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).
Continuation page of a report on indicator valve performance and volumetric efficiency.
| Identifier | ExFiles\Box 22\1\ Scan135 | |
| Date | 12th July 1923 guessed | |
| contd:- -2- In this position one would say that the indicator valve is likely to get the full benefit of any detonation set up. We are still not entirely satisfied with the vol. efficiency at low speeds as given by the Indicator, but believe they are worth recording. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||