steerprop remote service module. &quot;This is a modern solution that allows Steerprop&rsquo;s service engineers to do fault tracing remotely and assist the onboard crew without visiting the vessel&quot;, says Mr Rekola.</p>

<p>Every new propulsor comes with the standard Steerprop Care condition monitoring system. The system allows crewmembers to follow up on machinery trends and detect any deviation in advance. &quot;This is a feature that can be easily upgraded to online monitoring for the highest possible reliability and safety, so you are never left alone&quot;, ensures Mr Rekola.</p>

<p>Steerprop&rsquo;s advanced control system is available for newbuilds or as retrofits, regardless of the propulsor make or existing systems. Manoeuvring with this system gives you a first-class steering experience that can be further enhanced with personalised control profiles according to preferences. The Steerprop Control System is a perfect fit for those who want to be in control.</p>

<h2 class="article__heading--h2">Author</h2>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/210126-1-373-9acbf1b3-f066-4f16-ac78-c9788b4bcdc9_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<p><em><strong>Juho Rekola,&nbsp;</strong>Director Sales and Project Managemen</em>t<em> at Steerprop, has been involved</em> <em>in customer projects and R&amp;D</em><em> in the international maritime industry from the beginning of his career. </em></p>

<p><em>Rekola joined Steerprop in 2017 and is now responsible for sales and project management operations. He is committed to offer our clients the best solution in the market with the excellent customer experice. </em></p>
</div>
</div>
</aside>

<p>&nbsp;</p>


Shipowners and operators are fully aware that minimising operational risks at sea is vital to maintaining profitability. And part of that process is ensuring that critical spare parts are quickly available. The older a control system gets, the higher the risk of problems due to obsolete parts. Therefore, the company wanted to develop a new control system that would eliminate this risk for existing vessels. 

control-retrofit

Retrofit installation of the improved Steerprop Control System puts you back in control

<p class="article__lead-paragraph">Contra-rotating propellers (CRP) in a push-pull configuration take icebreaking capability, manoeuvrability and performance to an entirely new level. The harsh conditions of ice-covered waters demand reliable propulsors that can provide your vessel with that extra thrust when the going gets tough. &ldquo;In addition to higher free running efficiency, Steerprop&rsquo;s Arctic azimuth propulsors with contra-rotating propellers also offer higher thrust in bollard and icebreaking conditions&rdquo;, says Hannu Jukola, Senior Sales Manager at Steerprop Ltd.</p>

<h2 class="article__heading--h2">Contra-rotating propellers provide superior efficiency and fuel economy</h2>

<p>Managing a vessel through thick ice can be a challenging task even for a skilled captain. Any misjudgement or lack of propulsion power can cause a ship to become stuck, which might result in serious damage to the vessel. Ice class requirements often force shipowners to make a compromise between bollard pull/icebreaking thrust and free running efficiency.</p>

<p>The propulsive performance of an ice-class propeller is inferior to that of a non-ice class propeller. This is because an ice-class propeller requires high propeller loading, which is enabled by large blade areas and high hub ratios. On the other hand, nozzled propeller configurations, which are required for high bollard pulls, present challenges with ice-clogging. &ldquo;Shipowners do not need to make these compromises anymore. Our CRP solutions provide superior performance, thus eliminating these challenges&rdquo;, says Mr Jukola.</p>

<h2 class="article__heading--h2">Proven technology with valuable customer benefits</h2>

<p>Azimuth propulsors are the tool of choice for ice management operations. In fact, they have now become the industry standard for ice-going vessels. One of the reasons for this, is their ability to direct the vectored thrust from the propeller (slipstream) in a full 360 degrees, which allows the vessel to use the thrust itself not only to open and widen fairways, but also to blow ice ridges and free Arctic offshore installations from ice pressure.</p>

<p>Steerprop&rsquo;s continuous commitment to R&amp;D has led, among other things, to the contra-rotating propulsor. However, being simply good enough is not enough for this company. That is why Steerprop conducted a series of ice model tests at Aker Arctic Technology&rsquo;s ice laboratory. The ice basin tests were compared against traditional single-propeller propulsors that are currently used in ice-going applications. &ldquo;The results revealed several benefits that CRP propulsors offer. In particular, the slipstream of the CRP propellers provided entirely new opportunities in ice-management operations&rdquo;, says Mr Jukola.</p>

