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).
Car handling characteristics, focusing on skidding, suspension rebound, and tyre grip.
| Identifier | ExFiles\Box 5a\3\ 03-page132 | |
| Date | 28th November 1931 guessed | |
| (4) was done. Peppar reported that the car's speed increased to over 70 M.P.H. during the skid, which is identical to the remarks of Hs.{Lord Ernest Hives - Chair} I believe. I have been turning this matter over in my mind, and as the result of sitting in the rear of the car, being driven at all speeds, I have come to the following conclusion. With low rated springs there is too much rebound action, which relieves the load on the ground of the rear axle, that is, with shock dampers fitted to give comfortable riding at slow and medium speeds, my contention therefore, is that the skids are produced at the moment when there is no load on the axle due to the rebound. The initial setting of the low rating springs in my opinion, is responsible for the rebound effect when travelling at high speeds, and calls urgently for progressive dampers. With regard to tyres. When the tyres are new and have a good tread, the non-skidding qualities are higher, and the above occurrence is less likely to happen, but when the gripping qualities, or when the tread of the tyre, has worn, you have lost the safety, and the above may happen at any time on a wet surface. I would be very pleased if you would give me your version of whether you think that I am correct in the views I have stated. G.W.Hancock. G.W.H. | ||