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 Delco rear damper with an adjustable leak and 12-inch lever.
| Identifier | ExFiles\Box 17\1\ Scan055 | |
| Date | 2nd September 1981 guessed | |
| DELCO REAR DAMPER - ADJUSTABLE LEAK. 12" LEVER. Top Left Graph: DELCO II. HIGH PRESSURE 4" STROKE. N°1 LEAK. 70 R.P.M 50 R.P.M 25 R.P.M MAX. PRESSURES 1085 LBS/□" 825 " 323 " Y-Axis: 462 LB/□" Top Right Graph: DELCO II. LOW PRESSURE 4" STROKE. N°1 LEAK. 350 R.P.M 250 R.P.M 150 R.P.M MAX. PRESSURES 231 LBS/□" 146 " 85 " Y-Axis: 154 LB/□" Middle Left Graph: DELCO II. HIGH PRESSURE. 4" STROKE. N°3 LEAK. 150 R.P.M 120 R.P.M 100 R.P.M 70 R.P.M MAX PRESSURES 1085 LBS/□" 763 " 647 " 531 " Y-Axis: 462 LB/□" Middle Right Graph: DELCO II. LOW PRESSURE 4" STROKE. N°3 LEAK. 350 R.P.M 250 R.P.M 150 R.P.M MAX. PRESSURES 216 LBS/□" 131 " 77 " Y-Axis: 154 LB/□" Bottom Left Graph: DELCO II. HIGH PRESSURE. 4" STROKE. N°4 LEAK. 150 R.P.M 120 R.P.M 100 R.P.M 70 R.P.M MAX. PRESSURES 1065 LB/□" 832 " 624 " 503 " Y-Axis: 462 LB/□" Bottom Right Graph: DELCO II. LOW PRESSURE. 4" STROKE. N°4 LEAK. 350 R.P.M. 250 R.P.M. 150 R.P.M. MAX. PRESSURE 216 LBS/□" 139 " 77 " Y-Axis: 154 LB/□" | ||