December 12, 2013

Propulsion: Rolls-Royce Azipull

The Azipull combines the advantages of the pulling propeller with the flexibility of mechanical drive, and can be linked to any prime mover; diesel, gas turbine or electric motor, dependent on individual customer requirements. It is designed to offer efficient propulsion and maneuvering on higher speed vessels. The streamlined leg and skeg recover swirl energy from the slipstream, raising overall propulsive efficiency. The leg has a wide chord to optimism rudder effect and improve course stability. Azipull is available with a controllable or fixed pitch propeller. Control Pitch propellers give greater flexibility with regard to prime mover selection. With fixed pitch propeller selection the Azipull units must be integrated to the ship and designed into the hull form for the best results, with reduced hull insertion loads.  The upper gear housing, steering gear and auxiliaries are from the standard Rolls-Royce azimuth truster range to maximize spares commonality. Rolls-Royce Azipull is available in four models AZP085, AZP100, AZP120, and AZP150. Azipull models can take from 900 up to 5000hp, and are so far directed more towards commercial vessels.