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).
Instructions and test results for a Watford E06 magneto, No. 87407.
| Identifier | ExFiles\Box 70\4\ scan0181 | |
| Date | 11th December 1925 | |
| RR 238 (150 BKS.) (SH57.29-6-20.) MP 224358 X.8797. ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.F.b Order No.: WB{Mr Brazier/Mr Bell}63 Customer's No.: X8796 Date: 11-Dec 1925 Watford E06 Magneto NO 87407 This magneto is one which Mr North brought up from Watford. The special feature of design, besides having a new bronze end plate is the fitting of a thicker aluminium plate over the armature tunnel. We have now tested this magneto on the bench, and find it to be fairly quiet. The sleeve noise is reduced, but the contact breaker is still noticeable and the gears develop an uneven rattle at high speeds. At slow speeds the magneto is certainly quieter than Signed: contd This Sheet must be filed on completion of the work. | ||