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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).
Testing and approval of modified Lodge sparking plugs for the Phantom model.

Identifier  ExFiles\Box 162\6\  img099
Date  29th March 1926
  
To BY.{R.W. Bailey - Chief Engineer} from Hs.{Lord Ernest Hives - Chair}

X4425

Hs{Lord Ernest Hives - Chair}6/LG29.3.26

LODGE SPARKING PLUGS. X4425 X.8970

With reference to the detachable porcelain sparking plugs which we are using as standard on the Phantom. Messrs. Lodge recently supplied us with a number of plugs of a similar type in which the insulator had been slightly modified. It was their desire that they should supply us with plugs of this modified type as soon as possible.

We have carried out tests and we see no objection to the modified insulator. The number of the modified plug is C.150.

Hs.{Lord Ernest Hives - Chair}
  
  


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