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).
Front axles, discussing high-speed wobble and steering geometry on the 20 HP model.
| Identifier | ExFiles\Box 29\1\ Scan290 | |
| Date | 27th April 1927 | |
| To DA.{Bernard Day - Chassis Design} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}4/LG27.4.27. X457 FRONT AXLES. X5820 X457 1. With reference to DA{Bernard Day - Chassis Design}2/M25.4.27. We agree with 1. 2. and 4 of the points you raise. With regard to high speed wobbles, we do not think that the lightened type axle is really better than the old type axle in this respect, possibly owing to the fact that the steering is lighter with it and so there is less opposition to wobbles. Other things being equal, we should expect the out-of-centrepoint to reduce wobbles. You will doubtless be altering the geometry of the 20 HP. steering at the same time as the new axle. We consider this is very vital. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||