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).
Merits of a detachable engine head versus an over-head valve engine.
| Identifier | ExFiles\Box 127\1\ scan0067 | |
| Date | 10th February 1920 | |
| Contd. -2- Hs{Lord Ernest Hives - Chair}1/LG10.2.20. ----------------- excellent proposition. The head would be such a simple piece that any Chauffeur would be able to decarbonise the engine in half-a-day. With a over-head valve engine we do not consider the detachable head is so essential. It might be worth while to bring the Packard to W.W. at the same time as we bring the Hawk-Northcliffe. Hs.{Lord Ernest Hives - Chair} | ||