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).
Watford IS12 Magneto returned from the makers with improved electrical performance.
| Identifier | ExFiles\Box 43\4\ Scan297 | |
| Date | 23th July 1930 | |
| X4021 To EP.{G. Eric Platford - Chief Quality Engineer} from EFC. c. RHC.{R. H. Coverley - Production Engineer} c. Mr.Jaques(A.I.D). EFC4/BE23.7.30. X.4021. Watford IS12 Magneto No.98034 ex FXIVMS-39. We have now received this magneto back from the Makers, and we find upon bench testing the same that they have effected a considerable improvement in the electrical performance. This magneto is now in our laboratory when required for refitting to the engine. EFC. | ||