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).
Test results for a closed circuit primary ampere-speed curve and sparking characteristics.
| Identifier | ExFiles\Box 40\2\ Scan147 | |
| Date | 11th October 1926 guessed | |
| -4- Contd. (10) Closed circuit primary ampere-speed curve. Speed. Amperes. Speed. Amperes. 100 .65 1600 2.44 200 1.13 2000 2.47 300 1.52 2400 2.49 400 1.80 2800 2.51 600 2.06 3200 2.52 800 2.23 3400 2.525. 1000 2.32 1200 2.39 (11) Utility tests. (a) (b) Not taken. (c) (d) (11a) Speed range :- 250 to 4000 rpm Retard 380 " 2100 " Central Will not spark regularly at Advance. (12) Maximum high speed sparking :- 3,300 rpm (13) Low speed sparking characteristics. Speed :- (a) 80 rpm. (b) 125 rpm. (c) 170 rpm. Contd. | ||