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).
Torsional and jogging test results for two modified Falcon model crankshafts with different web thicknesses.
| Identifier | ExFiles\Box 63\4\ scan0127 | |
| Date | 27th August 1930 guessed | |
| FALCON MODEL CRANKSHAFTS TORSIONAL TESTS DES 995 K669S E.32551 Graph A: MODEL OF MODIFIED CRANK TO DES 989 WEB THICKNESS 'w' .295" Graph B: MODEL OF MODIFIED CRANK TO D.E.S 989 WEB THICKNESS 'w' .275" Axis Labels: DEFLECTION - INS - DATUM POINTS A B C D E F G H Notes: READINGS SHOWN ----- DENOTE DEFLECTIONS UNDER LOAD OF 750LB ON LEVER AT 8.125" RAD. ------- PERMANENT SET DATUM PEGS SWEATED TO SHAFTS FOR CONVENIENCE OF CLOCKING LOAD APPLIED ON THIS ¢ FLYWHEEL Table: PARTICULARS OF JOGGLING TEST CRANK | R.P.M | CONDITION AND TIME RUN | REVERSALS A | 300 | 122 HRS BROKEN | 4,400,000 B | 300 | 277.25 HRS O.K | 10,000,000 Test Conditions: CONDITIONS OF TEST AS PREVIOUSLY FLYWHEEL U 648 OSCILLATED THROUGH 6° STROKE BY 8.125" LEVER 300 CYCLES/MIN | ||