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 a deflection and permanent set test on a gearbox and engine rear cross-member.
| Identifier | ExFiles\Box 2\4\ B002_X 127 128-page05 | |
| Date | 18th January 1933 | |
| C. PEREGINE II GEAR BOX & ENGINE REAR CROSS-MEMBER F.100595 DEFLECTION & PERMANENT SET TEST DEFLECTION & PERMANENT SET AT CENTRE - IN. LOAD AT CENTRE - LB DEFLECTION PERMANENT SET PERMANENT SET COMMENCED (.001") AT 400 LB | ||