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 showing results of three load deflection tests on a lubricated rear road spring after a 5000-mile run.
| Identifier | ExFiles\Box 67a\2\ scan0193 | |
| Date | 10th September 1928 | |
| F.{Mr Friese} REAR ROAD SPRING. 8 EX. N.S. - 1950 LB- CHASSIS TYPE FULCRUM LUBRICATED RUN 5000 MILES IN 6 MONTHS. TEST Nº 3 HYSTERISIS LBS. 94 96 98 100 TEST Nº 2 DEFLECTION - INS - 116 112 108 104 TEST Nº 1 92 96 100 104 AXIS LABELS AND VALUES: APPLIED LOAD - LB - APPLIED LOAD. LB- 1200 1400 1600 1800 2000 12.0 10.0 8.0 | ||