Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,987 pages of information and 232,838 images on early companies, their products and the people who designed and built them.

Royal Aircraft Factory: R.A.F.4

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Note: This is a sub-section of Royal Aircraft Factory

Air-cooled 90-degree V12 engine introduced in 1914.

  • R.A.F.4 140-hp prototype based on R.A.F.1 engine
  • R.A.F.4a 140-hp production version
  • R.A.F.4b 170-hp based on R.A.F.1b engine
  • R.A.F.4c 170-hp with aluminium cylinders
  • R.A.F.4d 200-hp supercharged version
  • R.A.F.4e 200-hp supercharged version
  • R.A.F.4T 200-hp crank-case only.

See Also


Sources of Information

The Royal Aircraft Factory by Paul R. Hare. ISBN, 0-85177-843-7