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).
Hardening of external splines on the Wraith rear axle wheel driver.
| Identifier | ExFiles\Box 7\3\ X 602 Axle Rear-page38 | |
| Date | 12th April 1937 | |
| By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} 602 Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}10/R.12.4.37. WRAITH REAR AXLE. With regard to N. Sch.5059 showing the usual type of wheel driver in the P.III centre case Wraith rear axle, we think that the external splines should be hardened. This will conform with the latest Bentley wheel drivers which are giving excellent results in France. We think when these are hardened we shall be free from com-plaints of wheel driver knock. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||