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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).
Timing test results for a Watford EW6 Magneto No.100082.

Identifier  ExFiles\Box 65\3\  scan0198
Date  14th February 1928
  
X7791
14.2.28

WATFORD EW6 MAGNETO NO.100082.

TIMING TESTS.

Primary gap .012"
Advance. Retard.
Make. 3º 63º Range 60.5º
Break. 99º 160º Make ratio
Make 182º 243º = .547
Break 283º 343º


Primary gap .008"
Advance. Retard.
Make. 0º 60º
Break. 101º 162º Make ratio
Make 179º 240º = .575
Break 285º 345º


Primary gap .016"
Advance. Retard.
Make. 5º 65º
Break. 97º 158º Make ratio
Make. 181º 242º = .540
Break. 284º 344º
  
  


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