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).
Request to test a magneto for misfires at specific speeds and load conditions.
| Identifier | ExFiles\Box 57\2\ Scan204 | |
| Date | 20th September 1928 | |
| EFC. YS790 20.9.28. Herewith R.O.l. magneto No.105629. Please test and report on this magneto as to the test report on misfires at 15 to 18 M.P.H. full throttle full load as per our conversation this morning. J.{Mr Johnson W.M.} Daykin (Test Dept.) | ||