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).
Test report on the performance of a Watford EW6 magneto, comparing it to a Lucas model.
| Identifier | ExFiles\Box 65\3\ scan0072 | |
| Date | 30th August 1927 | |
| RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 461-8-12 24) MP 306975 X7791 ROLLS-ROYCE LTD. INSTRUCTIONS. To. E.7.b Order No. WC32 Customer's No. X7791 30 - 8 - 1927 Watford EW6 magneto No 99171. We have now tested this magneto, which is the up-to-date sleeveless type, to our general schedule of performance. We consider the performance to be very good and generally better than the Lucas. It passed satisfactorily our general specification and the figures are comfortably within our limits with the one exception of the leaky gap (12.89/5mm) performance. The weight registers nearly one pound lighter than the Lucas and the low speed retarded Signed contd. This Sheet must be filed on completion of the work. | ||