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).
Recommendation to use three-pointer Lodge Sparking Plugs following positive results from severe testing.
| Identifier | ExFiles\Box 79\1\ scan0021 | |
| Date | 24th July 1914 | |
| COPY. To E.{Mr Elliott - Chief Engineer} from R.{Sir Henry Royce} Copy to J.{Mr Johnson W.M.} Copy to Na.{Mr Nadin} Copy to EH-27/14 R5/P 24. 7. 14. Sparking Plugs. So far as our reports go, Mr. Hives says that the Lodge Plugs have given the best results during the very severe tests which all of the plugs have been put to lately, and he recommends us to use those with three pointers, having the standard pattern of terminal, which is sufficiently quick for our purpose. R.{Sir Henry Royce} Good for intermediate position, and reliable under all conditions. 1097 R.R. 235A (150) (H) W.W. 529. 2-7-14) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 0970. | ||