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).
Graph plotting weight loss against Brake Horse Power (B.HP) for Ferodo M.R. brake lining.
| Identifier | ExFiles\Box 121\1\ scan0321 | |
| Date | 20th September 1940 | |
| FERODO LTD CHAPEL-EN-LE-FRITH TECHNICAL DEPT. REPORT No. FERODO M.R. BRAKE LINING. Y-Axis: LOSS IN WEIGHT PER SQ. INS PER HR. Numbers on Y-Axis: 1, 2, 3 X-Axis: B.H.P. PER SQ: INS OF LINING. Numbers on X-Axis: 1, 2, 3 20 : 9 : 40. | ||