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 and data table showing the results of a deflection test on an off-side road spring.
| Identifier | WestWitteringFiles\L\July1924-September1924\ Scan72 | |
| Date | 9th September 1924 guessed | |
| DEFLECTION TEST OF OFF SIDE ROAD SPRING. 6PK. Graph Labels: Y-Axis: DEFLECTION (0.000, 1.000, 2.000, 3.000, 4.000) X-Axis: LOAD IN LBS (170, 470, 670, 970, 1270, 1470, 1670, 1870, 2070, 2270, 2470, 2670, 2870) Graph Lines: LOADING, UNLOADING Data Table: LOAD IN LBS | DEFLECTION LOADING of Spring | UNLOADING of Spring 70 | .090 | .115 170 | .210 | .315 270 | .350 | .515 370 | .520 | .625 470 | .650 | .800 570 | .800 | .940 670 | .920 | 1.070 770 | 1.100 | 1.160 870 | 1.250 | 1.490 970 | 1.380 | 1.580 1070 | 1.535 | 1.710 1170 | 1.675 | 1.855 1270 | 1.805 | 2.025 1370 | 1.955 | 2.055 1470 | 2.105 | 2.350 1570 | 2.245 | 2.410 1670 | 2.350 | 2.580 1770 | 2.500 | 2.770 1870 | 2.630 | 2.910 1970 | 2.770 | 3.060 2070 | 2.900 | 3.250 2170 | 3.150 | 3.410 2270 | 3.220 | 3.590 2370 | 3.280 | 3.680 2470 | 3.450 | 3.830 2570 | 3.610 | 3.950 2670 | 3.770 | 4.000 2770 | 3.900 | 4.000 2870 | 4.000 | 4.000 | ||