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    Trent 900

    The Rolls-Royce Trent 900 is part of the Trent engine family.

    The engine powers Airbus’s A380 aircraft. It is the result of experience acquired on the development of the Trent engine family – examples include the counter-rotating shaft solutions to reduce fuel consumption and noise levels. The A380 entered into service in 2007 with Singapore Airlines.

    Avio, a Rolls-Royce partner, was responsible for the design, production and overhaul of the accessory drive gearbox, oil pump and oil tank.

    Main engine characteristics

    Max Power at SL 70,000 lb
    Fan diameter 116 inches
    Overall pressure ratio 37 - 39
    Bypass ratio 8.7 - 8.5

    Leaflet - Trent 900


    Avio's module details

    Accessory Drive Train

     

    The Trent900 accessory drive train includes the:

    • “Step-Aside” gearbox, an angular gearbox directly flanged on the intermediate engine casing
    • external gearbox, comprising a Transfer Gearbox and accessory drive gearbox mounted on the front side of the Fan Case, which operates 8 accessories of the engine and aircraft, which has an additional accessory (HMU)
    • angular transmission shaft mechanically connecting the “Step-Aside” gearbox with the external one

    The accessory drive gearbox is designed to optimise weight. Avio has an acknowledged world leadership for the complete module of this mechanical transmission for the accessory drive train.

     
    Other Components

     

    Avio is responsible for the design, development and production of the following components for the Rolls-Royce Trent900 engine:

    • Oil pump, characterised by multi-stage architecture, combining lubrication and recovery elements, with vano technology;
    • Oil tank, a separate module installed on the Fan Case.

     

    Products

    Accessory Drive Train
    Accessory Drive Train
    Other Components
    Other Components

    Applications

    A380
    A380