List of suggested experimental drawings required as a result of a visit to the U.S.A.
| Identifier | ExFiles\Box 173\4\ img181 | |
| Date | 1st January 1936 | |
| USA To Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 22/KW.1.1.36. Suggested experimental drawings required from RHC {R. H. Coverley - Production Engineer} 's Dept. as a result of visit to the U.S.A. (1) Flexible flywheel for Spectre(Codename for Phantom III) and 20/25. (2) Packard type 4 balance weight scheme for the Bentley. (3) Thompson's suggested synchromesh cone improvements for the Spectre(Codename for Phantom III). (4) Graham type induction system in which the end valves are exhausts and not inlets. (5) Packard type crank damper for Spectre(Codename for Phantom III) or Bentley. (6) Buick type water heated rocker shaft for 20/25. (7) Crankcase ventilation scheme. Drawings required from Design Department :- (1) Spectre(Codename for Phantom III) rear spring front anchorage with spring eye turned down. (2) Rubber pads between the rear axle and springs. Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} | ||
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).