Rolls-Royce Archives
         « Prev  Box Series  Next »        

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 radiator temperature performance during hill climb tests at Cat and Fiddle Hill.

Identifier  ExFiles\Box 24\4\  Scan254
Date  16th September 1924
  
RADIATOR TESTS CAT AND FIDDLE HILL
OVER-HEATING REDUCED BY CLIMBING ON INDIRECT GEARS

Graph A:
CONSTANT ROAD SPEED
FAN SPEED VARIED.
TOP RADIATOR TEMPS.
MEAN AIR TEMP 14°C
SPEED 25 M.P.H.
DIRECT DRIVE FAN R.P.M. 1040
2ND SPEED FAN R.P.M. 2320
3RD SPEED FAN R.P.M. 1850

Graph B:
CONSTANT ROAD SPEED.
FAN SPEED VARIED.
TOP RADIATOR TEMPS.
MEAN AIR TEMP 14°C.
SPEED 20 M.P.H.
3RD SPEED.
2ND SPEED.

Graph C:
CONSTANT FAN SPEED.
ROAD SPEED VARIED
TOP RADIATOR TEMPS.
MEAN AIR TEMP 13°C.
FAN R.P.M. 1550
3RD SPEED 30 M.P.H.
2ND SPEED 20 M.P.H.
1ST SPEED 13 M.P.H.

AXIS LABELS:
TEMPERATURE °C RADIATOR
DISTANCE CLIMBED MILES.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