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).
Graph showing the effect of tyre deflation on tractive resistance for well-worn Canadian Dunlop Cord tyres.
| Identifier | ExFiles\Box 39\2\ Scan168 | |
| Date | 18th June 1923 | |
| TESTS TAKEN ON 3 E.X. CANADIAN DUNLOP CORD USED WELL WORN. T.R. LBS. PER TON M.P.H TYRES 30 LBS ☐ TYRES 90 LBS ☐ EFFECT OF TYRE DEFLATION ON TRACTIVE RESISTANCE. SOFT TYRES INCREASE TRACTIVE RESISTANCE BY 14.0 LBS PER TON. ROLLS-ROYCE, LIMITED PRINT ROOM. 18 JUN 23 DET | ||