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).
Graph showing the variation of make-ratio with speed for a double breaker ignition distributor.

Identifier  ExFiles\Box 163\7\  img233
Date  14th March 1939
  
DELCO - REMY DOUBLE BREAKER
IGNITION DISTRIBUTOR
CURVE SHEWING VARIATION OF
MAKE - RATIO WITH SPEED
MAKER'S SETTING (.022") AT CONTACTS
MAKE - RATIO
DISTRIBUTOR SPEED (R.P.M.)
Y-AXIS: 20, 30, 40, 50, 60, 70
X-AXIS: 800, 1600, 2400, 3200, 4000, 4800, 5600
SK. 8/4/3
14.3.39
  
  


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