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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).
Apparatus for indicating pressure in high-speed engines.

Identifier  ExFiles\Box 79\3\  scan0037
Date  2nd February 1921
  
To EFC. from R.{Sir Henry Royce}
c. to CJ.

X.2981

R1/G22.2.21.

X.2981 - RE APPARATUS FOR INDICATING PRESSURE IN HIGH SPEED ENGINES.

I should be glad to know if any attempt has been made to prove the value of the scheme I suggested.

We always desire to know the exact pressures existing during the various parts of the stroke of our engines, to enable us to make progressive improvements.

When I next see you I will give you some further ideas on this subject, which are along the same lines, but another way of indicating the pressure by balancing it at different periods of the stroke.

R.{Sir Henry Royce}
  
  


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