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).
Test procedures for a primary point gap, magneto break, and observing machine operation.
| Identifier | ExFiles\Box 4\5\ 05-page302 | |
| Date | 21th August 1924 guessed | |
| -5- Contd. (15) Ascertain firstly that primary point gap has not been appreciably altered during the above test, and secondly observe the effect on the primary and magneto break, caused by varying the primary point gap .004" above and below normal. (16) Note down remarks re silence of operation of the machine. EFC. | ||