Test data sheet detailing a closed-circuit primary ampere-speed curve, speed range, and sparking characteristics.
| Identifier | ExFiles\Box 40\2\ Scan098 | |
| Date | 29th March 1926 guessed | |
| -4- Contd. (10) Closed circuit primary ampere-speed curve. Speed. Amperes. Speed. Amperes. 100 1.00 2400 2.93 200 1.55 2800 2.95 300 1.93 3200 2.96 400 2.24 3400 2.965 600 2.50 800 2.67 1000 2.75 1200 2.81 1600 2.86 2000 2.90 (11) Utility tests. (a) (b) not taken (c) (d) (11a) Speed range:- see attached slip. (12) Maximum high speed sparking:- 2950 rpm. (13) Low speed sparking characteristics. Speeds:- (a) 60 rpm (b) 80 " (c) 115 " Contd. | ||
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).