Rolls-Royce Archives
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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).
Secret memo suggesting an increase in the compression ratio for the EAC engine to gain extra power.

Identifier  ExFiles\Box 19\7\  Scan080
Date  6th October 1924
  
X. 790

To Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce}
c. tp CJ. BY.{R.W. Bailey - Chief Engineer}

S E C R E T.

R8/M6.10.24.

E.A.C.11.

COMPRESSION RATIO. X.790.

Since we have now got the EAC. engine so very smooth, I should favour another quarter on the compression so as to get the extra power that this would give.

R.{Sir Henry Royce}
  
  


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