U.S. Customary Units
70 ft. 100 ft.
Load line block weight is 3200 lbs.
Load line (6 part line): 1 1/4" Dyform 18 EIPS-IWRC; 175,800 lbs. breaking strength; 35,160 lbs. working strength.
Fast line block weight is 210 lbs.
Fast line (1 part line): 3/4" 19x7 EIPS-IWRC; 48,000 lbs. breaking strength; 9,600 lbs. working strength.
Static load = 1.5 x dynamic load
Pedestal reactions are based on three times the dynamic load plus the dead load.
70 ft. Boom
| Reach (ft.) | Boom Angle (deg.) | Static Load Line (lbs.) | Fast Line Load (lbs.) | Dynamic Load (lbs.) |
| 13 | 79.5 | 200000 | 9390 | 200000 |
| 20 | 73.4 | 200000 | 9390 | 200000 |
| 25 | 69.1 | 200000 | 9390 | 169870 |
| 30 | 64.6 | 200000 | 9390 | 145915 |
| 35 | 60.0 | 192798 | 9390 | 128539 |
| 40 | 55.2 | 172838 | 9390 | 115231 |
| 45 | 50.0 | 156849 | 9390 | 104571 |
| 50 | 44.4 | 142513 | 9390 | 95013 |
| 55 | 38.2 | 127449 | 9390 | 84970 |
| 60 | 31.0 | 114895 | 9390 | 76601 |
| 65 | 21.8 | 104273 | 9390 | 69519 |
| 70 | 0.0 | 82437 | 9390 | 54961 |
| Maximum Overturning Moment (ft.-lbs.) | 15,411,062 |
| Corresponding Axial Force (lbs.) | 389,326 |
| Maximum Axial Force (lbs). | 504,300 |
| Corresponding Moment (ft.-lbs.) | 5,384,198 |
| Basic Crane Weight (lbs.) | 104,300 |
| Center of Gravity (ft.) | 15.57 |
100 ft. Boom
| Reach (ft.) | Boom Angle (deg.) | Static Load Line (lbs.) | Fast Line Load (lbs.) |
| 15 | 81 | 200000 | 9,390 |
| 20 | 78 | 200000 | 9,390 |
| 30 | 72 | 200000 | 9,390 |
| 40 | 66 | 154088 | 9,390 |
| 50 | 60 | 125390 | 9,390 |
| 60 | 53 | 102786 | 9,390 |
| 70 | 45 | 84885 | 9,390 |
| 80 | 37 | 71458 | 9,390 |
| 90 | 25 | 61015 | 9,390 |
| 100 | 0 | 46087 | 9,390 |
| Maximum Overturning Moment (ft.-lbs.) | 14,746,066 |
| Corresponding Axial Force (lbs.) | 335,457 |
| Maximum Axial Force (lbs). | 520,623 |
| Corresponding Moment (ft.-lbs.) | 7,814,704 |
| Basic Crane Weight (lbs.) | 120,623 |