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).
Requesting a comparative test of a sleeveless Watford magneto and a Lucas type ER6 magneto.
| Identifier | ExFiles\Box 40\2\ Scan201 | |
| Date | 10th June 1927 | |
| To Mx.{John H Maddocks - Chief Proving Officer} from EFC. c. BY.{R.W. Bailey - Chief Engineer} X8793 EFC6/T10.6.27. X.7791. SLEEVELESS WATFORD MAGNETO. X.8793. LUCAS TYPE ER6. Herewith we hand to you the latest Watford sleeveless magneto, together with the most up-to-date Lucas type ER6 magneto. Will you please have these tried on your test chassis as soon as ever possible and let us have your impressions of both these two machines. We are issuing a general report on our comparative bench tests of which you will shortly have a copy. EFD. | ||