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).
Instruction to machine a spiral groove on the front shock damper piston for a 'Spectre II for France' to increase lubrication.
| Identifier | ExFiles\Box 91\3\ scan0100 | |
| Date | 17th September 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} X 300e (2) Hs{Lord Ernest Hives - Chair}/Les.27/KW.17.9.35. SpectreCodename for Phantom III II for France. In order to increase the lubrication for the front shock damper piston, will you please machine a spiral groove down the spring location cylinder, the groove being .050" deep and .075" wide and having a pitch of .500". Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} | ||