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).
Performance of Dunlop Triple Stud tyres, particularly their non-skid capabilities on rough roads.
| Identifier | ExFiles\Box 45\2\ Scan057 | |
| Date | 2nd February 1928 | |
| Hs.{Lord Ernest Hives - Chair} BY.{R.W. Bailey - Chief Engineer} from R.{Sir Henry Royce} EP.{G. Eric Platford - Chief Quality Engineer} c. to BJ. C. PN.{Mr Northey} c. to CWB. SG.{Arthur F. Sidgreaves - MD} K.4050 R6/M2.2.28. TYRES - DUNLOP TRIPLE STUD. Naturally I cannot do much in this matter. On these rough roads there is not much disadvantage from the above. We have recognised the two speeds at which they are somewhat objectionable, but personally I am so thankful that they are effective non-skids that I want to warn those interested that this point is of extreme importance. I think with these larger tyres the surface loading being less it is more difficult to get through the layer on lubricating clay, etc., to get a hold on the real road. R.{Sir Henry Royce} | ||