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 Associated Equipment Co. Ltd. confirming the clearance for AC.9 bearing alloy.
| Identifier | ExFiles\Box 116\1\ scan0108 | |
| Date | 9th March 1938 | |
| 1020a. Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews}10/JH. 9th March. 1938 The Associated Equipment Co.Ltd., Southall, Middlesex. For the attention of Mr. Rackham. Dear Sirs, We thank you for your letter relating to AC.9 bearing alloy and confirm that the clearance should be as specified for AC.7 alloy namely 1.3 thous. per inch diameter. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||