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 test graphs showing deflection versus applied load for a lubricated standard front road spring.
| Identifier | ExFiles\Box 52\2\ Scan182 | |
| Date | 13th September 1928 | |
| G STANDARD FRONT ROAD SPRING - F.71975 - 1100 LB 13-9-28 LUBRICATED TEST N°3 APPLIED LOAD - LB- DEFLECTION - INS. HYSTERISIS LBS 5 4 3 1200 1400 1600 1800 2000 78 76 75 TEST N°2 104 88 72 56 TEST N°1 48 46 44 42 | ||