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 angular deflections from model crank torsion tests.
| Identifier | ExFiles\Box 85\5\ scan0089 | |
| Date | 2nd January 1935 | |
| HS{Lord Ernest Hives - Chair} 1580 / 1 MODEL CRANK TORSION TESTS 2-1-35 ANGULAR DEFLECTIONS HS{Lord Ernest Hives - Chair} 1580 LONG CRANK PIN HS{Lord Ernest Hives - Chair} 1581 SHORT CRANK PIN DEFLECTION - DEGREES TORQUE - LB-FT I D A C B MB | ||