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).
Graphical report on road spring tests after cleaning and lubrication.
| Identifier | ExFiles\Box 52\2\ Scan184 | |
| Date | 18th August 1928 | |
| J. {Mr Johnson W.M.} 18-8-28 ROAD SPRING TESTS 1100 LB- STANDARD FRONT- F.71975- OFF 78 N.K. AFTER 3 1/2 YEARS SERVICE CLEANED AND LUBRICATED TEST N°3 APPLIED LOAD- LB- HYSTERISIS LBS. 70 60 50 40 TEST N°2 APPLIED LOAD- LB- DEFLECTION- INS 40 38 36 34 TEST N°1 APPLIED LOAD- LB- 24 Axis Values (repeated for each graph): Y-Axis (Deflection-INS): 3.5, 4.5, 5.5 X-Axis (Applied Load-LB): 1200, 1400, 1600, 1800, 2000 | ||