Custom Propellers

A custom propeller is designed for a specific vessel and engine combination to enable that vessel to achieve its optimum performance. The criteria for optimum performance usually refers to maximum speed but can also relate to other operational requirements as stipulated by the naval architect or the vessel operator, such as low noise and vibration. In assessing the requirements of a custom propeller, a study is carried out and the hydrodynamic and cavitation characteristics are checked using 'Lifting Surface Theory'- the most advanced calculation tool available.

Once the propeller has been sized for diameter, DAR and blade number, the propeller blade geometry such as pitch distribution, blade thickness, skew, camber and blade profiles are optimised in the design to maximise performance. This process is carried out using specialised computer software that can simulate the vessel's performance using different propellers.

At this stage design parameters such as trim, angle, fuel consumption, cruising and top-end speed can be accurately forecasted and presented to the client for approval prior to manufacture.

The Teignbridge designers have a wealth of experience in designing propellers from specially strengthened blades for operating in ice, to highly skewed blades for use on vessels where low noise and vibration free performance are the most important criteria.

The company operates three C.A.D./C.A.M. (computer aided design and computer aided manufacture) systems. These help the designer create the most efficient hydrodynamic designs of propeller blades and sections. These advanced techniques together with modern manufacturing methods help Teignbridge retain its place as a market leader for propulsion equipment.