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. | ||