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 report page detailing results for endurance, circuit, and open circuit primary volt-speed curve tests.
| Identifier | ExFiles\Box 57\2\ Scan159 | |
| Date | 23th December 1926 guessed | |
| -3- Contd. (6) Endurance test :- OK 4.5 mm gaps. (7) Short [strikethrough:armature] circuit test :- OK (8) Open circuit test :- OK (9) Open circuit primary volt-speed curve. Speed. Volts. Volts/Speed. 400 3.2 .0080 800 5.6 .0070 1200 7.8 .0065 1600 10.9 .0068 2000 13.3 .00665 2400 15.2 .0063 2800 17.2 .0061 3200 19.2 .0060 3400 20.0 .0059 Contd. | ||