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).
Figures showing gauge pressures and corresponding ball pin loads for four Type HT.3 Tele-Control Hartford shock dampers.
| Identifier | ExFiles\Box 151\2\ scan0113 | |
| Date | 16th November 1933 | |
| FILES: K4698 16.11.33. TELE-CONTROL HARTFORD SHOCK DAMPERS. TYPE HT.3. Figures taken showing gauge pressures and corresponding ball pin loads for four dampers. Gauge lbs/sq.in. Ball Pin Load Damper No.1 Damper No.2 Damper No.3 Damper 4 40 15 15 15 15 60 20 20 20 20 80 25 25 25 25 100 30 30 30 30 120 35 35 35 40 140 40 40 40 45 160 50 45 45 50 180 55 50 50 65 200 65 60 60 75 220 75 65 65 80 240 80 75 75 85 260 85 80 80 100 280 95 90 90 110 300 105 100 95 115 320 110 110 105 125 340 130 125 110 135 360 135 140 120 145 380 145 - 125 - 400 - - - - | ||