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).
Electrical performance test results for endurance, short circuit, open circuit, and volt-speed curve.
| Identifier | ExFiles\Box 43\4\ Scan245 | |
| Date | 18th February 1930 guessed | |
| -3a- (6) Endurance test :- OK (7) Short circuit test :- OK (8) Open circuit test :- OK NOTE ! all electrical perform- ance tests following were carried out using 6 feet long metal braided H.T. cables earthed to the magneto at each end. (9) Open circuit primary volt-speed curve :- Speed. Volts. Volts/Speed. 400 5.60 .0140 800 10.90 .0136 1200 14.50 .0121 1600 20.00 .0125 2000 24.18 .0121 2400 28.00 .0117 2800 31.55 .0113 3200 40.33 .0126 3600 47.60 .0132 contd. | ||