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).
Extract from a letter detailing three different fuel specifications with handwritten annotations.
| Identifier | ExFiles\Box 27a\4\ Scan345 | |
| Date | 21th November 1934 | |
| X1282 Extract from Mr. Banks' letter dated 21st Nov.1934. Fuel Specifications. (1) 10% "680" spirit 90% Aviation petrol to D.T.D.224 spec. 100 + 4 c.c.'s of tetraethyl lead (not fluid) per gallon. 2nd (2) 20% "680" spirit 50% Benzol 30% Methanol 100 + 2 c.c.'s of lead (not fluid) per gallon. 1st (3) 20% "680" spirit 60% Benzol 20% Methanol 100 + 2 c.c.'s of lead (not fluid) per gallon. 3rd | ||