William Hackett Sling Calculator is a free app that lets you configure your chain sling by taking you through a number of steps. The hiker attaches himself to the sling, and the helicopter then accelerates upward. Found inside – Then we use the tension to evaluate the wave speed on the string using Equation 13.21. This lifting plan sample also provides calculation for sling tension. If the rope is at an angle from the level of the floor, we need to compute for the horizontal component of the pulling force too. ![]() Using the angle from horizontal, read across the angle chart to the corresponding number of the Tension Factor column. load on each leg of sling = (Load 2) x LOAD ANGLE FACTOR ANSI B30.9 recommends against the use of a horizontal sling angle smaller than 30 For example, assume a 2,000 pound load is to be supported by 2 legs of a sling. ![]() ![]() Generally, you can assume that "Length" refers to the span of webbing between the two end slings.
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