<blockquote>
<p>The unique propeller slipstream from CRP has proven to be highly effective when clearing ice formations and widening fairways.</p>
</blockquote>

<figure class="article__figure">
<div class="article__figure__placeholder"><a data-type="image" href="https://flockler.com/thumbs/sites/13425/sp90crpeco_lm_8_web-17f63825-4b41-4e43-bca7-e93712cee5ac_s1800x0_q80_noupscale.jpg" target="_blank"><img alt="SP 90 CRP ECO LM" src="https://flockler.com/thumbs/sites/13425/sp90crpeco_lm_8_web-17f63825-4b41-4e43-bca7-e93712cee5ac_s600x0_q80_noupscale.jpg" /></a></div>
</figure>

<h2 class="article__heading--h2">Net thrust 10-17% higher than single pulling propellers</h2>

<p>In a CRP unit, the power is split between two contra-rotating propellers. This means a much lower propeller loading, with the second propeller recovering the rotational energy from the forward propeller. Therefore, the propellers are much more efficient without the constraints caused by the high loading of a single propeller. Steerprop&rsquo;s Arctic azimuthing propulsors achieve this through lower blade area ratios, more favourable pitch and RPM settings, as well as a reduction of rotational losses that are not possible with single propellers.</p>

<p>&ldquo;We found that in bollard configurations, CRP provides about a 10% higher thrust with the same power, or the same thrust using 15% lower power when compared to a single propeller of the same diameter. The free-running efficiency is 5-10% better depending on the vessel speed. Test results show that the CRP can bring benefits to several different applications &ndash; ranging from dedicated ice management vessels and Arctic cargo ships to tankers and ice-going offshore support vessels. The net thrust of the CRP was 10-17% higher than a single pulling propeller with the same power&rdquo;, says Hannu Jukola, adding that &ldquo;Ridge penetration times were also significantly reduced because of the unique effectiveness of the slipstream from the CRP-propellers.&rdquo;</p>

<p>Mr Jukola mentions LNG carriers (Liquefied Natural Gas) as an example of an application type that could benefit from Steerprop&rsquo;s CRP solution. &ldquo;The ice resistance was reduced by approximately 10% in level ice, and the speed in brash ice was increased by 50%. Even the ridge penetration time was reduced by about 50%.&rdquo;</p>

<h2 class="article__heading--h2">A reliable partner to support you all the way</h2>

<p>Steerprop has a strong track record, having delivered more than 90 units for ice-classed vessels, including icebreakers. Among these deliveries we include the world&rsquo;s most powerful and highest ice-class mechanical azimuth propulsors. These two SP 110 PULL ARC units with total power of 18 000 kW were installed on the icebreaker Vladivostok in 2014.</p>

<p>&ldquo;We want our solutions to resolve our customers&rsquo; challenges in such a way that they add critical value to their businesses. The best result is achieved when we can support and advise our customers already from the ship design phase. Our support ranges from needs analysis and proposing the best solution to maintenance and service throughout the lifecycle of the solution&rdquo;, says Mr Jukola.</p>

<h2 class="article__heading--h2">Author</h2>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/210126-1-222-8cab50a1-a03a-4108-883c-479081b25f70_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<p><em><strong>Hannu Jukola</strong>, Senior Sales Manager at Steerprop, graduated as a Naval Architect with a specialization in hydrodynamics, from the Helsinki University of Technology in 1990.</em></p>

<p><em>Hannu joined Steerprop in the year 2000. His responsibilities at Steerprop Ltd. have included hydrodynamics and propeller design, sales in Nordic countries as well as managing R&amp;D programs related to development of high power CRP propulsors for passenger and ice going vessels.</em></p>
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<p>&nbsp;</p>


The harsh conditions of ice-covered waters demand reliable propulsors that can provide your vessel with that extra thrust when the going gets tough. 

