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vRigger Learning Center

This also applies to cable, chain, and webbing.

Gear that is anchored includes anchors, rocks, trees, tripods, trucks, etc.

A "bight" is a simple loop in a rope that does not cross itself.

A "bend" is a knot that joins two ropes together. Bends can only be attached to the end of a rope.

A "hitch" is a type of knot that must be tied around another object.

"Descending devices" (e.g., ATCs, Brake Bar Racks, Figure 8s, Rescue 8s, etc) create friction as their primary purpose. The friction in descending devices is always considered when calculating forces.

The "Safety Factor" is the ratio between the gear's breaking strength and the maximum load applied to the gear (e.g., 5:1).

Wingman Pulley System

The Harken Wingman pulley system is a pre-rigged, mechanical advantage kit.

The Wingman is comprised of two double-pulleys. One of the pulleys has a becket and the other acts as a progressive capture device.

Assembling an Winman in vRigger is a little challenging, because you need to attach the tiny "becket" to the becket pulley, and then drop the end of the rope on that tiny becket.

The easiest way to add a Wingman to your rigging system is to download and the Wingman.rig sample file, drag your mouse to select the Wingman (including both pulleys), copy it, and then paste it into your system. Yeah, it's a bit of a pain but easy enough once you figure it out.

(The Wingman.rig file may also be in the Documents\vRigger folder on your computer, although the downloadable sample file might be newer.)