|The intake cover open revealing the intakes of the fuselage mounted RB145 engines|
|National origin||United Kingdom|
|First run||April 1961|
|Major applications||EWR VJ 101|
|Developed from||Rolls-Royce RB108|
The Rolls-Royce RB.145 was a British jet engine designed in the early-1960s by Rolls-Royce for use as a lightweight VTOL lift and cruise engine. Developed from the Rolls-Royce RB108 the RB.145 featured more accessories and a higher thrust rating. Six engines developed by MAN Turbo were fitted to the first prototype of the EWR VJ 101 experimental German fighter aircraft, achieving supersonic flight by July 1964.
- Standard un-reheated turbojet
- the RB.145 with reheat.
Data from Aircraft engines of the World 1964/65 
- Type: Single spool turbojet
- Length: 103.5 in (2,630 mm)
- Diameter: 15.5 in (390 mm) (intake diameter)
- Dry weight: 600 lb (270 kg)
- Compressor: Nine-stage axial-flow
- Combustors: Annular with duplex burners
- Turbine: 2-stage axial turbine
- Fuel type: JP-1 (D.Eng.R.D.2494) or JP-4 (D.Eng.R.D.2486)
- Oil system: Return system at 35 psi (2.4 bar), oil to D.Eng.R.D.2487
- Maximum thrust:
- Take-off, wet: 16.2 kN (3,650 lbf)
- Take-off, dry: 12.2 kN (2,750 lbf)
- Wet:2.2 lb/lbf/h (220 kg/kN/h)
- Dry:1 lb/lbf/h (100 kg/kN/h)
- Oil consumption: 0.5 lb/h (0.23 kg/h)
- Thrust-to-weight ratio: 6.08 lbf/lb (0.0596 kN/kg)
- Flight International, 7 January 1965 www.flightglobal.com Retrieved: 31 December 2009
- Wilkinson, Paul H. (1964). Aircraft engines of the World 1964/65 (21st ed.). London: Sir Isaac Pitman & Sons Ltd. p. 139.
- Gunston, Bill (1989). World Encyclopaedia of Aero Engines (2nd ed.). Cambridge, England: Patrick Stephens Limited. ISBN 978-1-85260-163-8.