Ice-going vessels put their trust in CRP thrust

<p class="article__lead-paragraph" paraeid="{5a160690-e752-4325-94d2-d96c10af27a9}{244}" paraid="1142537577"><em>We at Steerprop come from a culture of curiosity for our customers&rsquo; business and of applying our enthusiasm, experience and innovation to improve it. Our culture is built on working for a purpose, on designing and delivering solutions that have a real impact and make a real difference. This resolve to perform&nbsp;has always guided the ingenious minds of the Steerprop R&amp;D department.</em></p>

<p paraeid="{2762ac1f-02ff-4c77-b509-7f9e771c795d}{47}" paraid="121277023">We provide our customers with superior propulsion units with outstanding efficiency, exceptional reliability and the lowest lifecycle costs on the market. Our gear design specialists, technical analysts and hydrodynamists are all working hard toward this end.</p>

<blockquote>
<p paraeid="{2762ac1f-02ff-4c77-b509-7f9e771c795d}{73}" paraid="713311675">With our high-quality propeller designs we improve propulsion efficiency, we also constantly work on lowering mechanical losses and optimizing the shapes of underwater parts. The equation is easy - more efficient propulsion units means lower fuel consumption and better returns for our customers!</p>
</blockquote>

<p>The reliability of our propulsion units is essential. They are used on vessels involved in very critical operations, such as ice management, on icebreakers, oil platforms, wind farm maintenance vessels and cruise vessels, where any interruption can cause huge losses. To maximize the reliability of the propulsion units, our technical department needs to consider the challenging conditions in both open and icy waters in their calculations. For example, different kinds of load cases need to be considered and propulsor tooth contact patterns need to be designed to be ideal for every specific condition and situation.</p>

<p>To ensure lowest lifecycle costs, we have developed Steerprop Care, our condition monitoring service, which enables us to support our customers in their operations and ensure operational quality throughout the lifetime of the vessel. For example, by monitoring the life of the propulsor unit&rsquo;s power transmission line, unnecessary downtime and maintenance can be avoided and both time and money can be saved. Steerprop Care turns unplanned disturbances into planned service.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><img alt="Our R&amp;D specialist work in close cooperation with our component suppliers and manufacturers" src="https://flockler.com/thumbs/sites/13425/shutterstock_1682600965_crop_green_small-d9ea0973-3acd-4763-ab4b-c4767cbb2c09_s600x0_q80_noupscale.jpg" /></div>
</figure>

<h2 class="article__heading--h2">Close cooperation to achieve the very best</h2>

<p>To be able to add true value to our customers&rsquo; business, we are always open to new ideas and developments. This requires close cooperation with our component suppliers and manufacturers, listening to their research projects, being curious and continuously learning more.</p>

<p>The maritime industry also presents new challenges. When customers ask eg. for larger propulsors, it calls for complex considerations when it comes to material properties and manufacturability. By working in close cooperation with the world&rsquo;s leading component manufacturers, we can meet these industry challenges. For example, cooperation with companies that specialize in gears has helped us to achieve the proper hardening depths for gear sets. In this way, we can shape the lower body and get even greater results in efficiency.</p>

<blockquote>
<p paraeid="{6a60d794-6206-468b-8fb7-78f1aa9991f8}{52}" paraid="337738946">Only the best is good enough for us. We do not make any compromises when it comes to reliability. As we are determined to create even more efficient propulsion systems for the market, we concentrate on optimizing the shape of underwater parts to minimize flow resistance and take greater advantages of the contra-rotating propellers. In our optimization studies, we use model tests and CFD calculations.</p>
</blockquote>

<p>As part of our commitment to developing propulsion technology that improve overall efficiency, we have developed the contra-rotating propulsion (CRP) technology ECO product line. The whole propulsor is pressure lubricated to lower mechanical losses compared with the commonly used oil bath lubrication technology. To ensure the reliability of the propulsion units, they are subject to comprehensive factory tests where the functionality of the system is tested and verified.</p>

<p>Another big development is our Steerprop LM unit, which uses an integrated permanent magnet (PM) motor that offers much better efficiency compared to a traditional induction electric motor. Moreover, by replacing our upper gear with an LM motor, we get more room in the ship for other components and we can avoid upper gear excitations in the ship hull, which is especially important for cruise vessels.</p>

<h2 class="article__heading--h2">Teamwork all the way</h2>

<p>Resolving the challenges in the market and delivering on our promise is not a one-person process or project. To succeed in performing the very best solutions for our customers, it is important to be surrounded by visionaries and brilliant individuals that work together for a common goal.</p>

