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).
Specification alteration for shock absorber loadings on the 25 HP model with low rating springs.
| Identifier | ExFiles\Box 105\3\ scan0187 | |
| Date | 10th June 1931 | |
| 85520. To By.{R.W. Bailey - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 5/KT.10.6.31. X5410. We have altered the specification for the shock absorber loadings on the 25 HP. when low rating springs are fitted. We recommend the following loads for all cars sprung with the front springs having 4.5" initial deflection and the rear springs having 6.4" Front. H.P. 115 lbs. L.P. 90 lbs. High Pressure valve drilled .055" dia leak. Rear. H.P. 115 lbs. L.P. 90 lbs. High Pressure valve drilled two holes .055" dia. and .032" dia. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||