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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).
Successful bench test of a magneto speedometer and drive, with a suggestion for further testing on an aeroplane.

Identifier  ExFiles\Box 34\2\  Scan037
Date  30th March 1917
  
To R.{Sir Henry Royce} from EFC.
c. to J.{Mr Johnson W.M.}
" " By.{R.W. Bailey - Chief Engineer}
" " EH.
" " EP.{G. Eric Platford - Chief Quality Engineer}

EFC5/AT30.3.17.

X.2238.- MAGNETO SPEEDOMETER E.10560 & MAGNETO SPEEDOMETER Drive E.10854.

With reference to the above experiment we understand from Mr. Hives that this can be considered fully O.K. on the bench test of the engine. He suggests that this requires testing on an aeroplane, and we would like Mr. Royce to say whether one of these shall be sent to the Admiralty for test in the air.

EFC.
  
  


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