Page 92 - Rappelling
P. 92
Autoblock
Sometimes called the “third hand,” the autoblock is
used to back up your brake hand when rappelling.
Tie it with your loop of 5mm- or 6mm-diameter
nylon cord wrapped three or four times around the
climbing rope. When I tie it on a single strand of
10mm-diameter rope, I usually make four wraps.
For a rappel backup on a doubled 10mm rope, I
usually go with three wraps.
The autoblock with nylon cord.
The Sterling Hollow Block, shown here
wrapped in an autoblock configuration,
is a 100 percent Technora sling designed
specifically for use with friction hitches.
Knots 81
Rappelling_i-174_3pp_CS55le.indd 81 7/24/13 10:17 AM
