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 Bentley propeller shaft torsion test.
| Identifier | ExFiles\Box 87\3\ scan0015 | |
| Date | 30th October 1934 | |
| BENTLEY PROP SHAFT TORSION TEST WT. OF LOAD TRAY 1.7 LBS RAD OF TORQUE ARM 2FT NS{Norman Scott}3647 ROLLER BRG SLIDING JOINT TORQUE LB FT LOAD LBS CLOCKWISE ANTICLOCKWISE Y-Axis Values: 100, 200, 300, 400, 500 X-Axis Values: 10, 20, 30, 40, 50, 60 | ||