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 torsional stiffness of a Phantom III shock damper rubber connecting tube ball pin.
| Identifier | ExFiles\Box 151\2\ scan0327 | |
| Date | 17th February 1937 | |
| PHANTOM III SHOCK DAMPER RUBBER CONNECTING TUBE N SCH 4880 17-2-37 TORSIONAL STIFFNESS OF BALL PIN RUBBER PADS F 89077 ANGLE OF TWIST - DEGREES TORQUE - LB.FT. | ||