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).
Graph of short circuit ampere-speed curves for various magnetos, with amperes expressed as a percentage of the value at 3200 RPM.
| Identifier | ExFiles\Box 65\3\ scan0273 | |
| Date | 19th April 1928 | |
| SHORT CIRCUIT AMPERE-SPEED CURVES OF VARIOUS MAGNETOS WITH THE AMPERES EXPRESSED AS A PERCENTAGE OF THE VALUE AT 3200 R.P.M. Y-Axis: PERCENTAGE X-Axis: SPEED (R.P.M.) REF. NO. | MAGNETO 1. | WATFORD. EOG. NO.73972. 2. | " " NO.82558. (L.A.C) 3. | " " EWG NO.100081. 4. | " " " NO.99171. 5. | LUCAS. ERG. NO.51. 6. | " " " NO.54B. 7. | B.T.H. FMG. NO.356147. 8. | SCINTILLA. AMGA. NO.34937. 9. | " " GNG. NO.57927. 10. | R.BOSCH. FU6R. NO.31859. 11. | CONNER. CMI. NO.8263. 12. | SIMMS. SR6L. NO.127505. 13. | WATFORD. ROI. NO.93284. | ||