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).
Note by Mr. Nutt on engine testing procedures, including magnafluxing, brake HP tests and expected engine life.

Identifier  ExFiles\Box 27\3\  Scan238
Date  6th October 1939 guessed
  
31.

and wear measurements. All steel parts are magnafluxed.

All parts must be in good condition or test must be repeated.

Note by Mr.Nutt.

All tests at actual brake HP regardless of atmospheric conditions and must be at least up to the specified ratings.

Wrights maintain that an engine which passes this test satisfactorily is good for 500 hours between overhauls, and a life of 5000 hours.
  
  


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