Propellers
Standard Propellers
For many leisure and commercial vessels a propeller from our standard range can be specified, depending upon the application. These are manufactured using a fixed blade design of 5 degrees skew and 5 degrees aft rake for two, three, four and five blade propellers. All are hand finished and statically or dynamically balanced by our skilled propeller technicians and are individually inspected to rigorous standards.
Propellers from our standard range are available in both CU-1 Manganese-Bronze and CU-3 Aluminium Bronze and are manufactured in accordance with ISO R484 class 2 with class 1 available on request.
At our UK headquarters we hold an extensive range of 3 and 4 blade propellers up to 700mm diameter in stock in pilot bored format. This offers BT Marine the flexibility to machine a stock propeller to the customer?s requirement on a short lead-time.
Custom Propellers
BT Marine design and manufacture custom propellers for commercial, military and leisure vessels including, Tugs, Offshore support vessels, Patrol boats, High speed launches and Interceptors, Landing craft, Superyachts, WFSV, Multicats and Ferries.
Working in close co-operation with both naval architects, builders and vessel operators, we ensure that the custom designed propeller meets the specifications for maximum speed, fuel economy and efficiency or other operational requirements such as low noise and vibration.
To ensure optimum performance is achieved, BT Marine use years of experience and advanced 3D computer modelling for designing the propeller and creating simulations for accurate forecasting of critical factors such as speed, fuel consumption and efficiency prior to manufacture.
Custom propellers are typically manufactured to ISO R484 class 1 and are carefully finished and balanced, but where required, we can offer ISO R484 class S propellers that have fully CNC machined blade surfaces to offer the ultimate in fixed pitch propeller technology.
Proudly serving numerous world-renowned shipyards and boat builders across commercial, military and pleasure boat industry. We are committed to delivering high-quality, high-performance solutions that drive excellence in marine propulsion and navigation.