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).
Declining the replacement of platinum iridium points with tungsten points due to necessary modifications and testing.
| Identifier | ExFiles\Box 35\6\ scan 395 | |
| Date | 14th January 1928 | |
| Roy.{Sir Henry Royce} from EFC. X2894 EFC4/T14.1.28. TUNGSTEN POINTS. With reference to your enquiry as to the possibility of the replacement of platinum iridium points E.327 by tungsten points, I am afraid we cannot agree to this. We should have to introduce considerable modification to the old type trembler, in addition to obtaining the scrubbing action, and then considerable test would have to be made before the change could be effected. EFC. | ||