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 a magneto, detailing a durability run and subsequent inspection for wear on the rubbing block and contact points.
| Identifier | ExFiles\Box 65\3\ scan0204 | |
| Date | 8th December 1924 | |
| RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 481-8-12 24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To________________ 19 Order No.____________ Customer's No.________________ The magneto was run at 3000 rpm for 160 hours on the bench after which it ran for a further 15 hrs at 4000rpm. The primary gap measured before the run was .012" and after the run .005" showing that allowing for the wear of the contact points the rubbing block wear was considerable. No trouble was experienced during the test and an examination of the lever afterwards shewed it to be quite OK. The lever is handed to you herewith for inspection. Another of these levers is running on a std magneto on 8EX. Signed H.E.W. This Sheet must be filed on completion of the work. | ||