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 torsion tests performed on a 'Myth' frame.
Identifier | ExFiles\Box 110\2\ scan0056 | |
Date | 15th December 1943 | |
TORSION TESTS ON MYTH FRAME NO. 1 TEST (DEC '41) AS RF 2259. RATE BETWEEN FRONT AND REAR WHEELS WAS 384 LB-FT/DEGREE NO. 2 TEST (14.12.'43) WITH FRONT MEMBER BOXED IN TO PL.1127. RATE BETWEEN FRONT AND REAR WHEELS WAS 538 LB-FT/DEGREE NOTES a) FRONT PAN (WHICH IS TO BE RUBBER MOUNTED) WAS NOT FITTED FOR THESE TESTS b) TORQUE ACTUALLY APPLIED WAS 268 LB-FT FOR TEST NO 1. AND 406 LB-FT FOR TEST NO 2 Graph Y-Axis: TWIST PER 1,000 LB-FT (DEGREES RELATIVE TO REAR WHEELS) Graph X-Axis: DISTANCE FROM FRONT WHEELS (INCHES) Graph Data Points (from left to right): Test 2: 538, Test 1: 384 Test 2: 812, Test 1: 688 Test 2: 1270, Test 1: 1140 Test 2: 2620, Test 1: 2420 Test 2: 1475, Test 1: 1140 Graph X-Axis Labels (from left to right): FRONT BODY MOUNTING BRACKETS CENTRE OF X 3RD BODY MOUNTING BRACKETS REAR WHEELS FRONT OF REARMOST CROSSMEMBER Side Label: RATES FROM REAR WHEELS LB-FT/DEG | ||