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(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 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. | 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... | ||
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).