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 showing top and bottom water temperatures under various bonnet configurations at 62 MPH.

Identifier  ExFiles\Box 14\7\  Scan021
Date  2nd July 1930 guessed
  
GRAPH III. STANDARD. REAR BONNET SHUTTERS OPEN. FRONT UNDERSHIELD OFF. FRONT BONNET SHUTTERS OPEN. ALL SHUTTERS OPEN. LOUVRED BONNET. LOUVRED BONNET FRONT FAN OFF. TOP WATER TEMP. BOTTOM WATER TEMP. SPEED 62 M.P.H. ATS. TEMP 20°C. 19 EX. 14 x 52 AXLE. WT 48 CWT EMPTY. STANDARD 6 m/m 7 1/2 m/m TUBES. MATRIX AREA. CAR RUN UNTIL TEMPS BECOME STABILISED.
  
  


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