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).
Request for a report on the testing of tungsten magneto contact breaker contacts in an aero engine.

Identifier  ExFiles\Box 35\5\  scan 049
Date  13th December 1918
  
EH. from EFC.

EFC/AT13.12.18.

X.2894.-MAGNETO CONTACT BREAKER CONTACTS In TUNGSTEN.

With reference to the above contacts fitted by Mr. Coverley as follows.-

L.454 Tungsten contacts fitted to Watford magneto No.4121.
No.425 Tungsten contacts fitted to Watford magneto No.4010.

you have had these running in an aero engine and we shall be glad to receive your report as to how these have stood the test.

EFC.
  
  


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