Rolls-Royce Goshawk

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The Rolls-Royce Goshawk was a development of the Rolls-Royce Kestrel featuring evaporative cooling. It provided 660 h.p. and powered the Short Knuckleduster, the Supermarine Type 224 (a predecessor to the Supermarine Spitfire^[1]) and initial examples of the Hawker Hurricane.

Developed as the Kestrel IV, the evaporative cooling machine was named Goshawk. A small number were built and they flew only in prototypes as a few manufacturer's private ventures and "one offs". Powers for individual installations are quoted between 650 and 700hp.

It was the power unit specified for the twin engined Short Knuckleduster flying boat (K3574) to Specification R24/31 and "preferred" for the Blackburn F3 (K2892), Bristol type 123, Hawker PV3, Supermarine type 224 (K2890) and the Westland PV4 biplane (K2891) to Fighter specification F7/30

It also powered the private venture Hawker "Intermediate Fury" (G-ABSF) and the Westland Pterodactyl V (K2770) and was installed for trials in the Gloster TSR38 (S1705), the first Gloster Gnatsnapper prototype (N227) and the Hawker High Speed Fury (K3586)

References Blackburn Aircraft since 1909, A, J. Jackson (Putnam) Bristol Aircraft since 1910, C. H. Barnes (Putnam) Gloster Aircraft since 1917, D. N. James (Putnam) Hawker Aircraft since 1920, F. K. Mason (Putnam) Shorts Aircraft since 1900, C. H. Barnes Supermarine Aircraft since 1914, C. F. Andrews & E. B. Morgan Westland 50, J. W. R. Taylor & M. F. Allward (IanAllan)