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 showing a closed circuit primary ampere-speed curve and sparking characteristics.
| Identifier | ExFiles\Box 48\2\ Scan198 | |
| Date | 14th May 1926 guessed | |
| -4- (10) Closed circuit primary ampere-speed curve. Speed. Amperes. Speed. Amperes. 100 1.12 1200 2.08 200 1.51 1600 2.13 300 1.70 2000 2.17 400 1.85 2400 2.19 600 1.97 2800 2.21 800 2.01 3200 2.22 1000 2.05 3400 2.22 (11) Utility tests. (a) (b) (c) Not taken (d) (11a) Speed range :- 1050 to 3000 rpm (central position only) (12) Maximum high speed sparking :- 5000 rpm (13) Low speed sparking characteristics :- Speeds :- (a) 100 rpm (b) 120 " (c) 215 " Contd. | ||