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).
Vehicle suspension dynamics, ride control, and the performance of shock absorbers on long-wave road undulations.
| Identifier | ExFiles\Box 170\2\ img157 | |
| Date | 17th June 1933 guessed | |
| 9 smoothed into perfect sin waves five or six years ago on the assumption that "Stop Look & Listen" signs would hold the public to 20 mph. Nowadays electric warning signals which show a flashing red light, replace the old gallows frames on every crossing of consequence and if the light is out the congregation of 100 per- centers takes the crossing all out, which means 65-80. The beautiful sin waves then work as though they had studied Powell, and large gaping holes in the roof mark the exit of the owner & his wife from the rear seat. For this effect an inertia weight at the rear supplementing the ride control supplies a long felt want. A study of Powell shows that on these long waves only a locked shock absorber can do the job because although the throw is violent the relative velocity between frame & axle is so low that the ordinary hydraulic action is negligible. (How I do run on!) The above are intended as just thoughts expressed clumsily enough on | ||