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 starter motor.
| Identifier | ExFiles\Box 51\5\ Scan178 | |
| Date | 21th October 1921 | |
| MOTOR FORM 5. X.3009 - BRAKE TEST OF STARTER MOTOR. Date:- 21.10.21. Motor under test :- C.A.V. Dia. of brake wheel = 10" No.:- 85 Type: S.C. Reduction gear ratio = / Weight of pan and portion of rope 5 lbs. / ozs. Load in pan (W) lbs. | Spring balance reading (S) lbs.ozs. | Speed R.P.M. | Amps. | Volts. | W-S (lbs) | T-t (lbs) | Torque (lb-ins). | B.H.P. | E.H.P. | Efficiency. 2 | 1 6 | 1760 | 84.5 | 10.31 | 10.5 | | 28.5 | .80 | 1.17 | .684 0 | 15 | 2060 | 70.0 | 10.60 | -15.4 | 13 | 20.7 | .68 | .99 | .687 R.R. 296A (100 T) S. H. {Arthur M. Hanbury - Head Complaints} 768. 10-12-20. G. {Mr Griffiths - Chief Accountant / Mr Gnapp} Eay. 19.5.21. | ||