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).
Blueprint detailing the results of a Stresscoat lacquer test on a Phantom III wheel rim.
| Identifier | ExFiles\Box 96\4\ scan0175 | |
| Date | 26th June 1939 | |
| DIRECTION OF WHEEL AXIS RADIAL COMPRESSIVE STRESS 6 ÷ 9 TONS/□" RADIAL COMPRESSIVE STRESS 6 ÷ 9 TONS/□" RADIAL COMPRESSIVE STRESS 8 ÷ 12 TONS/□" CIRCUMFERENTIAL COMPRESSIVE STRESS 5½ ÷ 8 TONS/□" SECTION THROUGH RIM WHEEL DETAILS PIECE NO. G 83717 TYRE DUNLOP FORT 7" X 18" RADIAL TENSILE STRESS 8 ÷ 12 TONS/□" THE STRESSES QUOTED ARE BASED ON THE CRACK FORMATIONS AND CORRESPOND TO THE NORMAL TYRE PRESSURE OF 35 LBS/□" STRESSCOAT LACQUER TEST ON PHANTOM III WHEEL RIM BL 2357 SHEET 2 | ||