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).
Technical drawing of a Dunlop Type N2 500-18 wire wheel.
| Identifier | ExFiles\Box 159\1\ scan0229 | |
| Date | 18th May 1926 | |
| DUNLOP 500-18, TYPE N2. WIRE WHEEL., ROLLS-ROYCE, LTD, PRINT ROOM, DERBY, 15 1/8" EFF. RADIUS, 8.00" DEFLECTED WIDTH, 7.30" WIDTH, 32.50 DIA., 28 FRONT SPOKES, 42 REAR SPOKES, 5.00"-18 RIM., 1 1/16, .500, 17.300 DIA., 1.650, SECTION OF TYRE ON 5" OR 5.25, TYRE SECTION BASED ON DEFLECTED (WIDTH), 18.200 DIA., LOAD 17 CWTS, PRESS 40 LBS/SQ. INCH | ||