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).
The current drawn by the starter motor when turning the engine.
| Identifier | ExFiles\Box 50\2\ Scan083 | |
| Date | 6th October 1919 | |
| X4298 6.10.19. X.3082. X.543 X.4298. Mr. Clark. Current taken by starter motor when turning engine = 100 amps. The needle of the instrument swinging between 90 and 110 amps. (Sgd) L.F. | ||