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 Hoffmann Manufacturing Co. Ltd. authorising a dimensional change for the unground recess on part F.89831.
| Identifier | ExFiles\Box 153\1\ scan0204 | |
| Date | 1st March 1939 | |
| 1300 Experimental Dept. Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}3/MH.{M. Huckerby} 1st. March, 1939. Messrs. The Hoffmann Manufacturing Co. Ltd., Chelmsford, ESSEX. Your Ref. JB/ELK/DOA. Dear Sirs, Re your letter of 28th. February, we have no objection to increasing the diameter of the unground recess on F.89831 to 1.338 ± 0.005. Yours faithfully, for ROLLS-ROYCE LTD. | ||