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Request for a new Spectre camshaft with two keyways to achieve a more advanced timing.


Identifier  ExFiles\Box 93\5\  scan0013
Date  9th February 1935
  
To RHC. {R. H. Coverley - Production Engineer}
+307
Hs {Lord Ernest Hives - Chair} /Smth.4/KW.9.2.35.

Spectre(Codename for Phantom III) Camshaft E.86371.

We wish to try a timing which is 6° more advanced than the present one. One tooth on the camshaft wheel is worth 12°, so we shall have to provide an alternative keyway in the shaft. Will you make us a camshaft to E.86371, but with two keyways as on Hs. {Lord Ernest Hives - Chair} 1768.

Hs {Lord Ernest Hives - Chair} /Smth.
  
  
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).


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