Rolls-Royce Trent (turboprop)
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- See also: Rolls-Royce Trent
The Rolls-Royce Trent or RB.50 was the world's first turboprop engine. There is some debate over the origin of the "RB" prefix - having originated from the "Rover-Barnoldswick" project and plant names from the original Rover gas turbine projects which were passed into Rolls-Royce hands, it is now generally accepted, albeit some would say erroneously, to refer to "Rolls-Barnoldswick". It was based on a concept provided by Sir Frank Whittle and was essentially a Derwent Mark II turbojet engine with an additional turbine stage driving a reduction gearbox connected to a five-bladed Rotol propeller. It was tested in a Gloster Meteor jet fighter.
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