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).
Steering adjustments and the effects of low-pressure tyres on car performance.
| Identifier | WestWitteringFiles\L\2July1924-September1924\ Scan54 | |
| Date | 11th September 1924 | |
| R.R. 403A (40 H) (SL 42 12-7-23). J.H., D.{John DeLooze - Company Secretary} EXPERIMENTAL REPORT. Expl. No. REF: Hs{Lord Ernest Hives - Chair}2/LG11.9.24. stationary and would be worse with low pressure tyres. We are running an experimental 20 HP. car with the pivots set so that the point of contact is .5" off centre-point, which is standard on the 40/50 HP. Our impression so far with this steering is that it is an improvement. We do not need so much damping friction and we are not so dependent on the weak buffer springs to avoid road shocks. When we get an opportunity we will try the low press-ure tyres on this car. We are in favour of a slightly lower geared steering. We do not think the drop of 10 to 15% will produce any ill effects. It does definitely reduce the effort to steer the car at low speeds. There is a 40/50 HP. steering being made with the same percentage reduction as we have tried on the EAC. We are running all tyres with considerably less pressure than we used to - this causes a heavy steering at very low speeds. Hs.{Lord Ernest Hives - Chair} | ||