Howdy, just posted this to another sub-forum for some folks, thought maybe I should put it here as well.


Aight, so I put some materials together.

In order to rig an anchor point with a built-in easy changeover for turning into a rescue haul system, you'll want to set it up like this.







As stated, this not only maintains a higher percentage of the strength rating of your rope, but it also adds a very simple method of bleeding off force under an unintended dynamic load.
(as such, it is an excellent way to start rigging ALL of your anchors)

In the even of either an emergency when someone needs to be hauled up, or even to assist a person who is having trouble:

Put a pulley on the line in the limp leg area between the prussik and the main rope's figure 8 knot, then clip it to the anchor biner using a separate carabiner.

Clip a carabiner with your haul system into the anchor carabiner, pull out some length in the haul system and attach the lower end to the main rope using another prussik.

Unclip the main rope figure 8 knot from the anchor carabiner (this is best done if you rig it as shown in the first picture, with the figure 8 knot in "front" of the prussik, on the carabiner's gate side)

Untie the main figure 8 knot.

While one person pulls on the haul system to raise the load, the other person holds onto the primary prussik lightly to allow the main rope to slide up through it.

When your haul system is pulled all the way in, allow a tiny bit of slack back out so that the main rope prussik takes up the weight, then slide the haul prussik back down on the main rope and lengthen the haul system to its full extension again. Repeat this process until the person is raised all the way up and safely off-rope.

Alternately, with the main rope going over the pulley you clipped in, you can create a haul system on the other leg of the main rope (the side opposite the load), or in a pinch you can put a bunch of people on that rope and have them pull together; making sure that at least one person is tending the main rope's prussik knot so that the rope will slide through it easily.


Clipping of additional pieces at the anchor biner is greatly simplified by using a rigging plate "paw" of some kind. I know probably none of you guys have one though, so you can just make do using other carabiners. But it's a cheap addition to your gear load-out and comes in handy when you need to do multiple rigging off a common anchor point.