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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 plotting water flow against suction side depression for a Phantom II cooling system under various temperature and nozzle conditions.

Identifier  WestWitteringFiles\U\January1930-April1930\  Scan050
Date  13th January 1930
  
PHANTOM II COOLING SYSTEM. 5 1/2-7mm MATRIX TUBES (19Ex)
WATER FLOW AND SUCTION SIDE DEPRESSION FOR VARYING TEMPERATURES AND WITH AND WITHOUT 30 RESTRICTED DELIVERY NOZZLE.

Y-AXIS: WATER FLOW THROUGH TOP WATER PIPE (GALLS/MIN)
X-AXIS: DEPRESSION ON SUCTION SIDE OF PUMP (INCHES OF MERCURY)

LEGEND:
STANDARD SYSTEM SUCTION SIDE TEMP. 60°C —●—
STANDARD SYSTEM SUCTION SIDE TEMP. 85°C ●
RESTRICTED DELIVERY NOZZLE SUCTION SIDE TEMP. 60°C □
RESTRICTED DELIVERY NOZZLE SUCTION SIDE TEMP. 85°C x

3.

STAMP:
ROLLS-ROYCE, LIMITED
PRINT ROOM
JAN 13 1930
DERBY.
  
  


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