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 showing the variation of friction with temperature for Ferodo V.M. 30 friction material.
| Identifier | ExFiles\Box 87\5\ scan0036 | |
| Date | 18th October 1934 | |
| FERODO V.M. 30 FRICTION MATERIAL VARIATION OF FRICTION WITH TEMPERATURE FIGURES TAKEN ON 25 H.P. SERVO MOTOR DRUM SPEED 44 R.P.M. END LOAD 700 LBS COEFF. OF FRICTION TEMPERATURE °F.{Mr Friese} 1ST RUN 2ND RUN 3RD RUN 4TH RUN 5TH RUN F.J.H. 18.10.34 | ||