7' x 19' U.S. Royal Tyre, comparing its dimensions and weight with standard Dunlop tyres.
| Identifier | ExFiles\Box 58\1\ Scan097 | |
| Date | 8th May 1930 | |
| To OY. From Hs {Lord Ernest Hives - Chair} /AJL. c. to BY. {R.W. Bailey - Chief Engineer} c. to DR. c. to EV. {Ivan Evernden - coachwork} X 5820 - Hs {Lord Ernest Hives - Chair} /AJL.2//WJ.8.5.30. x3895 x7820 x5820. 7" x 19" U.S. ROYAL TYRE (FLAT BASE RIM). The attached chart shows the dimensions, weight etc., as compared with our standard Dunlop tyres (P.II and 20/25 HP). Hs {Lord Ernest Hives - Chair} /AJL. | ||
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).