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).
Test results for car 14-EX fitted with 1400 lbs rear springs and modified hydraulic dampers.
| Identifier | ExFiles\Box 66\1\ scan0152 | |
| Date | 11th November 1927 | |
| X8040 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}5/LG7.11.27. 14-EX CAR. X235 X8410 This car was tested fitted with 1400 lbs. rear springs and hydraulic dampers with 60 lbs. up and down fixed loading and a viscosity factor rising to 250 lbs. load at the ball pin with a maximum piston velocity of 15" per sec. The general impression was that the results were very much better than the standard damper setting at 100 lbs. fixed loading, this being the load required to make the car controllable at high speeds. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||