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).
Engine compression ratios and the effect of fuel quality in France on engine detonation.
| Identifier | ExFiles\Box 19\7\ Scan077 | |
| Date | 1st February 1924 | |
| X.790 Extract from R3/M9.2.24. E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C. ENGINE. X.9770 X.9680 COMPRESSION. X.790 I certainly agree that the lower 4.3 will be preferable; fuel in France makes an engine detonate much worse than the English supplies, where also you can use part benzol until better fuels are more universal. We must carefully keep clear of detonations, and incidentally keep a smoother engine. R.{Sir Henry Royce} | ||