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).
Methods to prevent rear axle dithering and the effects of tyre pressure on ride quality.
| Identifier | ExFiles\Box 125\2\ scan0158 | |
| Date | 22th November 1934 guessed | |
| - 2 - one chief feature to keep the rear axle from dithering. In our efforts to do this, hard riding has been the result. The Cadillac method of anchoring the roll rod direct on to the axle at the extreme ends (not as we did, on to the dampers) has taught us that we can get the road holding qualities, i.e.- keeping the axle from dithering by the roll rod, and with lesser poundage of shock dampers, produce a softer riding car. For town work the roll rod does all the damping that is necessary and does prevent that dithering of the axle which we have not been able to overcome with our softest riding. Tyres pressures. We tried the Cadillac with rear tyre pressure up to 45 lbs. There is an improvement in steadiness of the car when cornering. The higher tyre pressure spoils the riding. It is definitely hard at low speeds. G.W.H. | ||