Weights of the Goshawk 11 car and a comparison of front axle weights with the 40/50 HP model.
| Identifier | WestWitteringFiles\I\June1922\ Scan25 | |
| Date | 14th June 1932 | |
| To R. {Sir Henry Royce} from Hs. {Lord Ernest Hives - Chair} c. to CJ. c. to E. {Mr Elliott - Chief Engineer} c. to M. {Mr Moon / Mr Moore} c. to HY. {Tom Haldenby - Plant Engineer} c. to RP. ORIGINAL. No7/LG14.6.32. GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 11. WEIGHTS. Y4388 Below are weights of complete Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) cars, also comparison of front axle weights of 40/50 H.P. and Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11. Hs. {Lord Ernest Hives - Chair} | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).