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 Lodge Plugs Ltd. regarding the rejection of RL.14 sparking plugs for the 20/25 HP car.
| Identifier | ExFiles\Box 162\6\ img319 | |
| Date | 8th April 1936 | |
| γ r6002B. Expl. Dept. HS{Lord Ernest Hives - Chair}/Wst.9/MJ. 8th. April, 1936. Messrs. Lodge Plugs Ltd., RUGBY. For the attention of Mr. Bernard Hopps. Dear Sir, Replying to your letter of the 3rd.inst., regarding 14 mm. sparking plugs for our 20/25 HP. car we would say that a number of RL.14 plugs have been tried and were rejected owing to the fact that they would not permit the engine to slow run. We have not noticed this effect on the Phantom 111 car and we wonder whether some new form of electrode is indicated on this type of sparking plug before it will be successful for the smaller engine as well. Yours faithfully, For Rolls-Royce Ltd. | ||