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 illustrating the linkage and operation of a Hispano rear brake system.
| Identifier | ExFiles\Box 22\1\ Scan038 | |
| Date | 21th January 1929 | |
| HISPANO REAR BRAKE OPERATION, P., 10., 2.51, 3.22, SERVO., 4.315., 3.375, LEVER AT END OF CROSS SHAFT., OPERATING LEVER ON CROSS SHAFT., 2.73, OPERATING CAM., 2.67, BRAKE DRUM., AER, 21-1-29 | ||