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 rating test on a gearbox fabric coupling.
| Identifier | ExFiles\Box 94\2\ scan0041 | |
| Date | 7th October 1936 | |
| GEAR BOX FABRIC COUPLING TORSIONAL RATING TEST G76576 HARDY FABRIC 7-10-36 ANGULAR MOVEMENT - DEGREES TORQUE - LB FT. LOADING RELEASING 0 TO 500 LB FT TO 0 0 TO 500 LB FT TO -300 LB FT TO 0 Y-AXIS: 2.5, 2.0, 1.5, 1.0, 0.5, -0.5, -1.0, -1.5 X-AXIS: -300, -200, -100, 100, 200, 300, 400, 500 | ||