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).
Modifications to Spectre Marles steering on a 25 HP car to reduce joggles.
| Identifier | ExFiles\Box 101\4\ scan0087 | |
| Date | 4th September 1935 | |
| To By.{R.W. Bailey - Chief Engineer} c. to RHC.{R. H. Coverley - Production Engineer} c. to Da.{Bernard Day - Chassis Design} X 50 Dec Hs{Lord Ernest Hives - Chair}/FJH.{Fred J. Hardy - Chief Dev. Engineer}5/KW.4.9.35. SpectreCodename for Phantom III Type Steering on 25 HP. We have decided that the quickest way of evaluating the various modifications to the SpectreCodename for Phantom III Marles steering for reducing joggles is to try them in turn on the 25 HP. car now in France. In this case, when we try the reduced helix cam on the 25 HP. we shall require a longer pendulum lever in order to keep the overall ratio the same. We shall then be able to try both the standard length and the longer length. Will you please detail a lever 9.437 long, for use with SpectreCodename for Phantom III steering on 25 HP. Hs{Lord Ernest Hives - Chair}/F.J.Hardy. | ||