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).
Performance graphs for a Standard 40/50 rear hydraulic shock absorber at various strokes and pressures.
| Identifier | WestWitteringFiles\S\June1928-August1928\ Scan032 | |
| Date | 18th June 1928 | |
| 11" STROKE LBS HIGH PRESSURE LOW PRESSURE BUMP REBOUND LBS/SQ" M.E.P H.P. 425 L.P. 180 EFFECTIVE PRESS PRODUCING DAMPING 7" STROKE LBS / SQ" HIGH PRESSURE LOW PRESSURE BUMP REBOUND LBS/SQ" M.E.P. H.P. 365 L.P. 170 RESULTANT EFFECTIVE PRESS 3.7" STROKE PISTON LBS SQ" HIGH PRESS LOW PRESS BUMP REBOUND LBS SQ" M.E.P. H.P. 236 L.P. 127 RESULTANT EFFECTIVE PRESS STANDARD 40/50 REAR HYDRAULIC SHOCK ABSORBER. 13.5" LEVER. MEASURED AT BALL PIN HIGH PRESS LOAD 80 LBS LOW PRESS LOAD 65 LBS. AVERAGE OF SEVERAL DAMPERS DOTTED LINE DAMPER OPERATED VERY SLOWLY. ROLLS-ROYCE LIMITED PRINT ROOM, 18 JUN 1928 DERBY. | ||