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).
Trial of a new steering gear for the Spectre model to correct oversteering.
| Identifier | ExFiles\Box 95\1\ scan0158 | |
| Date | 10th December 1934 | |
| x350 GRY{Shadwell Grylls} Please follow this up Rm{William Robotham - Chief Engineer} To RHC.{R. H. Coverley - Production Engineer} from Da.{Bernard Day - Chassis Design} Da.{Bernard Day - Chassis Design}2/HP.10.12.34. c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} SpectreCodename for Phantom III Front Suspension and Steering. We understand that Experimental Department would like to try a steering on SpectreCodename for Phantom III which definitely tends to straighten out on corners instead of being neutral or tending to oversteer. N. Sch.4269 is a layout of such a gear which we had begun to do, suitable for use with the nearly equal link now fitted. It is, of course, quite unfinished, but we believe is clear of all the obstacles so far encountered. The side steering tube clears the oil pump filter by passing underneath it and does not get as far as the cross steering tube. The brake cable in its present or its old position is inside and above the side and cross steering tubes. The side steering tube puts a fair amount of side thrust on the pendulum lever, which will not matter for the experiment we think. If the pendulum lever could be reset so as to push the ball end as far under the frame sidemember as possible, it would improve this. The arrangement would not be suitable for standardisation partly on account of this, and partly on account of ground clearance, but we could make a finished arrangement that would be suitable if the experiment proved successful. As shown, the arrangement uses the existing Rolls-Royce SpectreCodename for Phantom III steering column or the La{L. A. Archer} Salle Marles. In a final arrangement we should probably revert to a steering column with the standard hand of thread. Da.{Bernard Day - Chassis Design} | ||