Least Resistance Training Concepts
(LRTC)

Volunteers Training for Emergencies

  LRTC Emergency Response Team
INFORMATION SHEET

Practical Rope Systems Applications

Part Seven

This feature is a continuation of Part One which explains the concepts for this discussion.

  DESCENDING TECHNIQUES

FIGURE-8 DESCENDER

During most operations we tend to go up and down slopes using a hand-over-hand method on a properly anchored 13mm rope. However on steeper slopes or in delicate situations where the rescue subject is close to the slope base, and particularly when packing gear, descents can be safer and more controlled when using a friction device. The figure-8 descender is an easy to use device for controlling descents and for "locking in" when operating mid-slope.

Figure-8 descenders are relatively easy to use and they are extremely reliable, but there are a few basic safety protocols that must be followed.

Proper gloves must always be worn.

As with any friction device, care must be taken not to let fingers get pulled into the device when under a load.

Always maintain some friction. Don't "free fall."

Always double check the rigging of the descender when "locking off."

We use CMC descenders with ears for more secure mid-slope locking.

The basic use of the figure-8 descender is relatively simple. Pass the rope through the large eye and around small eye before attaching the descender to the harness for lowering. Consider which arm you are going to use to apply friction when passing the rope through to prevent the rope rubbing against itself.

Passing the rope through the large eye and around the small eye.

Basic technique for Locking off mid-slope.

Locked off. Hands free to execute tasks, to lower gear, etc.

For more complete illustrations involving the proper use of the figure-8 descender, please view this video made by Paul Tarsitano. (While we don't typically engage in the high angle operations shown in the video, the operating principles are similar.)


BRAKE BAR RACK

The brake rack (also called a rack or brake bar rack) is an excellent device for controlling the descent of a load. The rope is woven around the movable bars in the rack and friction can either be increased or decreased as needed by how the bitter end of the rope is positioned.

Ken Knutson of Santa Clara SAR illustrates the proper rigging and use of the same type of brake bar rack using a GoPro that provides the perspective of the user.


Continue to "Load and Go" Scenarios

Return to Part Six

Return to Part One


Return to Information Sheets and Resource Guides

Return to Sample Incident Responses

Return to LRTC TLAR / EVAC Page

The training information presented in these information sheets and guides is offered for illustrative and volunteer refresher purposes only. It is not a substitute for actual hands-on training.

Press Back to return to the page which brought you here

Return to LRTC Wild Horse Mentors

Return to KBR Training Page

Go To KBR Horse Net