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).
Engine valve bounce at specific revs and poor fuel consumption issues.
| Identifier | ExFiles\Box 83\4\ scan0002 | |
| Date | 18th October 1935 | |
| -2- Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}1/KW.18.10.35. We should like to know the revs. at which the valves bounce. If this is 4,500, we have arrived at rather a satisfactory compromise, as this will prevent the engine being over-revved with a standard axle ratio. The consumption seems very bad and we are sending out some more needles to you on which we should like your opinion. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||