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).
Secret report on a cracked coiled copper pipe causing a loss of damping in a 15,000-mile test car.
| Identifier | ExFiles\Box 108\3\ scan0181 | |
| Date | 7th April 1938 | |
| SECRET To Sg.{Arthur F. Sidgreaves - MD} from Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} c. Hs.{Lord Ernest Hives - Chair} c. By.{R.W. Bailey - Chief Engineer} c. Da.{Bernard Day - Chassis Design} c. RHC.{R. H. Coverley - Production Engineer} 600a Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux}2/AP.7.4.38 26.O.VI. 25/30 - 15,000 miles test car. It was found on returning to Derby after your test of this car that the lack of damping in the 'hard' position was due to a crack in the coiled copper pipe from the damper governor unit, resulting in a gradual loss of oil and maximum pressure. The trouble has developed gradually since the car returned to England. With the fault rectified the damping is restored to normal and appears sufficient. We are standardising a flexible pipe in place of the coiled copper pipe for production as on the 25/30. Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} | ||