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).
Diagram and calculations for the direct foot to rear brakes linkage.
| Identifier | ExFiles\Box 83\2\ scan0286 | |
| Date | 7th March 1938 | |
| MEMO. 1/7.3.38. 3. DIRECT FOOT TO REAR BRAKES. <- P LBS FROM SERVO CAM LEVER F CROSS SHAFT B C D IDLER LEVER <- R LBS TO REAR BRAKES R = P x F/B x C/D ORIGINAL SCHEME - R = P x 2.8125 / 2.625 x 2.5 / 3.375 = 0.793 P 1ST CHANGE - R = P x 2.8125 / 2.625 x 3.375 / 3.375 = 1.07 P 2ND AND 3RD CHANGE - R = P x 2.8125 / 3.25 x 3.375 / 3.375 = 0.865 P | ||