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).
Technical memorandum regarding the leak hole and uncontrolled valve on 30.G.VII front dampers.
| Identifier | ExFiles\Box 109\4\ scan0171 | |
| Date | 26th July 1939 | |
| 666a To Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} from Rm{William Robotham - Chief Engineer}/HFP. Hotel de France, Chateauroux, Indre, France. Rm{William Robotham - Chief Engineer}/HFP.5/MH.{M. Huckerby}26.7.39. 30.G.VII FRONT DAMPERS. The leak hole for the above dampers is drilled through the aluminium rivet attaching the replenishing valve spring to the replenishing valve. The front dampers on 30.G.VII were set to have an initial load of 100 lbs. As control pressures in excess of 40 lbs/sq.in. are required to give loads greater than 100 lbs. the valve is, in effect, uncontrolled. Rm{William Robotham - Chief Engineer}/HFP. | ||