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).
Concluding summary on the practical difficulties and future research related to incorporating a twin inlet valve head in an engine.
| Identifier | ExFiles\Box 134\2\ scan0065 | |
| Date | 11th July 1936 guessed | |
| -5- Summarising the position, we see that there are practical difficulties in the way of incorporating a twin inlet valve head in the main engine, and further research will have to be done on a single inlet head modified as noted above, before the position is absolutely clear, but it would appear that the head promises extremely well, and if it lives up to its promise, would be quite a good proposition. Hs{Lord Ernest Hives - Chair}/J.L.Edwards. | ||