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 when extra oil would work if controlled by vacuum, plotted against throttle opening.

Identifier  ExFiles\Box 16\1\  Scan077
Date  29th March 1915 guessed
  
Inches of Mercury
2000
1800
1600
1400
1200
Extra Oil
1000
800
Only slots open
600
400
Slots
1"
2"
3"
4"
5"
6"
7"
Throttle opening
Curve showing when extra oil would be working if it was controlled by the vacuum
Full open
  
  


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