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).
Request to provide a single plate flywheel and clutch to Walter Bell to determine its polar moment of inertia.
| Identifier | ExFiles\Box 93\3\ scan0035 | |
| Date | 21th March 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} +312 Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}14/KW.21.3.35. SpectreCodename for Phantom III Clutch. Will you please hand to Walter Bell the next complete single plate flywheel and clutch to N.Sch.4229 so that he can determine the polar moment of inertia. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||