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).
Bar chart comparing critical air temperatures for spring tensioned versus positively tensioned fan belts.

Identifier  ExFiles\Box 24\5\  Scan244
Date  2nd July 1938 guessed
  
19 E.X. 62 M.P.H.
No BONNET VENTILATION
GRAPH V.{VIENNA}
COMPARISON OF SPRING TENSIONED FAN AND FAN BELT TENSIONED POSITIVELY.
CRITICAL AIR TEMP
10°C
20°C
30°C
40°C
SPRING TENSIONED
40.5
BELT TIGHTENED CHOC à BLOC
44.5
  
  


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