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).
Graphs showing the results of cooling system tests, examining the effect of fan configuration, speed, and ventilation.

Identifier  ExFiles\Box 12\7\  07-page103
Date  2nd July 1930
  
GRAPH I

A.{Mr Adams}
NO FAN
STANDARD SPRING TENSIONED WHITTLE BELT
WHITTLE BELT TIGHTENED CHOC A BLOC
BELT CHOC A BLOC AND FAN 1" NEARER RAD.

TEMPERATURE C°
85°
80°
75°
TOP WATER TEMP.
BOTTOM WATER TEMP.

ATS TEMP. 20°C
STANDARD 6 M/M 7 1/2 M/M RAD
ALL SHUTTERS CLOSED 62.5 M.P.H.
19 EX CAR WT. 48 CWT. 11 x 41 AXLE.

BROOKLANDS TEST 2ND JULY 1930
EFFECT OF FAN ON COOLING SYSTEM.

RAD.
E 77675
26.0"
23.25

FAN CHOC À BLOC 6M/M 7 1/2 M/M RAD TUBES
B.ATS TEMP. 20°C. 19 EX CAR.
75 M.P.H.
60 M.P.H.

ALL SHUTTERS OPEN 78°C.
ALL SHUTTERS CLOSED 84.5°C.
ALL SHUTTERS OPEN 73°C.
ALL SHUTTERS CLOSED 78.5°C.

TEMPERATURE C° TOP WATER.
50 60 70 80

EFFECT OF SPEED AND VENTILATION ON COOLING SYSTEM.
  
  


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