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).
Brake test results for experimental models 22-EX and 19-EX, detailing stopping distances and component measurements.
| Identifier | ExFiles\Box 12\5\ 05-page286 | |
| Date | 21th April 1931 | |
| HS{Lord Ernest Hives - Chair} r7360 BRAKE TESTS. 21.4.31. 22-EX. Ribbed drums fitted to front Foot Pedal 4¾". front Toggles ⅜" OS. ⅜" NS.{Norman Scott} Cold. 7 brakes from 70 - 10 1st brake 210 ft. 7th Brake 235 ft. measurements immediately after last brake Foot Pedal 5". After measuring stopping distance F.P. 5⅜". 65 miles. 19-EX. Cold F.P. 5⅜". Front Toggles ¼". 7 brakes 70 - 10. 1st brake 262 ft. 7th brake 360 ft. Foot Pedal immediately on stopping 4¾". after measuring stopping distance 5¼". 65 miles. | ||