Rolls-Royce produces one of the broadest turboshaft engine families available in the world, with a power range stretching from 300 shaft horsepower to more than 7,300shp.

The industry-leading fleet of 18,000 Rolls-Royce turboshaft engines - powering light aircraft, helicopters and uninhabited aerial vehicles (UAVs), in both civil and military markets - has accumulated 180 million flying hours. Customers draw on the support of the Rolls-Royce Model 250 FIRST network of 27 service centres and 170 Rolls-Royce technical representatives. The 2,100-3,000 shaft horsepower RTM322 engine is made by a 50:50 joint venture comprising Rolls-Royce and Turbomeca, a business unit of Snecma, and is the engine of choice in its class.

Two variants of the RTM322-powered EH101 are in operation with the United Kingdom's Royal Navy and Royal Air Force, and the engine also powers the British Army's Apache AH Mk1 helicopter. Additionally, Portugal and Denmark have chosen the RTM322 for their EH101 helicopters and in June 2003, the Japanese Defence Agency selected the engine to power its EH101 fleet of up to 14 helicopters.

Germany, France, the Netherlands, Portugal, Finland, Sweden, Norway, Oman, Greece and Australia have also selected the RTM322 to power their NH Industries' NH90 fleets.

Approximately 1,500 RTM322 engines have been ordered or optioned for EH101, Apache AH Mk1 and NH90 helicopters. It now powers over 75 per cent of all EH101 helicopters ordered and has been selected by over 85 per cent of NH90 customers. The RTM322 is also being offered for a number of additional applications, including the AgustaWestland/Lockheed Martin US101, the Sikorsky S-92 and the Sikorsky UH-60 Black Hawk family.

The T800 is produced by the Rolls-Royce/Honeywell joint venture the Light Helicopter Turbine Engine Company (LHTEC). Originally developed for the RAH-66 Comanche program, the T800 family - which spans 1,360 - 1,680 shp - is now in production for the AgustaWestland Super Lynx 300, as ordered by Malaysia, Oman, South Africa and Thailand. The CTS800 is also used on the ShinMaywa US-2 amphibian.

The MTR390 has been developed by MTU Aero Engines, Turbomeca and Rolls-Royce to power the Eurocopter Tiger helicopter, which has been ordered by the armed forces of France, Germany, Australia and Spain. The Rolls-Royce Gem engine, the original powerplant of the Lynx family of helicopters, celebrated the dual milestone of 25 years in service and three million flight hours during 2001, and - along with the Gnome engine powering the Royal Navy Sea King - was extensively used in support of Op Telic in 2003.

The Rolls-Royce Model 250 remains the engine of choice for light helicopters and continues to attract new customers and new applications, including Kamov's Ka-226 light twin helicopter, the Northrop Grumman RQ-8A Fire Scout vertical take-off UAV, and the Schweizer RU-38B.