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 results for a Watford R.O.1 magneto from chassis GAK 77, including low speed sparking and an endurance test.
| Identifier | ExFiles\Box 47\4\ Scan096 | |
| Date | 9th January 1925 | |
| RR 888 (100 BKS.) (SHST.29-6-20.) MP.224358 X 4118 ROLLS-ROYCE LTD. INSTRUCTIONS. 9 - 1 - 1925 To E.H.B. Order No. W.A.102. Customer's No. X 3551 Watford R.O.1 magneto NO 68302 Ex chassis GAK 77. Jackson. This magneto has now been tested and was found to be OK. It was first put through the production test as per our specification the low speed sparking being as follows. Fully Advanced 350 r.p.m. Central 220 " Fully Retarded 162 " An endurance test was then carried out consisting of an 8 hr run at 2000rpm lever central and the H.T. Signed contd This Sheet must be filed on completion of the work. | ||