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).
Requesting feedback on a change of servo material from Cotton A to Ferodo RAD.13.
| Identifier | ExFiles\Box 141\3\ scan0171 | |
| Date | 9th March 1933 | |
| x719 Hd.{Mr Hayward/Mr Huddy} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} N. c. to J.L.E. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}11/KT.9.3.33. SERVOS. We have recently changed the servo material on both chassis to Ferodo RAD.13. The reason for this was that the Cotton A.{Mr Adams} was found to disintegrate rapidly with consequent inefficiency of the brakes. We should be glad if you would let us have your opinion of this material, that is, whether the servo's behaviour is consistent after cars have been in the customers hands for some time. A report on the condition of the material after running would be of use to us. Do you prefer the new material to the original cotton? Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||