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 from the Experimental Department to Harboro' Aircraft Manufacturing Co. Ltd. regarding the special treatment of exhaust silencer parts.
| Identifier | ExFiles\Box 152\3\ scan0311 | |
| Date | 17th July 1939 | |
| 1294. EXPERIMENTAL DEPARTMENT. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}10/JH. 17th. July, 1939. The Harboro' Aircraft Manufacturing Co.Ltd., Market Harborough, LEICESTER. For the attention of Mr. Worth. Dear Sirs, We are sending you today under seperate cover one complete set of exhaust silencer parts comprising 10 pieces, for special treatment by a process communicated to you by Wing Commander Helmore. After you have treated these parts, will you please return them to our Exptl. Dept. marked for the attention of Mr. G.H. Whyman. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||