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).
Radiator efficiency, comparing airflow at slow speeds for lorries versus higher speeds for cars on mountain passes.

Identifier  ExFiles\Box 24\5\  Scan087
Date  18th June 1925 guessed
  
contd :- -2-

because in climbing mountain passes the lorries would be travelling at a very slow speed - 3 or 4 m.p.h. With a car however, travelling 20 to 30 m.p.h., the speed of the car would force the air through the radiator at all points.

A large number of tests have been made with the object of proving whether the whole of the radiator matrix is used efficiently - our tests show that it is.

H.S.
  
  


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