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).
Performance comparison of a special magneto against a standard machine, noting its compliance with specifications.
| Identifier | ExFiles\Box 48\2\ Scan301 | |
| Date | 9th July 1925 guessed | |
| -2- Contd. The dotted lines give the limits of performance defined by the specification, and it will be seen that this particular special magneto complies with this more readily than the standard machine, though the low speed utility sparking is slightly inferior, as would be expected. EFC. {E. Fowler Clarke - Electrical Engineer} | ||