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).
The estimated weight of various brake components and a discussion on master cylinder design.
| Identifier | ExFiles\Box 121\1\ scan0261 | |
| Date | 4th April 1940 | |
| - 4 - Cont'd.{John DeLooze - Company Secretary} 2 4.4.40. Estimated Weight of Brake Equipment. Brake Assemblies .. .. .. .. .. 13-lbs each approx. 52-lbs for the four. Fittings, Copper Pipes and hoses .. .. .. .. .. .. .. 4-lbs. Weight of 7/8" Master Cyl. as suggested for Experiment- al vehicle.. .. .. .. .. .. .. 1 1/2 lbs each. Estimated weight of twin 5/8" Master cyl. for production if made in light alloy as suggested .. .. .. .. .. .. .. 1 1/2 lbs per pair. 15. Master Cylinders. The question of master cylinders and tandem cylinders was ventilated. It was suggested that the ideal way to tackle the job would be for Lockheed's to design a master cylinder in light alloy for Rolls Royce's particular application and it was expected that this would be much more compact and easier to instal than the twin cylinders. Rm.{William Robotham - Chief Engineer} | ||