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).
Depot sheet about the impact of fitting radio sets with suppressor units on the engine's idling performance in R.R. and Bentley cars.
| Identifier | ExFiles\Box 63\3\ scan0137 | |
| Date | 21th September 1934 | |
| 86153. Hd.{Mr Hayward/Mr Huddy} From Hs{Lord Ernest Hives - Chair}/Wst. Hs{Lord Ernest Hives - Chair}/Wst.6/MA.21.9.34. DEPOT SHEET. FITTING OF RADIO SETS TO R.R. AND BENTLEY CARS. It has been observed that when resistance supressor units are fitted to sparking plugs and ignition coils to prevent ignition interference with radio sets, the idling performance of the engine is slightly impaired. This is more particularly noticeable with 20/25 and Bentley chassis. Customers should therefore be informed that they may not get good ultra-idling performance with their cars when a radio set is installed. The slow running with the engine "pulling" is not impaired at all. The experimental Dept. are working at schemes to eliminate ignition interference by other means than by inserting these suppressors. Hs{Lord Ernest Hives - Chair}/Wst. | ||