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| Rolls-Royce RB211-535E4 |
 | Late in 1943 the decision was taken at Rolls- Royce to build a turbo-prop for aircraft speeds of around 400 mph. The resulting engine, known as the RB50 Trent, was basically a Derwent II with a flexible quillshaft to reduction gear and propeller. On 20 September 1945 a Gloster Meteor, fitted with two Trents, became the world’s first turboprop powered aircraft to fly. | |||
| Rolls-Royce RB50 Trent |
