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 testing procedures, measurements, and observations from a road test.
| Identifier | ExFiles\Box 12\5\ 05-page262 | |
| Date | 5th March 1931 guessed | |
| - 2 - Immediately on completion of braking. Foot Pedal from dash 5" Front toggles 1" each When cool 4 3/8" Foot pedal and Front toggles 1" each. (3) Brake Hand 70.M.P.H. to 10.MPH. 6 times. distance required to pull up. 203'. 193'. 178'. 190'. 192'. 184'. While hot Foot Pedal 4 1/4" Front toggles 1". When cold Foot Pedal 4 1/4" Front toggles 1" (5) Brake Hand 40.MPH. to 10.MPH. every 1/2 mile for 20 miles. While hot Foot Pedal 4 1/4" Front toggles 1" During the latter part of the test a squeak was noticed from the front and this persisted for the remainder of the run. Measurements after returning to shop. Foot Pedal 4 1/4" Front toggles 1" each. Miles covered 84. Weather conditions same as previous run. A.B.Roberts. R.{Sir Henry Royce} Pattinson. | ||