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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).
Test results for a Sequence Starter Motor K, measuring current, voltage, and speed under cold and warm conditions.

Identifier  ExFiles\Box 64\2\  scan0153
Date  27th April 1928
  
X7625B
27.4.28.

SEQUENCE STARTER MOTOR K.{Mr Kilner}

Motor cold, current on teazer 20 amperes.
Volts across teazer = 7.65 1/2
" " main = .12
" " armature = 1.03
Total. 8.80

on 12 volts with the motor stalled the current was 29.5 amperes.

Motor warm after 5 mins. run on the teazer at 12 volts -
Current = 21.5 amperes.
Motor speed = 285 r.p.m.
With the armature stalled the current was 24.5 amperes.

EFC/H.E.West.
  
  


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