[1] The Trent was based on an invention by Sir Frank Whittle.

It was a Derwent Mark II turbojet engine with a cropped impeller (turbine unchanged)[2] and a reduction gearbox (designed by A A Rubbra) connected to a five-bladed Rotol propeller.

The Trent ran for 633 hours on test before being installed in a Gloster Meteor jet fighter which flew for the first time on 20 September 1945 at the start of a 298-hour flight test programme.

[3] A preserved Rolls-Royce Trent turboprop engine is on display at the London Science Museum.

A preserved RB50 Trent is displayed at the Rolls-Royce Heritage Trust in Derby.