Use of twin tyres at the back to increase capacity, due to the difficulty of procuring larger section tyres.
| Identifier | ExFiles\Box 81\1\ scan0134 | |
| Date | 21th April 1914 | |
| R.R 235A. (150 H) (V.V. 782 27.3.14) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 0442. COPY. To By. {R.W. Bailey - Chief Engineer} from R. {Sir Henry Royce} Copy to J. {Mr Johnson W.M.} Copy to Wor. {Arthur Wormald - General Works Manager} Copy to Na. {Mr Nadin} R5/P 21. 4. 14. Re LARGER TYRES. We believe that the only thing possible to do with reference to an increase in the capacity of the tyres is to use twin tyres at the back. I have discussed the matter with Mr Johnson, and I object definitely to a larger diameter of wheel, and a larger section of tyre seems difficult to procure everywhere, so that there is nothing left for it but the twin tyres, which should be put through a thorough test as early as convenient. I think, however, they should be avoided on trials cars, and cars with ordinary light bodies, and only used when we are obliged to provide larger tyres. R. {Sir Henry Royce} [Handwritten on left margin]: x917 [Watermark/Stamp]: ROLLS-ROYCE LTD 1804 [Watermark/Stamp]: MADE AT CROXLEY | ||
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).