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).
Results of unit and road tests for Magneto No. 100096, noting good performance but requiring slight modification.
| Identifier | ExFiles\Box 65\3\ scan0276 | |
| Date | 14th May 1928 | |
| EFC [STAMP: Hs{Lord Ernest Hives - Chair} MAY 15 1928] X7791 Mx{John H Maddocks - Chief Proving Officer}'s Dept, Mx{John H Maddocks - Chief Proving Officer} is absent Mx{John H Maddocks - Chief Proving Officer}/MdM5/T14.5.28. re EW.6. Magneto No.100096. With reference to your EFC3/T24.4.28, the above magneto has been run on a full unit test, also on two different chassis on road test for approx. 200 miles. It is quite good for noise also starts engine up cold. A slight modification to the ball arm or controls will be required if standardised. The second magneto referred to in your memo is proceeding satisfactory on test, and a report will be submitted in due course. Mx{John H Maddocks - Chief Proving Officer}/McM | ||