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).
Schematic diagram of a brake linkage system for model 5 B IV, including lever lengths and ratios.
| Identifier | ExFiles\Box 82\3\ scan0010 | |
| Date | 18th May 1934 guessed | |
| HS{Lord Ernest Hives - Chair} / 1586 PEREGRINE MULTIPLATE SERVO 35° CAMS 1.250 1.750 32.5° 2.750 3.3 5.750 LENGTHS OF NEW LEVERS UNDERLINED 12" DIA DRUMS BRAKE LINKAGE FOR 5 B IV OVERALL RATIOS PEDAL TO FRONT 10 PEDAL TO REAR 11 } 21 SERVO TO FRONT 7 SERVO TO REAR 8 PRESENT BENTLEY LENGTH TO SUIT PER. SERVO C. SHAFT 6.5 3.875 2.062 1.8 3.4 2.5 4.5 13.350 1.187 1.725 2.000 1.875 1.625 1.1875 30.5° 3.5 | ||