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).
Graph analyzing steering wheel movement amplitude versus frequency, with annotations on different suspension types and their effects.
| Identifier | ExFiles\Box 173\4\ img241 | |
| Date | 9th March 1936 | |
| Amplitude of Steering Wheel Movement FREQUENCY OLLEY MAR 9/36 DUBONNETS give much of A, little c B Good on road with a little friction in kingpins. WISHBONES with stiff steerings have little of A, much of B. Fight badly till steering is 'tuned down' which makes A worse on the drums, but eliminates B. Typical curve of wheel fight. Start of Low frequency. Low freq. fight. Almost a low speed wobble. Successful wishbone steerings are tuned to give a natural freq. of wheelflap somewhere in this-range (Present observations) Max Wheel Hop. Have you tuned up your steering to give a frequency in this range? | ||