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 plotting performance coefficients for various vehicle drive systems.

Identifier  ExFiles\Box 170\3\  img169
Date  8th February 1938 guessed
  
COEFFICIENT
.5 .6 .7 .8 .9 1.0
NORMAL ACC. IN GEARS.
THEORETICAL 2-WL DRIVE
WL DRIVE
  
  


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