Hitch | Comments |
---|---|
Vertical Hitch![]() | One end is placed on the hook, while the other end is attached directly to the load. A tagline should be used to prevent load rotation. |
Choker Hitch![]() | Sling passes through one end around the load and the other end is placed on the hook. Rated capacity is normally 80% of that for a vertical hitch. Load control is a potential problem with only one sling rigged in a choker hitch. Also, the choke point should always be on the sling body—not on the fittings, base of the fitting or tag. |
Basket Hitch![]() | The sling cradles the load while both ends are attached overhead. The rated capacity for a basket hitch is twice that for a vertical hitch. As with the choker hitch, more than one sling rigged in a basket hitch (or some other means) may be necessary to help ensure load control. |
Angle “A” in degrees from horizontal | Tension Multiplier |
---|---|
90 | 1.000 |
85 | 1.004 |
80 | 1.015 |
75 | 1.035 |
70 | 1.064 |
65 | 1.104 |
60 | 1.155 |
55 | 1.221 |
50 | 1.305 |
45 | 1.414 |
40 | 1.555 |
35 | 1.742 |
30 | 2.000 |
![]() | Multiply the load weight (per leg) by the tension factor to determine the increased tension of the sling leg(s) |
Angle of Choke (degrees) | Angle of Choke Reduction Factor |
|
---|---|---|
= or > | < | |
120 | 180 | 1.000 |
105 | 120 | 0.82 |
90 | 105 | 0.71 |
60 | 90 | 0.58 |
0 | 60 | 0.50 |