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).
Graphs and data tables showing variation in Delco loading with axle velocity for rear axle dampers.
| Identifier | ExFiles\Box 56\1\ Scan035 | |
| Date | 9th January 1931 guessed | |
| SHEET 2. REAR AXLE DAMPERS. VARIATION IN DELCO LOADING WITH AXLE VELOCITY. VALVES 3G. G.2. STROKES 2"-4" 12" LEVER. 1680.4" STROKES Top Graphs & Tables: Graph 1 (High Press.) Y-axis: 450 R.P.M., 300 R.P.M., 200 R.P.M., 100 R.P.M. Right axis: 308 LBS/D" Table 1: FT/SEC. AXLE VEL. | MAX. BALL PIN LOAD. | MEAN BALL PIN LOAD. 2 | 194 | 138 1.33 | 141 | 105 .9 | 92.5 | 67 .45 | 40 | 28.2 Graph 2 (Low Press.) Y-axis: 154 Lbs/D", 450 R.P.M., 300 R.P.M., 200 R.P.M., 100 R.P.M. Table 2: FT/SEC AXLE VEL. | MEAN BALL PIN LOAD. | MAX BALL PIN LOAD. 2 | 27 | 35 1.33 | 19 | 26.3 .9 | 15 | 19.6 .45 | 13 | 15.4 Bottom Graphs & Tables: Graph 3 (High Press.) Y-axis: 140 R.P.M., 100 R.P.M., 70 R.P.M. Right axis: 462 LBS/D" Table 3: AXLE VEL | MEAN BALL LOAD | MAX. BALL LOAD. 2.4 | 226 | 300 1.7 | 183 | 256 1.2 | 103 | 145 Graph 4 (Low Press.) Y-axis: 154 LBS/D", 140 R.P.M., 100 R.P.M., 70 R.P.M. Table 4: AXLE VEL. | MEAN BALL LOAD. | MAX. BALL LOAD. 2.4 | 27 | 33 1.7 | 20 | 22 1.2 | 16.8 | 17.6 | ||