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 tests on the Wraith II back axle casing, including a deflection index graph.
| Identifier | ExFiles\Box 139\1\ scan0268 | |
| Date | 8th September 1936 | |
| SHEET I WRAITH II BACK AXLE CASING TESTS SCOTT MODEL No2. CASING AT 48° TO HORIZONTAL OF AB&E 21.500" 14.250" 9.000" X A B C D E Y M DEFLECTION INDEX - 1/8 SCALE DEFLECTION - INS 1.000 2.000 DEFLECTION AT 6000 LB WITH STIFFENING PLATE SK5010 FITTED. PERMANENT SET AT 6000 LB WITH STIFFENING PLATE SK5010 FITTED (PERMANENT SET COMMENCED AT 1000 LB) DEFLECTION AT 5000 LB WITHOUT STIFFENING PLATE PERMANENT SET AT 5000 LB WITHOUT STIFFENING PLATE | ||