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).
Graph showing the A.S.T.M. distillation curves for three different aviation gasolines.
| Identifier | ExFiles\Box 150\1\ scan0221 | |
| Date | 30th January 1936 guessed | |
| FIG. 3. A.S.T.M. DISTILLATION OF AVIATION GASOLINES. TEMPERATURE °F 300 275 250 225 200 175 150 125 100 PER CENT CONDENSED. 0 20 40 60 80 100 100 OCTANE FUEL (45% COMMERCIAL ISO OCTANE IN AVIATION GASOLINE) TYPICAL AVIATION GASOLINE 40% ISOPROPYL ETHER IN AVIATION GASOLINE | ||