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).
Instructions for building and testing Bentley aluminium brake drums with various liners due to scoring issues.
| Identifier | ExFiles\Box 85\1\ scan0239 | |
| Date | 11th November 1936 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} 206 Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}1/AP.11.11.36. BENTLEY ALUMINIUM BRAKE DRUMS. Referring to the drums instructed in Hs{Lord Ernest Hives - Chair}/AFM.{Anthony F. Martindale}12/JH. 12.10.36. in which we call for 3 sets to be fitted to our own cars. Will you please build up one pair of rear drums with Lepaz liners instead of Millenite liners. The liners' size and shrink fit is to be standard i.e. as detailed in GB.2404. They are to be cut from a pair of Lepaz drums now in the Stores. When completed we will put these drums and the front drums with Brimal liners together on one car - probably 1.B.lV. In view of the scoring of the Millenite liners on 6.B.lV. during it's 15,000 miles test, we are having to experiment with new types. Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} | ||