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 the Director of Army Contracts regarding a wireless screening system and filter unit for a tank engine.
| Identifier | ExFiles\Box 163\2\ img041 | |
| Date | 14th February 1933 | |
| (2) E/JNR.{Charles L. Jenner}9/HP. 14th February 1933. The Director of Army Contracts. Fell was informed quite definitely that the wireless screening system as fitted by us in the Tank was approved as satisfactory - that is to say, that the screening system as applied to the engine itself was acceptable to the War Office. (4) The filter unit, which as stated in (1) above appears to be an essential feature of any screened battery ignition system, is clearly not an engine builder's supply, and we doubt whether any other engine maker besides ourselves would have been equipped even to provide the temporary arrangement which we fitted in the tank. The parts are of a highly specialized nature and could be supplied much more economically by a firm of engineers specializing in wireless equipment, such as Messrs. Ferranti and Messrs. Dubilier, which, if approached, would be able to supply you with suitable articles mounted in a compact form. In the light of the above we suggest it is clear that it is outside our contract and the scope of our activities to furnish you with units of the abovementioned type, and we trust that we may hear from you that you are in agreement with us on this matter. Should you require any further information we should be obliged if you would discuss this matter with our Lieutenant-Colonel Fell of our London Office, who will call upon you at your convenience. Yours faithfully, For and on behalf of ROLLS-ROYCE Limited | ||