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).
Production test results sheet for Goshawk starter motors, test number 1.

Identifier  ExFiles\Box 35\4\  scan 091
Date  29th March 1922 guessed
  
X4384
X.3604 - PRODUCTION TEST RESULTS.
GOSHAWK STARTER MOTORS (TEST 1).

Motor No. | Amperes. | Volts. | Speed. | Speed/Volts. | Springs. | Remarks.
1 | — | — | — | — | — | Tests to find best brush setting only.
2 | 12.0 | 4 | 2,535 | 634 | — | Brushes 3° advanced
" | 11.2 | 6 | 3,890 | 648 | — | "
3 | 13.2 | 4 | 2,800 | 700 | — | Brushes 7° advanced.
" | 14.0 | 6 | 4,040 | 673 | — | "
4 | — | — | — | — | — | Not tested.
5 | — | — | — | — | — | "
6 | 13.6 | 4 | 2,240 | 560 | — | Brushes 3° advanced
" | 12.8 | 6 | 3,600 | 600 | — | Brushes rather loose in holders.
  
  


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