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).
Conceptual sketch and notes proposing engine modifications, including ignition control and manifold design.
| Identifier | ExFiles\Box 50\3\ Scan179 | |
| Date | 21th June 1921 | |
| 3. Primer No governor, so that control from the distributor shaft could be done away with and it would only be necessary to transfer the ignition control to the R.H. side of the engine. No extra oil if possible to get away from it by use of a variable pressure pump or some such scheme. The inlet manifold in aluminum, cast in one with its exhaust jacket. Couldn't it be done experimentally don't you think? Oy June 21 | ||