<p>Steerprop&rsquo;s R&amp;D department has highly motivated in-house experts from many different fields. Along with external specialists, we work closely together to produce outstanding propulsion solutions. We do our very best every day, bringing skills from mechanical design and analyzing, hydraulics, hydrodynamics, materials, and sealing systems to create superior products to meet our customers&rsquo; needs.</p>

<blockquote>
<p paraeid="{6a60d794-6206-468b-8fb7-78f1aa9991f8}{206}" paraid="1661520049">In this way, we can fulfill our customers&rsquo; demands for more efficient and more reliable propulsion systems with the best lifecycle costs on the market.</p>
</blockquote>

<h2 class="article__heading--h2"><br />
Author</h2>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/210126-1-569-22e66165-ae11-4d63-9bd1-da8d5e9d770d_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<p><strong>Janne Martikainen</strong><br />
<em>Manager, Product Management</em></p>

<p><em>Janne holds a M.Sc. in Mechanical Engineering from Aalto University and joined Steerprop in 2013. He is responsible for the development of the Steerprop product portfolio, engineering for R&amp;D as well as project deliveries. His main focus is to continuously improve design practices, in order for Steerprop to be able to create the most customer driven, reliable and flexible products on the market.</em></p>
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</aside>

<p>&nbsp;</p>


Our culture is built on working for a purpose, on designing and delivering solutions that have a real impact and make a real difference. This resolve to perform has always guided the ingenious minds of the Steerprop R&D department.

Propulsion innovations that challenge the industry

<p class="article__lead-paragraph" paraeid="{6640b1d0-f6dc-420b-b96a-0c55e0a40dc5}{229}" paraid="637552774">When designing and dimensioning propulsors for optimal performance and fuel efficiency in arctic operations, it is crucial to understand how ice loads affect the vessel and the propulsor. It is also important to understand the requirements of each ice class. We at Steerprop have substantial experience and expertise in developing propulsion solutions for arctic operations, in fact, every third icebreaker in operation around the world relies on Steerprop technology.</p>

<p>How to best dimension every propulsor depends on the requirements of each ice class. To ensure the best results when designing each propulsor, it is important to check all classification requirements for that vessel. The ice class rules for arctic vessels in most class societies follow the IACS Unified Requirements for Polar Ships, with PC 1 being the hardest ice and PC 7 being the weakest &ndash; old ice is, in general, harder than new.</p>

<p paraeid="{1ca7a70a-75bb-451f-8ba8-d6e118333d1e}{80}" paraid="955040348">The nature of the ice, and how much pressure is required to break through, affects the load, so it is vital to understand how ice load affects the propulsor under the water. The class rules dictate how to dimension the housing to break through different ice load magnitudes. For example, the longitudinal load is factored differently than the transversal load, which is more critical with respect to the propulsor design. Still, both must account for the load of a consolidated ice sheet that slides down the hull and impacts the propulsor. Especially with azimuth thrusters, the transversal load can play a major role. Still, all directional ice loads and magnitudes need to be considered as they hit the propulsor from different sides while the vessel cuts through ice.</p>

<blockquote>
<p paraeid="{1ca7a70a-75bb-451f-8ba8-d6e118333d1e}{122}" paraid="1843996550">When dimensioning arctic propulsors, we at Steerprop analyze the impact of ice loads on the slewing ring dimensioning &ndash; the hull attachment inside the ship&rsquo;s hull, with bolts dimensioned to provide the strength of the housing that withstands the ice loads.</p>
</blockquote>

<p>Ice loads also need to be considered when choosing how and in which material the propulsion units should be manufactured. For most ice classes, we recommend stainless steel propellers, but bronze propellers are also available for lighter ice classes. Blade scantlings are calculated according to class rules. The entire propeller can be delivered as a monoblock or built with blades bolted on. In the latter alternative, it is considerably easier to replace a single blade underwater at sea rather than changing an entire propeller.</p>

