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 results of a torsional deflection test on a 10-inch clutch disc.
| Identifier | ExFiles\Box 130\3\ scan0188 | |
| Date | 4th March 1941 | |
| 4/3/41 TORSIONAL DEFLECTION TEST ON 10" CLUTCH DISC. DISC A STOP PIN SHOULDER DIM. .154/.157" ONE .015" SPACER ON FLYWHEEL SIDE OF HUB FLANGE RED SPRINGS. FRICTION LOOP DEPTH (RR TEST) DRIVE 7 LB. FT. OVERRUN 5 LB. FT. OVER-RUN DRIVE TORQUE LB. FT. DEFLECTION - DEGREES. TESTS BY RH{R. Hollingworth}/CLM.{D. D. Clapham} Rm{William Robotham - Chief Engineer}/G.B. | ||