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).
Results of endurance and open circuit tests, including a volt-speed curve.
| Identifier | ExFiles\Box 40\2\ Scan197 | |
| Date | 1st June 1927 guessed | |
| -3- Contd. (6) Endurance test :- OK. (7) Short endurance circuit test :- OK. (8) Open circuit test :- OK. (9) Open circuit primary volt-speed curve. Speed. Volts. Volts/Speed. 400 3.44 .00860 800 6.36 .00795 1200 9.24 .00770 1600 12.23 .00765 2000 14.77 .00738 2400 17.31 .00722 2800 19.65 .00702 3200 22.11 .00691 3400 23.45 .00690 Contd. Volt ampere capacity at 2000rpm = 36.2. Figure of merit = 2.72. | ||