CJR Propulsion is celebrating 10 years since designing and manufacturing their first flow-aligned rudder system. Technical Sales Director, Alex Stevens, explains: “Back in 2014, this technology, also referred to as twisted rudders, was only being utilised by larger ships to improve efficiency. However, when a customer told us they needed…
How to choose a propeller: comparison trial data case study
The way a propeller is designed and manufactured can significantly improve speed and increase ride comfort. It can also reduce long-term costs thanks to lower fuel consumption and an extended working life. The case study below compares CFD-designed CNC-machined Class S propellers against hand-finished Class 1 propellers, so you can…
CJR Propulsion partners with Wingate Marine to deliver experienced on-the-ground technical support
CJR Propulsion has partnered with Wingate Marine to deliver experienced on-the-ground technical support for their customers on the West Coast. Alex Stevens, CJR Propulsion’s Technical Sales Director, said: “I’m delighted to work with Wingate Marine as our West Coast Master Distributor. It means we can be confident our customers in…
How to increase boat speed: Benefits of using flow-aligned rudders – a case study
When included as part of a fully optimised propulsion package, well-designed rudders can have a notable impact on maximising boat speed. They can also reduce fuel consumption, noise, vibration, and cavitation levels. Why? Although traditionally motor yacht rudders are straight, they operate in an area of uneven water flow directly…
How to choose the right propeller for your workboat or superyacht
The right propulsion system is key whether your priority is achieving optimum speed, improving fuel efficiency, reducing lifetime costs, or enhancing comfort. To help you source the best available system, we’ve put together this quick list outlining what questions you should be asking your propeller supplier. The propulsion and sterngear…
METSTRADE Show 2023: Everything you need to know
What is the METSTRADE Show? Later this month, the 35th annual METSTRADE Show will take place. It is the world’s largest leisure marine equipment trade show aimed at marine industry professionals. With around 1700 exhibitors and thousands of visitors expected, it is an annual event where the leisure marine industry…
Propellers: A complete history
CJR propulsion has 80 years of experience in the marine manufacturing industry and we like to think that in that time we have become propeller experts. We are also forward-thinking and innovative manufacturer blazing trails in optimising the speed and quality of our outputs. Despite all this, we still believe…
Propellers: A complete guide
What is a propeller and what is its function? Propellers are sometimes colloquially referred to as ‘screws’, and that’s because at a basic level, they are the same thing. Like a screw is pushed into a wall by a helical thread turning clockwise, a propeller has radiating blades coming away…
Fort Lauderdale International Boat Show 2023: Everything you need to know
What is the history of the Fort Lauderdale International Boat Show? Later this month, the 64th annual Fort Lauderdale Boat Show will take place. The show has a rich history, beginning with informal displays in the Fort Lauderdale Yacht Club in the 1960s. The first official show in 1976 featuring…
CJR Propulsion attends Cannes Yachting Festival 2023
The sun was shining down on Vieux Port on Wednesday as our Technical Sales Director Alex Stevens attended the Cannes Yachting Festival. He met with Lindsay Hill, CJR’s representative in the South of France, as well as numerous clients of CJR. What is the Cannes Yachting Festival? Cannes Yachting Festival…