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).
Testing steel ribbed brake drums and a solution for rear brake groans.
| Identifier | ExFiles\Box 12\5\ 05-page293 | |
| Date | 21th May 1931 | |
| - 2 - Hs{Lord Ernest Hives - Chair}/GMH.6/KT. 21.5.31. 6th. Steel Ribbed Brake Drums. Squeaks were equally pronounced with these drums as with the plain steel drums, both front and rear. 7th. To overcome the rear brake groans we have found that a light application of the rear hand brake definitely stops the groans. Hs{Lord Ernest Hives - Chair}/GMH. | ||