Rolls-Royce Turbomeca Adour: two-shaft low bypass turbofan aircraft engine

Rolls-Royce Turbomeca Adour

The Rolls-Royce Turbomeca Adour is a two-shaft low bypass turbofan aircraft engine developed by Rolls-Royce Turbomeca Limited, a joint venture between Rolls-Royce (UK) and Turbomeca (France). The engine is named after the Adour, a river in south western France.

The Adour is a turbofan engine developed primarily to power the Anglo-French SEPECAT Jaguar fighter-bomber, achieving its first successful test run in 1968. It is produced in versions with or without reheat.

As of July 2009 more than 2,800 Adours have been produced, for over 20 different armed forces with total flying hours reaching 8 million in December 2009. The U.S. military designation for this engine is the F405-RR-401 (a derivative of the Adour Mk 871), which is currently used to power the fleet of Boeing / BAE Systems T-45 Goshawk trainer jets of the United States Navy.

Country: France-UK

First run: 1968

Production: >2,800

Length: 114 inches (2.90 m)

Diameter: 22.3 inches (0.57 m)

Dry weight: 1,784 lb (809 kg)

Compressor: 2-stage LP, 5-stage HP

Turbine: 1-stage LP, 1-stage HP

Maximum thrust: 6,000 lb (27.0 KN) dry / 8,430 lb (37.5 KN) with reheat

Overall pressure ratio: 10.4

Bypass ratio: 0.75-0.8

Thrust-to-weight ratio: 4.725

Bourget Museum (ParisFrance)

Read more: History of engines with Martin Perez ...