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).
Instructions detailing the resistance of a main winding and noting the machine's similarity to a C machine.
| Identifier | ExFiles\Box 64\1\ scan0211 | |
| Date | 29th June 1920 | |
| RR 238 (150 BKS.) (SH57. 29-6-20.) MP 224358 ROLLS-ROYCE LTD. INSTRUCTIONS. 19 To Order No. PC 97 (2) Customer's No. Resistance of main winding is .01020 w at 22.5 C. The machine in all other respects is the same as C machine. Signed C.A.P. This Sheet must be filed on completion of the work. | ||