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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).
Production brake test results for Goshawk starter motors.

Identifier  ExFiles\Box 35\4\  scan 092
Date  27th January 1922 guessed
  
X.3604. PRODUCTION BRAKE TEST (TEST 2) OF R.R.
GOSHAWK STARTER MOTORS.

Weight of pan and portion of rope :- 4 lbs. 14 ozs.

Motor No. | Load in pan (W) | Spring balance (S) lbs. ozs. | W + S lbs. ozs. | T - t lbs. ozs. | Torque (lb-inches) | S/V.{VIENNA} | Volts. | Speed. | Amps. | Remarks
1 | - | - | - | - | - | - | - | - | - | - | Tests for brush setting only. Scrap motor.
2 | 4 | 1 | 7 | 2 | 9 | 7 | 7 | 37.2 | 118 | 10.14 | 1200 | 93.0 |
3 | 3 | | 13 | 2 | 3 | 7 | 1 | 35.3 | 124 | 10.06 | 1250 | 97.0 | Motor rather hot
4 | - | - | - | - | - | - | - | - | - | - | Not tested
5 | - | - | - | - | - | - | - | - | - | - | "
6 | 4 | 1 | 4 | 2 | 12 | 7 | 10 | 38.2 | 109 | 10.06 | 1100 | 97.0 | Rather hot on this torque for 10 mins

27.2...
  
  


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