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).
Production inspection and test results for the Watford Type EC6 (d) Magneto.
| Identifier | ExFiles\Box 70\4\ scan0191 | |
| Date | 21th January 1925 | |
| X8796 X.B781m - WATFORD TYPE EC6 (d) MAGNETO. X.4181d. PRODUCTION INSPECTION AND TEST. Table Columns: Date. Magneto No. (1) Remarks. (2) Range (degrees) (<- 58º) (3) Remarks. (4) Tangl. Force 3 to 5 lbs. (5) Remarks. (6) Remarks. (7) Min. sparking speeds. (a) (<280) (b) (<210) (c) (<190) Table Data: Row 1: 10-12-25, 87407, OK, 60º, OK, —, OK, OK, 190, 150, 150 Row 2: 16-12-25, 73972, OK, 62º, OK, 2 1/4, Gears noisy., OK, 250, 180, 160 Row 3: 18-11-25, 73970, OK, 63º, OK, —, ", OK, 210, 160, 160 Row 4: 10-4-26, 89479, OK, 62º, OK, 3, Fairly quiet, OK, 180, 150, 140 Row 5: 14-4-26, 89458, OK, 63º, OK, 3 1/2, ", OK, 205, 160, 155 Bottom Left: 21.1.25 | ||