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 results of bending tests on a Wraith II back axle casing.
| Identifier | ExFiles\Box 139\1\ scan0269 | |
| Date | 11th September 1936 | |
| WRAITH II BACK AXLE CASING TESTS SCOTT MODEL Nº2 SHEET II FOR KEY DIAGRAM SEE SHEET I BENDING TESTS - CENTRALLY LOADED STIFFENING PLATE SK 5010 FITTED VERTICAL DEFLECTIONS HORIZONTAL DEFLECTIONS X TO C Y TO C DEFLECTION - INS .300 .200 .100 LOAD - LB 6000 4500 3000 1500 0 C B A M D E | ||