Graph showing the results of deflection and permanent set tests on a 20/25 HP piston skirt under increasing load.
| Identifier | ExFiles\Box 105\2\ scan0217 | |
| Date | 21th April 1933 | |
| E.57122 20/25 HP. PISTON SKIRT TESTS DEFLECTION & PERMANENT SET - INS. LOAD - LB. DEFLECTION LOWER END CENTRE CROWN END PERMANENT SET LOWER END CENTRE CROWN END AREA OF LOAD CONCENTRATION .250 .625 CRACK - 920 LB 21-4-33. SKIRT THICKNESS AT SAWCUT LOWER END TEST PISTON .084 CENTRE " " .080 CROWN END " " .075 BREAKING " " .081 A.B.L. | ||
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).