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).
Diagram and graph detailing the results of a twist and deflection test on a mechanical component.
| Identifier | ExFiles\Box 129\4\ scan0289 | |
| Date | 1st August 1938 | |
| Clock A Clock B 7.300 12.000 5.600 4.550 7.000 T1 T2 DEFLECTION INCHES LOAD LBS. ANGLE MINUTES (TWIST ONLY) Table: Disc T1 T2 MEAN Disc Rm.{William Robotham - Chief Engineer} 537 090 130 110 Disc Rm.{William Robotham - Chief Engineer} 504 100 150 125 Graph: TWIST TEST TOTAL DEFLECTION CLOCK A + CLOCK B DISC RM.{William Robotham - Chief Engineer} 537 DISC RM.{William Robotham - Chief Engineer} 504 DEFLECTION PARALLEL TO SHAFT DISC RM{William Robotham - Chief Engineer} 537 DISC RM{William Robotham - Chief Engineer} 534 N.R.C. AUG. 1938 RM{William Robotham - Chief Engineer} 556 | ||