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 comparing the angular twist of rear springs under applied torque for different vehicle models.
| Identifier | ExFiles\Box 95\3\ scan0080 | |
| Date | 26th April 1935 guessed | |
| DEFLECTION - DEGREES APPLIED TORQUE - lbs-Ft. ANGULAR TWIST OF ONE REAR SPRING UNDER PURE TORQUE APPLIED AT SPRING CENTRE IN PLANE OF AXLES. CADILLAC 66% OF THIS DEFLECTION DUE TO RUBBER SHACKLES AND 33% DEFLECTION OF SPRING. SPECTRECodename for Phantom III PHANTOM CRY | ||