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).
Instructions for a standardised gap and chemical leak test on various magnetos to complete performance specifications.

Identifier  ExFiles\Box 4\5\  05-page312
Date  24th October 1924
  
An easy Copy must be sent to W.O.D. on completion
X.430
ROLLS-ROYCE LTD.
INSTRUCTIONS.
To: E.Y.B
Order No. W.A 89
Customer's No. X 430
Standardised Gap & chemical leak test on
Various magnetos
For the purpose of tentatively completing our specification of magneto performance, a number of magnetos have been tested on our standard gap and chemical leak. (3.0 m.m annular gap and 3.0 microhms leak).
The speed limits between which the magneto sparked regularly were observed to be as follows:-
Signed: contd.
This Sheet must be filed on completion of the work.
  
  


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