Rolls-Royce designs, develops, manufactures and services integrated power systems for use in the air, on land and at sea. It is one of the world’s leading producers of aero engines for large civil aircraft and corporate jets. Rolls-Royce is the second largest provider of defence aero engines and services in the world. In land and sea markets, reciprocating engines and systems from Rolls-Royce are in marine, distributed energy, oil and gas, rail as well as off-highway vehicle applications. In nuclear, it has strong instrumentation, product and service capability in both civil power and submarine propulsion.