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).
High speed steering wobble experiments and the relationship to tyre pressure.
| Identifier | ExFiles\Box 28\4\ Scan278 | |
| Date | 17th August 1925 | |
| To hs.{Lord Ernest Hives - Chair} from DA.{Bernard Day - Chassis Design} fus7 DA{Bernard Day - Chassis Design}1/M1 7.8.25. HIGH SPEED STEERING WOBBLE EXPERIMENTS. X.457 X.3538 We understand from R.{Sir Henry Royce} that there is a report on the results of tests with different tyre pressure, but so far we have not had a copy. We should very much like one. Mr. Royce has quoted us some figures from memory and if they are correct the road speed of the wobbles appears to follow the square root of the tyre pressure, which we make out to correspond exactly with the period of the front axle oscillating on the tyres. We should like to verify this. DA.{Bernard Day - Chassis Design} | ||