Simplified oil pressure regulating valve for the Goshawk engine.
| Identifier | WestWitteringFiles\D\January1920\ Scan10 | |
| Date | 20th January 1920 guessed | |
| To Da. {Bernard Day - Chassis Design} from E. {Mr Elliott - Chief Engineer} Copy to CJ. " " Bn. {W.O. Bentley / Mr Barrington} " " Hs. {Lord Ernest Hives - Chair} " " Ck. {Mr Clark} ORIGINAL E1/G15.1.20. X.3784. - GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)). OIL PRESSURE REGULATOR. In accordance with our memo on the modification to the Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) engine starter, we send you herewith drawing No. LeC.1190 shewing the simplified oil pressure regulating valves, casing etc, Would you kindly instruct this instead of the design in which the high pressure oil operates on a piston valve. E. {Mr Elliott - Chief Engineer} | ||
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).