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).
Electrical experimental record sheet for a Watford EWG magneto, serial number Na100081.
| Identifier | ExFiles\Box 65\3\ scan0305 | |
| Date | 23th May 1928 | |
| X7791 ELECTRICAL EXPERIMENTAL RECORD SHEETS. X. No: - 7791 Watford EWG magneto Na{Mr Nadin}100081. on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered. | Total miles. ---|---|---|---|---|---|---|--- 19/12/27 | lab | | Received from makers, Production tested OK. Silence tests with expl. cams. | | | | 20-12-27 | MX{John H Maddocks - Chief Proving Officer} | | Handed to MX.{John H Maddocks - Chief Proving Officer} for silence tests | | | | 11-1-28 | lab | 11-1-28 | Wrong rotor fitted, rotor exchanged for another off Eob magnets. Returned to lab. | | | | 18-1-28 | " | 19-1-28 | Tested to general schedule of performance. | | | | 20-1-28 | 15EX | | Fitted to 10000 mile test chassis 15EX. | 68 | | | 7-5-28 | " | | Engine placed in 98NK | | 11256 | 11188 | 11188 15-5-28 | 98NK | 23-5-28 | Removed owing to noise and returned to lab. | 6239 | 6393 | 154 | 11,342 23-5-28 | lab | | Dismantled and examined, subsequently reported upon. | | | | | " | | Returned to Messrs Norths for reconditioning. | | | | | Norths' | | Received Back. | | | | Handed over to production | ||