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 two design schemes for a crankshaft with performance data.

Identifier  ExFiles\Box 137\4\  scan0350
Date  16th May 1931
  
CRANKSHAFT E55619
SUGGESTED SCHEME
SCHEME 1402
ROLLS - ROYCE LTD
PRINT No
16 MAY. 31
DERBY.
SCHEME 1402 - I PER WEIGHT = 27.1 IN4
CRITICAL SPEED = 4200 RPM [12 WTS]
SUGGESTED - " " " = 12.55 IN4
" " 4600 RPM [12 WTS]
WITH NO BALANCE WEIGHTS 'CRITICAL SPEED' = 5000 RPM
  
  


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