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).
Table of front and rear wheel suspension movements and spring hysteresis values.
| Identifier | ExFiles\Box 148\1\ scan0141 | |
| Date | 19th March 1939 | |
| -2- Rm{William Robotham - Chief Engineer}/FWK.9/JH.19.3.39 Front Wheel Movements. Bump.limit. Bump cont. Laden. Unladen. Rebound Cont. Rebound limit. N.S. 0 .5" 2.7" 2.9" 3.9" 5.0". O.S. 0 .65" 2.9" 3.1" 4.4 5.5". Rear Wheel Movements. Bump limit. Bump Cont. Laden. Unladen. Rebound limit. N.S. 0 1.5" 4.3" 5.5" 10.8". O.S. 0 1.5" 4.5" 5.6" 10.7". Rear spring hysteresis = 85 lb. Front spring hysteresis = 35 lb. Rm{William Robotham - Chief Engineer}/F.W.Kennington. | ||