<p>Pushing and pulling have traditionally been the preferred propulsor type for arctic operations, but recently Steerprop&rsquo;s contra-rotating propulsion (CRP) technology has been gaining traction with arctic expedition cruise vessels, as the CRP technology combines a robust, durable construction with high fuel efficiency. In addition, electric steering combined with CRP results in smooth operations and outstanding maneuverability. The CRP solution is also silent, it limits propeller noise by having two separate propellers, each with a lower loading, which helps prevent cavitation and lowers both onboard noise and underwater radiated noise.</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><img alt="Vessels in ice" src="https://flockler.com/thumbs/sites/13425/jaanmurtajat1-9a04d4e3-cd71-44f2-92f1-d3646b981865_s600x0_q80_noupscale.jpg" /></div>
</figure>

<p>Furthermore, our pollution-free sealing solution for the severe vibration conditions caused by operating in ice has proven effective through experience.</p>

<p>Each ice class affects not only the final propeller design and configuration but also its power transmission gear design and steering. Steerprop uses a unique gear transmission design with the proper and effective load-carrying contact area and pattern that can maintain the safety margin for any unexpected load.</p>

<p>Every Steerprop propulsor also comes with high-quality roller bearings for the very best performance. To maintain consistent quality, we have worked with only two or three top-flight bearing manufacturers over the years.</p>

<p>The most important outcome is to be able to ensure that the vessel can handle even unexpected loads and safely make it through the ice, even if the propulsor is damaged. That&rsquo;s why we use computerized ice simulations to take the entire line into consideration, including the torsional vibrations from the whole system. We provide our complete analysis of the forces to the ship design house or the shipyard in order for them to further calculate the hull strength needed.</p>

<p paraeid="{d6516871-ad4a-4564-b376-74bf5995bb76}{33}" paraid="1407330074">Ultimately, the classification societies set the rules. But it is up to us to calculate, simulate and formulate how much tension and deformation would be allowable at each point in the propulsor for a safe and efficient voyage above and beyond the rules, in the actual arctic marine environment.</p>

<h2 class="article__heading--h2">Author</h2>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/210126-1-222-50e9ef9f-8585-489b-8ec5-8e4506eb59c5_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<p><em><strong>Hannu Jukola</strong>, Senior Sales Manager at Steerprop, graduated as a Naval Architect with a specialization in hydrodynamics, from the Helsinki University of Technology in 1990.</em></p>

<p><em>Hannu joined Steerprop in the year 2000. His responsibilities at Steerprop Ltd. have included hydrodynamics and propeller design, sales in Nordic countries as well as managing R&amp;D programs related to development of high power CRP propulsors for passenger and ice going vessels.</em></p>
</div>
</div>
</aside>

<p>&nbsp;</p>


When designing and dimensioning propulsors for optimal performance and fuel efficiency in arctic operations, it is crucial to understand how ice loads affect the vessel and the propulsor. It is also important to understand the requirements of each ice class.

Basic dimensioning principles for arctic propulsors

<p class="article__lead-paragraph">With the recent advent of high-end computing power, computational fluid dynamics (CFD) has become an indispensable tool in the marine industry for selecting the right propulsion units and optimizing the design and the performance of the propulsors. Beyond predicting performance parameters, a detailed flow pattern study enables designers to better design products to avoid undesirable flow features, such as separation on the housing, which, in addition to increased drag, can also subject the propeller to significant non-uniform inflow.</p>

<p>Ship-scale CFD is now gaining traction in a much broader way when it comes to propulsion solutions &ndash; from the predesign stage to final tailoring of the unit&rsquo;s propeller blades. These state-of-the-art computational tools have greatly extended our design capabilities at Steerprop, enabling our designers to offer our customers tailor-made solutions that perfectly match the customers&rsquo; needs and their vessels&rsquo; operational profile.</p>

<p>Below are just some of the ways that ship-scale CFD is bringing new benefits to vessel designers, shipowners and system integrators.<br />
<br />
&nbsp;</p>

<figure class="article__figure">
<div class="article__figure__placeholder"><img alt="Hub vortex" src="https://flockler.com/thumbs/sites/13425/hub-vortex-781593f2-443d-403e-a340-ffcbee2860d7_s600x0_q80_noupscale.png" /></div>

<figcaption><span class="article__figure__caption">Capture of a hub vortex: Identifying energy losses is essential to improving the performance of the propulsor unit.</span></figcaption>
</figure>

<p><strong>Choice of propulsors:</strong> When shipowners select the right propulsion units for their vessels, the decision is still primarily based on comparative performance using model scale tests.</p>

