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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).
Confirming the discontinuation of leaded fuel for type tests, to be substituted with a 50/50 Benzol mixture.

Identifier  ExFiles\Box 27a\4\  Scan273
Date  23th November 1933
  
Mr. Hives
C. Wery Es.
C. Harvey-Bailey Esq.
C. Mr. Jaques.

8128

Rg{Mr Rowledge}/Tsn.5/DM.{D. Munro}23.11.33.

Lead Fuel on Type Tests.
--------------------------
This is to confirm asking Winfield to discontinue using leaded fuel on the two type tests in hand and future ones, for the last 5 minutes and power curves etc., and to substitute 50/50 Benzol mixture.

We have obtained Mr. Jaques' agreement to this.

Rg{Mr Rowledge}/Tsn.
  
  


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