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).
Page of calculations relating to useful flux per pole and the number of conductors.
| Identifier | ExFiles\Box 35\4\ scan 150 | |
| Date | 30th April 1923 guessed | |
| -2- Contd = 5/29 x π x 2.850 = 1.54" = 39 mm. Length = 2.50" = 63.5 mm. This gives a useful flux per pole of 6500 x 6.35 x 3.9 = 161,000 Number of conductors = Tb x 10⁸ ------------ 1.41 P Ø C = 36.4 x 2 x 10⁸ ------------------------- 1.41 x 4 x 161000 x 120. = 66.8 ___________ | ||