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).
Standard for Phantom III and 25/30 HP steering gears.
| Identifier | ExFiles\Box 106\3\ scan0425 | |
| Date | 23th November 1936 | |
| 550 To RHC.{R. H. Coverley - Production Engineer} from Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} c. to Hs.{Lord Ernest Hives - Chair} c. to Mr.Brook. c. to Mx.{John H Maddocks - Chief Proving Officer} Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}4/AP.23.11.36. Ph.III. and 25/30 STEERING GEARS. We are sending over to Mr.Brook's Department a 25/30 HP. Steering which we have built up in accordance with our recommendations for set up load. We suggest that you should retain this gear as a standard of comparison to which all Production Ph.III. and 25/30. gears should be set. The gear is set to the high limit of 1 1/2 lbs. on the steering wheel rim which is the figure we prefer. Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} | ||