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).
Scheme for systematically observing the life of ignition contact points using various component combinations.
| Identifier | ExFiles\Box 35\6\ scan 200 | |
| Date | 8th September 1926 | |
| X2894 To E.{Mr Elliott - Chief Engineer} from EFC. EPC3/T8.9.26. LIFE OF IGNITION CONTACT POINTS. X2894 X4652 In accordance with a scheme which we have arranged of systemmatically observing the results on contact point life utilising the eight combinations of - (a) Standard or finer primary ignition coil, (b) Single or double value ballast resistance, (c) Platinum or British tungsten contact points, we should be pleased if you would let us have the milometer reading and the condition of the British tungsten points on 9-GIII, and the milometer reading and present condition of the standard platinum points on 10-EX. EFC. | ||