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).
Specifications for internal expanding brake linings and braking distribution.
| Identifier | ExFiles\Box 125\1\ scan0049 | |
| Date | 18th July 1930 guessed | |
| -4- Internal Expanding. Lining 3/16" thick. Distribution of braking - 55% Front, 45% Rear. (50-50 is now American standard). (Hand brake lever expands rear brake shoes). Oy. | ||