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).
Proposal to test the Lucas type ER6 magneto, comparing its modern design and production methods against the standard Watford magneto.
| Identifier | WestWitteringFiles\O\2April1926-June1926\ Scan180 | |
| Date | 7th June 1926 | |
| To R.{Sir Henry Royce} from EFC. c. BJ. BY.{R.W. Bailey - Chief Engineer} c. Wor.{Arthur Wormald - General Works Manager} PN.{Mr Northey} ORIGINAL EFC1/T7.6.26. LUCAS MAGNETO & PRESENT STANDARD WATFORD MAGNETO. X8793 X8796 For the reasons herein detailed it is considered expedient to proceed with tests of the recent Lucas type ER6. magneto. Of these two magnetos the Lucas is undoubtedly the more modern in general design. The lower price of the Lucas magneto is a result not so much of using cheaper material and inferior workmanship but by using modern methods of production. For instance, the pole pieces are cast integral with the armature tunnel casting thereby saving time, labour and expense in manufacture, and actually making a sounder and more accurate job than machining each part separately. Also the liberal use of die castings cheapens production and it would appear to be worth the initial expense. It is true to a certain extent that Lucas magnetos have not had a good reputation, but they now have behind them the technical ability and wide experience of Dr. Turner, the recognised magneto expert. In conversation with him one appreciates that he knows his job thoroughly well, and that he would spare no pains in producing a thoroughly sound and reliable magneto. Previous magnetos which Messrs. Lucas have manufactured have been largely produced for low price cars, and it does not appear to follow that they would not be Contd. | ||