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 determining the number of conductors.
| Identifier | ExFiles\Box 64\2\ scan0161 | |
| Date | 28th June 1928 guessed | |
| -2- No. of conductors :- = (Ts^b x 10^8) / (1.41 P Ø C.) = (1.1T x 2 x 10^8) / (1.41 x 4 x 3.50 BDL x C) = (.1115 x 10^8) / (BCDL) ======== EFC. | ||