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).
Instructing a production change to the Phantom III gearbox selector spring to prevent gears coming out on over-run.
| Identifier | ExFiles\Box 94\2\ scan0068 | |
| Date | 17th November 1936 | |
| 328 To By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}, c. Mx.{John H Maddocks - Chief Proving Officer} c. HS.{Lord Ernest Hives - Chair} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}5/AP.17.11.36. PHANTOM III. GEARBOX. We have found that there are occasions when a slightly stronger selector spring will prevent a gear coming out on the over-run. Will you please instruct for Production a top and 3rd. gear selector spring to G.56309 instead of G.82221. We suggest this is fitted to all cars before they leave the Factory. Less than five minutes are required to effect the change. The increased change speed effect is not noticeable and much trouble may be saved by this alteration. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||