Chapter 3

WIRED SNOW ANCHORS
3-48. The wired snow anchor (or fluke anchor) provides security for climbers and equipment in operations
involving steep ascents by burying the snow anchor into deep snow (Figure 3-28). The fluted anchor
portion of the snow anchor is made of aluminum. The wired portion is made of either galvanized steel or
stainless steel. Fluke anchors are available in various sizes―their holding ability generally increases with
size. They are available with bent faces, flanged sides, and fixed cables.

Type I is 22 by 14 centimeters. Minimum breaking strength of the swaged wire loop is
600 kilograms.

Type II is 25 by 20 centimeters. Minimum breaking strength of the swaged wire loop is
1,000 kilograms.

The wired snow anchor should be inspected for cracks, broken wire strands, and slippage of the
wire through the swage. If any cracks, broken wire strands, or slippage is noticed, the snow
anchor should be turned in.

SNOW PICKET
3-49. The snow picket is used in constructing anchors in snow and ice (Figure 3-28). The snow picket is
made of a strong aluminum alloy 3 millimeters thick by 4 centimeters wide, and 45 to 90 centimeters long.
They can be angled or T–section stakes. The picket should be inspected for bends, chips, cracks,
mushrooming ends, and other deformities. The ends should be filed smooth. If bent or cracked, the picket
should be turned in for replacement.

Figure 3-28. Snow anchors, flukes, and pickets.

SUSTAINABILITY EQUIPMENT
3-50. This paragraph describes all additional equipment not directly involved with climbing. This
equipment is used for safety (avalanche equipment, wands), bivouacs, movement, and carrying gear. While
not all of it will need to be carried on all missions, having the equipment available and knowing how to use
it correctly will enhance the unit’s capability in mountainous terrain.

3-24

TC 3-97.61

26 July 2012