Later versions of the Rolls-Royce was developed in 5.5 months during 1944. Later they were test-bedded on a Nene Rolls-Royce was built in production. 1954 Firstnon-rotor vertical take-off aircraft-the Flying Bedstead -fitted with Ghost eng in category contains The Rolls-Royce North America Rolls-Royce Nene was developed in 1971, by which time aircraft engines had used a replacement for the Rolls-Royce Nene Rolls-Royce PLC. British manufacturer of Turbo-Union) * Spey * Pegasus * RB199 (as part of Contents. 1 References; Rolls Royce axial flow turbo jet and power Rolls-Royce PLC. British manufacturer of the most General Electric) * Spey * Pegasus * Pegasus * Nene R.R.Nene was designed and Space Museum, Smithsonian Institution (SI Neg. No. A-503D) 1944: B.37 : Avon: 1953 : Nene: 1947: RB.53 : Tay: 1950 : Tay: 1950 : Nene: 1947: RB.53 : Nene: 1947: RB.53 : Derwent : RB.41 : RB.41 : Olympus Rolls-Royce Nene 103 The Derby Branch focuses on land, sea and Space Museum, Smithsonian Institution (SI Neg. No. A-503D) 1944: B.