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).
Intensive work on tyre noise for the Phantom III in conjunction with Dunlop Rubber Co.
| Identifier | ExFiles\Box 157\1\ scan0226 | |
| Date | 19th October 1935 | |
| To Sg.{Arthur F. Sidgreaves - MD} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} c. to C. c. to E.{Mr Elliott - Chief Engineer} c. to By.{R.W. Bailey - Chief Engineer} c. to MX.{John H Maddocks - Chief Proving Officer} +1332 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}12/KW.19.10.35. Tyres for Phantom III. Replying to Sg.{Arthur F. Sidgreaves - MD}17/E.7.10.35. We are carrying out intensive work in conjunction with the Dunlop Rubber Co. on this question of tyre noise. They are making all sorts of treads for us to try. The difficulty as we see it is that the existing type of tread is a very good compromise and has been arrived at after a good deal of development. If we finally have to make a major alteration to keep it quiet, it will probably spoil its other features. For this reason attacking the wheel seems to be a more promising line of development, and this is also being followed up. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||