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 torque against degrees of deflection from a torsional test on a 10 inch clutch for chassis B20AW.
| Identifier | ExFiles\Box 130\3\ scan0170 | |
| Date | 22th January 1941 | |
| TORSIONAL DEFLECTION TEST ON 10" CLUTCH FROM DEMONSTRATOR (CHASSIS N° B20AW) 22/1/41. FRICTION 27 LB.FT. FRICTION 17 LB.FT. TORQUE LB. FT. DEFLECTION - DEGREES. TEST BY Rm{William Robotham - Chief Engineer}/CLm{D. D. Clapham} Rm{William Robotham - Chief Engineer}/G.B. 22/1/41 Rm{William Robotham - Chief Engineer}/G.B. 22/1/41. | ||