Weight-saving modification to the J.3. gearbox 3rd motion shaft.
| Identifier | ExFiles\Box 123\3\ scan0164 | |
| Date | 24th March 1934 | |
| X4704 To BY. {R.W. Bailey - Chief Engineer} from HDY. {William Hardy} c. Wer. F. {Mr Friese} Hs. {Lord Ernest Hives - Chair} De. WHC. HDY. {William Hardy} 1/HP.24.3.34. J.3. Gearbox. We should like to take advantage of the reduced torque on the J.3. compared with Vulture(Experimental 6 CYL OHV LONG STROKE / Aero Engine) to save some weight in the 3rd motion shaft of the box for the J.3. car, and we send herewith N. Sch.4021 which shows a shaft with increased diameter of bore. HDY. {William Hardy} | ||
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).