Rolls-Royce Develops New Lightweight Propulsion System
Rolls-Royce has signed a contract with the Italian yacht builder Benetti to deliver a new generation of high performance, lightweight steerable thruster that makes use of carbon fibre composites.
Efficient and lightweight propulsion is key to reducing the environmental impact of a modern yacht, and the luxury yacht builder has been working with Rolls Royce to create this new propulsion system for their new range of megayachts.
The new Azipull Carbon 65 uses carbon fibre material for load carrying parts, resulting in a substantial reduction of the propulsion system’s weight. The new thrusters also facilitate a better vessel lay out while maintaining high propulsion efficiency, excellent manoeuvring capabilities and easy maintenance.
Designed at the beginning for fast yachts, with further applications in passenger vessels and work boats, the Azipull Carbon brings to the market a lightweight, reliable and highly efficient propulsion system with very low noise and vibration levels.
The first thruster in the series, AZP C65, is designed for a power rating of 2 MW and fitted with a fixed pitch, pulling type propeller – meaning the propeller faces forward. The driveline is designed with two spiral bevel gear sets, installed in a supporting structure that ensures optimum load carrying capacity in all operating conditions. The thruster can be steered using a hydraulic system. An Automation and Control system, based on Rolls-Royce’s Common Controls building blocks, has also been developed to match the new thrusters, which each weigh only 2,800 kg (dry).
The contract covers a number of thrusters, planned for delivery over the next three years and delivered to RINA Rules for Classification of Yachts. The first yacht, a 125 ft Fast Displacement called IRONMAN has already been delivered. Hulls two and three are under construction with delivery expected in the next few months.