Rolls-Royce UK is a company that manufactures steam generators, engines, and turbines. It operates 4 divisions: Civil Aerospace, Defense, Power Systems, and New Markets. The Civil Aerospace division manufactures aero engines for large commercial aircraft, regional jets, and business aviation markets. The Defense division provides aero engines for military transport and patrol aircraft and supports nuclear propulsion plants for nuclear submarines. The Power Systems division offers integrated solutions for onsite power and propulsion. The New Markets division develops sustainable products for new markets.