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).
Return of Watford IS.12 magnetos from a test engine for material examination of the distributor gears.
| Identifier | ExFiles\Box 43\4\ Scan165 | |
| Date | 23th April 1929 | |
| X4021 To EP.{G. Eric Platford - Chief Quality Engineer} from EFC. EFC1/T23.4.29. WATFORD IS.12 MAGNETOS. A pair of these magnetos Nos.98033/4 is fitted to type test engine No.13. These should be returned to us after the test for examination as we wish to determine the material used for the distributor gears. EFC. | ||