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).
Series of three graphs showing the results of front spring tests, plotting deflection against applied load.
| Identifier | ExFiles\Box 67a\2\ scan0198 | |
| Date | 12th September 1928 | |
| L FRONT SPRING TESTS - 12 EX. - CADMIUM PLATED F.78164 - 1050 LB. - AFTER ROAD TEST - 4000 MILES -DRY- THIS SPRING WAS PURPOSELY NOT LUBRICATED DURING ONE TEST. HYSTERISIS LBS DEFLECTION - INS APPLIED LOAD - LB. TEST N° 3 TEST N° 2 TEST N° 1 5 4 3 900 1100 1300 1500 1700 30 88 80 76 72 68 66 96 90 72 | ||