Bristol Siddeley 605

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Rocket Engine BS605-002.JPG
Country of origin United Kingdom
First flight 14 March 1965
Manufacturer Bristol Siddeley
Application RATO, swing-out from fuselage
Liquid-fuel engine
Propellant hydrogen peroxide / kerosene
Thrust 4,000 lbf
Burn time 30 seconds
Length 1067 mm
Diameter 305 mm
Dry weight 166 kg

BS.605 on display at the SAAF Museum in Port Elizabeth, South Africa

The Bristol Siddeley BS.605 is a retractable take off assist rocket engine burning hydrogen peroxide and kerosene. Its design was based on the smaller chamber of Armstrong Siddeley's Stentor engine.

A pair were fitted to the Buccaneer S.50s of the South African Air Force for hot and high operations.

The BS.605 was also considered for the Bluebird CMN-8, a design for a supersonic land speed record car, to be driven by Donald Campbell.[1]

Engine specifications[edit]

General characteristics[edit]

  • Type: rocket
  • Length: 1067 mm
  • Diameter: 305 mm
  • Dry weight: 166 kg


  • Thrust: 4,000 lbf (18 kN) for 30 seconds

Rated at 8,000 lbf (35.6 kN) [2]


  1. ^ Holthusen, Peter J.R. (1986). The Land Speed Record. pp. p67. ISBN 0-85429-499-6. 
  2. ^ "United Kingdom Aerospace and Weapons Projects: Rocket Engines". Skomer.