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 a near side road spring.
| Identifier | WestWitteringFiles\L\July1924-September1924\ Scan73 | |
| Date | 1st August 1934 guessed | |
| DEFLECTION TEST OF NEAR SIDE ROAD SPRING 46PK Graph: Y-axis: DEFLECTION IN INCHES X-axis: LOAD IN LBS Line 1: LOADING Line 2: UNLOADING Data Table: LOAD IN LBS | DEFLECTION OF SPRING LOADING | DEFLECTION OF SPRING UNLOADING 70 | 0.060 | 0.240 170 | 0.185 | 0.445 270 | 0.360 | 0.635 370 | 0.520 | 0.815 470 | 0.690 | 0.965 570 | 0.830 | 1.095 670 | 1.000 | 1.295 770 | 1.165 | 1.460 870 | 1.275 | 1.675 970 | 1.410 | 1.760 1070 | 1.570 | 1.880 1170 | 1.725 | 1.960 1270 | 1.880 | 2.110 1370 | 2.030 | 2.285 1470 | 2.280 | 2.405 1570 | 2.405 | 2.635 1670 | 2.640 | 2.750 1770 | 2.690 | 2.955 1870 | 2.895 | 3.150 1970 | 3.000 | 3.265 2070 | 3.175 | 3.455 2170 | 3.345 | 3.615 2270 | 3.485 | 3.785 2370 | 3.621 | 3.830 2470 | 3.785 | 3.900 2570 | 3.935 | 3.925 | ||