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).
Test log page detailing vehicle braking performance and component measurements.
| Identifier | ExFiles\Box 12\5\ 05-page278 | |
| Date | 14th April 1931 | |
| - 2 - 20 miles braking 40 - 10. every ¼ mile. 6 brakes 70 - 10. Foot Pedal 4¾". Front Toggles 1¾"N.S. 1¾"O.S. 134 Miles. .A.B.Roberts. R.{Sir Henry Royce} Pattinson. 14.4.31. Warm in Shop. Foot Pedal 4¾". Front Toggles 1¾"N.S. 1¾"O.S. | ||