CJR Propulsion offers the ultimate in rapid replacement service for fully optimised Class S yacht propellers.
Forget needing to join a ‘replacement club’ and making do with standard patterns and lower quality Class 1 products, if you damage your superyacht, motor yacht or commercial vessel propellers, and a repair isn’t possible, CJR’s rapid replacement service can supply fully-optimised, Class S propellers in just two weeks. What’s more, by leveraging our global network of partners, we can visit your vessel anywhere in the world, creating a highly-accurate 3D scan of the existing props and hull form, before producing an identical replacement – and all within 14 days.
Alternatively, to gain potentially significant performance and ride comfort improvements, we can design and manufacture an entirely new set of fully-optimised replacement propellers, using advanced computational fluid dynamics (CFD). Our bespoke software visualises your boat’s specific hull form and entire stern gear set-up before performing hundreds of iterative simulations to determine the optimal design and position for each vessel, creating a unique design that can increase performance, reduce vibration and cavitation, and extend the life of your props. We have increased the top speed of several vessels by up to two knots, just by switching to our propellers.
The service has specifically been developed to meet the needs of yacht charter businesses, owners, and new build and refit boat yards, who need a high quality but timely solution to damaged or broken propellers or performance issues. In one instance, a UK-based superyacht owner was able to replace his damaged props in just 12 days, securing hundreds of thousands of pounds in charter revenue.
This uncompromising replacement service has been achieved through a four-million-pound investment in our design and manufacturing facilities, combining CFD with advanced ‘patternless’ robotic mould making, multiple 5-axis CNC machining centres, and the production automation technology required to tie every step of the process together.
Because we don’t rely on hand finishing, standard patterns or a best-fit mentality, every propeller using this emergency service can be certified ISO 484/ 2-1981 Class S, which requires the highest levels of production accuracy and the adherence to the smallest tolerances.
“Due to unexpected circumstances with our usual propeller supplier we had to urgently find a new supplier for a propeller for a fully classed vessel.
The vessel was completed, sitting on the dock, waiting to be launched so we could commission her and deliver to the client. So we had very little time.
We contacted CJR and from there on we got quickly back on track. Using their rapid service, CJR was able to design, fabricate and certify the propeller in a matter of only some weeks.
Thanks to CJR, we were able to keep the schedule and deliver
Juha Granqvist, Sales Manager