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).
Safety concern with hydraulic dampers and their limited movement.
| Identifier | ExFiles\Box 55\3\ Scan249 | |
| Date | 14th September 1926 | |
| To DA.{Bernard Day - Chassis Design} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X235 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG14.9.26. HYDRAULIC DAMPERS. We notice on N.sch.2262 that the hydraulic dampers only allow for ¼" free movement of the spring below its normal rebound position when loaded with the axle before the piston fouls the end of the cylinder. We wonder whether it is not possible to increase the factor of safety at this point? A failure of a front shock absorber might be rather serious when we fit balloon tyres as we rely on this feature to eliminate high speed wobbles. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||