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).
Letter discussing front wheel wobble, gyroscopic effects, and the impact of reducing toe-in.
| Identifier | ExFiles\Box 29\1\ Scan180 | |
| Date | 10th February 1926 | |
| Oy2-E-21026 -2- February 10, 1926. This "precesses" the gyroscope and gives the necessary alternate impulses to the system to increase both the tramping effect and the accompanying wobble. Whatever the explanation he says that reducing the toe-in to almost zero not only cancels the wobble in every case, but actually reduces the wear on the front tires. I think you will probably want to try this if you have not done so already. Yours very truly, MO/E Maurice Olley [Handwritten Note] "With reference to the attached note from Oly on wheel wobble, we have investigated the effect of toe in on the front wheels, we have proved any excessive toe in will make wobbles worse but no adjustment of the wheels will eliminate wobbles. In spite of the fact we frequently get quoted to us cars which are said to be free from wobble. (This statement that all cars fitted with front wheel brakes have trouble with wobble is interesting & confirms our experience.) | ||