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).
Continuation of a letter discussing issues with a spark plug's copper electrode and requesting a special plug for an endurance test.
| Identifier | ExFiles\Box 79\1\ scan0104 | |
| Date | 26th June 1918 guessed | |
| Contd. -2- EHL/LG.4618. ----------- We think it will be difficult to over-come the copper electrode stretching on this type of plug. The centre electrode is certain to get very hot because it is very much exposed and the only place for it to get rid of its heat, is through the screwed thread. We do not consider this type of plug compares with the K.R.3. with the copper electrode. We should very much like to receive a special K.R.3. plug at an early date because we are starting an 100 hours endurance test and if possible we should like to run with these plugs. When can we expect these plugs ? Yours faithfully. | ||