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).
Requesting further testing on a Phantom III gearbox experiment involving a soft third motion shaft.
| Identifier | ExFiles\Box 94\2\ scan0023 | |
| Date | 2nd September 1936 | |
| To RHC.{R. H. Coverley - Production Engineer} x328 Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}6/KW.2.9.36. Phantom III Gearbox. The experiment of having a soft third motion shaft to keep the top and third gears in mesh has not so far been a success. We want therefore to get further testing done on the American scheme of driving on six adjacent teeth only. For this purpose will you please fit to Box No. 8HS{Lord Ernest Hives - Chair} the first motion shaft, third motion shaft, and all the top and third synchromesh mechanism, at present in 4HS{Lord Ernest Hives - Chair}, to Rm.{William Robotham - Chief Engineer}141. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||