<p>With a greater shift towards using azimuth propulsors in modern ships, however, unit performance is significantly affected by scale effects. The reliability of traditional empirical methods in scaling the performance of these units, especially ducted ones and podded propulsors, is still a great concern. Therefore, there is a need to supplement model scale tests with CFD tools to accurately predict the performance of the azimuth propulsor.</p>

<p><strong>Shape your housing:</strong> An optimized gear housing is essential from the perspective of overall azimuth propulsor unit performance. CFD, coupled with 3D modeling tools, has enabled us to carry out detailed investigations by defining and optimizing the housing in terms of geometrical parameters, like housing length, torpedo diameter, strut distance from propellers and more. A better understanding of their individual and combined effects through interaction on overall propulsor performance has enabled designers at Steerprop to better design our units, even in off-design and steering conditions.</p>

<p>With developed accuracy and confidence in modern computational tools, we can focus on optimizing the housing and thus our units at ship scale, rather than defining the unit&rsquo;s performance with less accurate model tests.</p>

<p><strong>Design your propeller for actual flow conditions:</strong> In times when there are conflicting design requirements for minimum-to-no-cavitation, low-noise and high-efficiency propeller units, it becomes more essential for designers to ensure that the inflow conditions are properly captured and described.</p>

<p>Traditionally, the design of propeller blades considers the nominal wake data obtained from model tests and couples it with not-so-reliable empirical extrapolation schemes. Today, computational tools, like BEM-RANS coupling, further improve the design process by making ship-scale effective wake available.</p>

<p>This has greatly improved our ability to predict behind-the-ship cavitation performance and thus avoid overly conservative designs.</p>

<h2 class="article__heading--h2">A sea of new opportunities</h2>

<p>The integration of these tools in our daily design process, with the level of detail in their prediction, is limited only by computing power. Additionally, the growing availability of on-board monitoring data on modern vessels will further extend the reliability and performance of these tools in days to come. At Steerprop, we&rsquo;re always on the lookout for new ways to put our computational tools to use for providing our customers with improved propulsion power and optimized performance.</p>

<h2 class="article__heading--h2">Author</h2>

<aside class="flockler__media">
<div class="flockler__media__img"><img alt="" src="https://flockler.com/thumbs/sites/13425/mahish_mohan_official-b4b26ff6-771b-44fe-af97-bcba1c85db5c_s600x0_q80_noupscale.jpg" /></div>

<div class="flockler__media__body">
<div class="flockler__media__description">
<p><em><strong>Mahish Mohan</strong> has worked as a Hydrodynamist at Steerprop since 2018. With his CFD knowledge, he is now driving the company&rsquo;s and team&rsquo;s capabilities forward in their use of computational tools for tailor-made customer solutions.</em></p>
</div>
</div>
</aside>

<p>&nbsp;</p>


Ship-scale CFD is now gaining traction in a much broader way when it comes to propulsion solutions – from the predesign stage to final tailoring of the unit’s propeller blades. These state-of-the-art computational tools have greatly extended our design capabilities at Steerprop.

Shifting focus to ship-scale CFD in the marine industry

Steerprop is a leading designer and manufacturer of azimuth propulsion systems for the most demanding applications and toughest conditions.
Our culture is built on working for a purpose, on designing and delivering solutions that have a real impact and make a real difference.


Propulsion innovations that challenge the industry

Basic dimensioning principles for arctic propulsors

Shifting focus to ship-scale CFD in the marine industry

Serving the Lower North Shore reliably with 24/7 monitoring

Steerprop Stories

A summer internship at Steerprop offers valuable learning opportunities

Serving the Lower North Shore reliably with 24/7 monitoring

Steerprop to Deliver the Azimuth Propulsors to a Series Of RAmparts Tugboats

Steerprop’s extensive FAT improves quality and shortens commissioning time

Coey Viking and Cooper Viking: reliable propulsion teamed with reliable support

Steerprop donates to a new Professorship in Automation Technology

Evolving Icebreakers

Steady maneuvering in rocky waters with Azimuth propulsion

Steerprop Services: Supporting customers by maximising the uptime of propulsion assets

Steerprop References

Retrofit installation of the improved Steerprop Control System puts you back in control

Ice-going vessels put their trust in CRP thrust