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).
Comparison of motor starter tests using Prices 'C' Oil and Castrol Oil.

Identifier  ExFiles\Box 31\3\  Scan052
Date  15th December 1920 guessed
  
2. EX. CHASSIS.
MOTOR STARTER TESTS WITH PRICES "C" OIL AND CASTROL OIL.

A.{Mr Adams} B.
Atmospheric Temperature. Prices' "C" OIL. CASTROL OIL.

Max: ) during night. 51°F 51°F 57°F 62°F 51°F 39°F
Min: ) 34°F 35°F 32°5°F 47°F 43°F 30°F
Time of test. 43°F 37°F 34°F 50°F 45°F 34.5°F

Voltage of batt. before Test. 12.8 13 12.8 12.9 12.5 12.1
" " " after Test. 12.5 12.7 12.5 12.7 12.2 10.10
" " " during " 10.5 10 10.3 10.5 10.5 8.2

Max: amps. for 1st. compression. 124 148 150 123 152 160
" " to turn engine - 103 1223 125 106 120 148
Engine revolutions. 60 50,45 40,40,50 55 50 20,30,30
  
  


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