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).
Report page discussing the performance and compliance of magnetos, specifically comparing Watford and Lucas models.
| Identifier | WestWitteringFiles\Q\2April1927-June1927\ 177 | |
| Date | 11th June 1927 guessed | |
| -10- Contd. sparking figure to be 190 r.p.m. which, though not yet quite as low as the Watford, is a more reasonable figure for comparison. We are taking up with the makers the reason as to why this magneto does not comply with some of the items in our general specification. The Lucas may be said reasonably to comply with this. We are now making comparative tests of these two magnetos on chassis. EFC. Print attached. | ||