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).
Brake test report for a Goshawk starter motor.

Identifier  ExFiles\Box 35\4\  scan 099
Date  2nd February 1922
  
MOTOR FORM 5.
X.300-9 - BRAKE TEST OF STARTER MOTOR.
Date:- 2.2.22
Motor under test:- R.R. Goshawk
No. of brake wheel - 10"
No:- 1
Weight of pan and portion of rope 5 lbs. 0 ozs.
Reduction gear ratio -
Table Headers: Load in pan (W), Spring balance reading (S) lbs.ozs., Speed R.P.M., Amps., Volts., W-S (lbs.), T-t (lbs)., Torque (lb-ins)., B.M.P., E.H.P., Efficiency
Table Data:
Row 1: 3, ' 15, 1235, 90, 10.20, 2, 7.19, 36.0
Row 2: 2, ' 10, 1290, 86, 10.28, 1, 6.38, 31.9
Row 3: 1, ' 8, 1432, 78, 10.44, .8, 5.50, 27.5
Row 4: 0, ' 8, 1585, 70, 10.60, -.8, 4.50, 22.5
19.5.21.
  
  


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