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 British Insulated Cables Ltd. inquiring about ignition cables with specific dielectric properties.
| Identifier | ExFiles\Box 61\1\ scan0309 | |
| Date | 4th August 1936 | |
| J 6110. Expl. Dept. Hs{Lord Ernest Hives - Chair}/Wst.8/MJ. 4th. August, 1936. British Insulated Cables Ltd., Helsby, Nr. Warrington. Dear Mr. Bayles, You will be interested to know we have gone over to B.I. ignition cable on all our cars in preference to Maconite. What I am now interested in is whether you can produce an ignition cable with a dielectric having less specific inductivity in order to reduce the self capacity per unit length of the cable. I believe they are doing this in America. Apparently they have two layers of dielectric, one having half the dielectric inductivity of the other. The idea of course is to reduce the capacity loading on the ignition system. I should be interested to have your views on this question. Yours sincerely, | ||