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).
Letter to Captain de Normanville of Overdrive Gears Ltd. regarding the use of SAE.30 engine oil for gearbox lubrication.
| Identifier | ExFiles\Box 136\2\ scan0075 | |
| Date | 1st April 1939 | |
| 483 Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}G/MH.{M. Huckerby} 1st. April, 1939. Capt. E.J. de Normanville, Overdrive Gears Ltd., 7c, Victoria Street, LONDON, S.W.1. Dear Captain de Normanville, Thank you for your letter of March 31st. We are now using an SAE.30 engine oil for gearbox lubrication. Yours sincerely, | ||