Blueprints for the Oil Piping and Oil Pipe Relief Valve for the Goshawk 11.
| Identifier | ExFiles\Box 77\2\ scan0080 | |
| Date | 30th March 1921 | |
| z X.4235 To BY. {R.W. Bailey - Chief Engineer} from Da. {Bernard Day - Chassis Design} c. to TB. c. to Hs. {Lord Ernest Hives - Chair} c. to RHC {R. H. Coverley - Production Engineer} (1 print) Da {Bernard Day - Chassis Design} 2/CB30.3.21. X.4232 X.4235 Re. Oil Piping & Oil Pipe Relief Valve Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 11. Please receive herewith three blue prints of LeC.1368 - Please put details in hand. A scheme of the Banjo to the Valve Rocker Shaft will be sent along in a short while. Da. {Bernard Day - Chassis Design} R.R. 285A 100 (T) (S.H. 798. 10-12-30) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2947 | ||
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).