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).
Blueprint comparing 4 inch and 7 inch stroke designs with associated measurements.

Identifier  ExFiles\Box 170\2\  img024
Date  7th May 1931
  
1650
7 1/2 ARM.
640# = 1"
OG - Special
To off Identum,
4" STROKE
300
250
200
150
100
57
7" STROKE
250
200
150
100
60
32
30
D.Faraday 7.5.31
  
  


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