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).
Fitting and testing two different synchro mesh gearboxes.
| Identifier | ExFiles\Box 104\4\ scan0057 | |
| Date | 22th October 1931 | |
| x5310. To RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}1/MJ.22.10.31. SYNCHRO MESH GEARBOXES. Will you please fit the gearbox tested on 12-G4. to 18-G4. in a similar condition as for the last test. The oil used to be Amber "A". The other gearbox we should like fitted to 12-G4 with grooved whitemetal bushes .0035 clearance, and the additional oil hole for further tests on types of oil and prevention of reverse gear jumping out. Hs{Lord Ernest Hives - Chair}/H.Grylls. | ||