By Michael Tain
The use of multiple lines in rigging operations can provide tree care professionals with several advantages. The secondary lines can provide additional support for the load, perhaps distributing its weight more evenly among several anchor points. They can also direct, move or drift the load to a different, yet desired, location as line is fed out on the original load line and taken in on the secondary or drift line. As the load nears the drift line’s anchor point, that rope becomes the load line. Secondary lines may also be used in situations where the rigging plan and obstacles prevent any radical or sudden movement on the part of the tree or branch being removed, thus the additional line(s) act as supports and stabilizers. Although there are many advantages to using multiple lines, their use can be quite time and gear intensive, and requires suitable anchor points within the tree(s) for employment. Therefore, they are best used only in situations where they will truly make the rigging operation safer and more efficient.
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