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Rolls-Royce RB.203 Trent


First run in December 1967, the Rolls-Royce RB.203 Trent was a British medium-bypass turbofan engine of around 10,000lb thrust, bearing no relation to the earlier Rolls-Royce RB.50 Trent turboprop or the later high bypass Rolls-Royce Trent turbofan.

The RB.203 was a private venture engine based around the core of the Rolls-Royce Turbomeca Adour turbofan used in the SEPECAT Jaguar and the later Hawker Siddeley Hawk.

The RB.203, the first three-spool engine, was intended as a civilian replacement for the earlier Rolls-Royce Spey.


Type: Three-spool medium bypass turbofan
Length: 82.2 in (208.8 cm)
Diameter: 38.7 in (98.3 cm)
Dry weight: 1,751 lb (794 kg)
Compressor: Single-stage fan, four-stage intermediate pressure, five-stage high pressure
Combustors: Annular chambers
Turbine: Single-stage high pressure, single-stage intermediate, two-stage low pressure
Maximum thrust: 16000 lb (71.4 kN)
Overall pressure ratio: 16:1
Bypass ratio: 3:1
Thrust-to-weight ratio: 5.55:1







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