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).
With a sketch of an Allison cylinder head, discussing petrol injection and compression ignition for flying boats.
| Identifier | ExFiles\Box 173\2\ img264 | |
| Date | 4th March 1934 | |
| HSG 1 SG{Arthur F. Sidgreaves - MD} W OR AGE Sg{Arthur F. Sidgreaves - MD} L/R Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer} March 4th /34 NEW YORK. Here is a slightly less futuristic sketch than previously of what I believe the Allison head to be like. The position is shown where they tried the central spark plug. With regard to petrol injection, I feel that, since it can be applied to any engine we make without much alteration, it might be worth some work while the compression ignition is hanging fire as a half way step for flying boats, as the best advantage can be gained with the over lap timing when the altitudes are low. | ||