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).
Steering ratios for the 20/25 model in comparison to a Cadillac and car 21-G-IV.
| Identifier | ExFiles\Box 5a\4\ 04-page165 | |
| Date | 28th November 1934 | |
| To Sg.{Arthur F. Sidgreaves - MD} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X5840 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}16/KW.28:11:34. 21-G-IV. Replying to Sg{Arthur F. Sidgreaves - MD}4/E.27.11:34. The present standard 20/25 steering ratio is 12 1/2 to 1. 21-G-IV is just over 14 to 1. We know that from Hancock's remarks he is comparing the 20/25 with the Cadillac, which is 23 to 1 overall ratio. In effect, he would rather have a slightly lower ratio than the steering we have given him, his object being to get still further immunity from road shocks. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||