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).
Diagram from a Phantom III Steering Rocker Shaft Test showing the distortion of splines under torque.
| Identifier | ExFiles\Box 95\1\ scan0469 | |
| Date | 22th December 1937 | |
| P III STEERING ROCKER SHAFT TEST. DIAGRAM SHOWING DISTORTION OF SPLINES. F.83341. TORGUE. SPLINES TWISTED AT EDGE OR TORGUE ARM. | ||