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).
Power curve showing the effects of silent tappets on the Phantom engine.

Identifier  ExFiles\Box 17\6\  Scan253
Date  21th June 1934
  
To E.{Mr Elliott - Chief Engineer}
72060
Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}18/KW.21.6.34.

Here is a power curve showing how the
silent tappets affect the power output of the
Phantom engine.

Naturally these tappets increase the
effective length of the camshaft.

Rockers ??

Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
  
  


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