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 Avon Rubber Co. Ltd. regarding the diameter of test drums to better simulate road conditions.
| Identifier | ExFiles\Box 156\3\ scan0183 | |
| Date | 9th January 1940 | |
| 1331 Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}1/BA. 9th, January. 1940. The Avon Rubber Co.Ltd. Melksham. Wiltshire. For the attention of Dr. J.G.Mackay. Dear Sir, We think it would be better if you made your drums 70" in dia. in order to approach road conditions more closely. We can easily make tests to determine the correction to be applied to our figures to compare with yours. Yours faithfully, for ROLLS-ROYCE LIMITED. | ||