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).
Reporting that a Watford Magneto on chassis EW.6 has developed knocks from the gears.
| Identifier | ExFiles\Box 65\3\ scan0225 | |
| Date | 21th March 1928 | |
| X 7791 EFC from Mx{John H Maddocks - Chief Proving Officer} Mx{John H Maddocks - Chief Proving Officer}10/T21.3.28 re 40/50HP Chassis EW.6. Watford Magnetos Since writing our memo Mx{John H Maddocks - Chief Proving Officer}7/T21.3.28, EW.6. Watford Magneto No.105340 has developed knocks, presumably from the gears, after about a further 15 miles running. Mx{John H Maddocks - Chief Proving Officer} | ||