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 of torsiograph results for engine B 80 unit No. 2, operating without a damper.

Identifier  ExFiles\Box 132\1\  scan0130
Date  22th April 1939 guessed
  
SUMMERS TORSIOGRAPH RESULTS ON ENGINE B 80 UNIT Nº 2
WITHOUT DAMPER
AMPLITUDE DEGREES
10½

8



4

ENGINE R.P.M.
FIG. 1
RM{William Robotham - Chief Engineer}/JRS
  
  


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