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).
Flux test report for a motor, form 1.
| Identifier | ExFiles\Box 35\4\ scan 094 | |
| Date | 28th January 1922 | |
| MOTOR FORM 1. FLUX TEST OF MOTOR. Date:- 28.1.22 Motor under test:- R.R. Gas. No:- 1 No. of excitation turns per pole. 5 1/2 No. of armature conductors in series between brushes. 58 2nd | Exciting current (amperes) | Speed. R.P.M. | Volts. | Volts/Speed. | Flux per pole. | Remarks. | |----------------------------|---------------|--------|--------------|----------------|--------------| | 20 | 500 | .930 | .00186 | 48,100 | Advance | | | 1000 | 1.85 | .00185 | | | | | 1500 | 2.80 | .00187 | | | | 80 | 500 | 2.68 | .00536 | 137,300 | | | | 1000 | 5.33 | .00533 | | | | | 1500 | 7.90 | .00526 | | | | 20 | 500 | .982 | .00196 | 50,400 | Central | | | 1000 | 1.97 | .00197 | | | | | 1500 | 2.89 | .00193 | | | | 80 | 500 | 2.72 | .00544 | 139,400 | | | | 1000 | 5.40 | .00540 | | | | | 1500 | 8.00 | .00533 | | | 19.5.21. | ||