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).
Calculation comparing the unit pressure on the RR. servo shoes to the Hispano servo.

Identifier  ExFiles\Box 30\6\  Scan171
Date  12th July 1923 guessed
  
contd:-

-2-

Calculations show that the unit pressure on
the RR. servo shoes is approximately 1/5 times the unit
pressure on the Hispano servo.

Hs.{Lord Ernest Hives - Chair}
  
  


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