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).
Phantom III Gearbox and urging the progression of the N.Sch.4661 9° cone scheme experiment.
| Identifier | ExFiles\Box 94\1\ scan0278 | |
| Date | 23th December 1935 | |
| X 328 To RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Smth.11/KW.23.12.35. Phantom III Gearbox. This note is to ask you to urge N.Sch.4661, the 9° cone scheme. We regard this as a very important experiment. Hs{Lord Ernest Hives - Chair}/Smth. | ||