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).
Tyre noise issues on the Spectre model, comparing Dunlop and India tyres.
| Identifier | ExFiles\Box 157\1\ scan0219 | |
| Date | 1st October 1935 | |
| X1332 To SG.{Arthur F. Sidgreaves - MD} " Mor. " C. " FF. " By.{R.W. Bailey - Chief Engineer} " MSX. Hs{Lord Ernest Hives - Chair}/Rs.{Sir Henry Royce's Secretary}17/KW.1.10.35. Tyres for the SpectreCodename for Phantom III. We have had considerable trouble with tyre noise at low speeds on SpectreCodename for Phantom III cars. This appears to have been accentuated to a certain extent by independent wheel springing. The Dunlop tyres are particularly bad in this respect. The only other English made tyre which we have test is the India, which is certainly much better, though far from perfect. We appreciate that as a matter of policy it may be preferred to fit Dunlops to the cars at the show, and also to demonstrate on Dunlops. It will, however, be some time before we can get them to bring their product into line with that of India in regard to this particular fault. Hs{Lord Ernest Hives - Chair}/Rs.{Sir Henry Royce's Secretary} | ||