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).
Letter to A.J. Rowledge regarding the development of a new engine and the potential use of Wizard sparking plugs.
| Identifier | ExFiles\Box 58\2\ Scan272 | |
| Date | 21th December 1935 guessed | |
| -4- A.J.Rowledge, Esq. that it is likely that in the near future things are going to be made ever so much worse for sparking plugs in general and therefore I propose to go on with the development of this new model which, by the way, lends itself very well to "bottom-sealing" and incorporation of the stand-pipe which has been found effective in preventing plugs being submerged in oil in certain types of radial engines. Colonel Darby tells me that you are developing a new engine and suggests that the Wizard plug might be useful in it and if you think it is worth while I will gladly go into this question with you at your convenience. Quite recently your Mr.West wrote to our Mr. Stirling on the subject of Wizard plugs and in reply Mr.Stirling gave him a lot of useful information - straight from the man who is in the "front line". Colonel Darby suggests that it would be useful if you would kindly pass my present letter along to Mr.West and with this in view I am enclosing a copy which will serve this purpose. With kind regards, Yours very sincerely, R.L. Hall. | ||