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).
Specification sheet and photographs for a Lodge 741 spark plug.

Identifier  ExFiles\Box 162\2\  img007
Date  23th February 1940 guessed
  
LODGE 741
REACH - 0.75"
LENGTH OF BARREL - 0.937"
LENGTH OF INSULATOR - 2.250"
INSULATOR MATERIAL - SINTOX
REMARKS: COOLER PLUG THAN FORMER LODGE TESTED FOR TRIAL ON B60 & B80.
  
  


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