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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
  
  


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