Alpine Skills Manual 34 | 2005

Page 96

Snow and Ice Climbing

V-threads Use V-threads in hard ice mainly for abseiling instead of leaving an ice screw behind. The strength depends on the ice depth and quality. • Drill angled holes with an ice screw. Drill the holes about 15 cm apart so that they intersect at 60 °. • Use a wire coat hanger threader to hook 7 – 8 mm cord through the hole. (Use a stronger tape sling and a karabiner to protect a lead or to anchor). • Tie the threaded cord ends together.

Pick anchor In ice, curved axe picks placed high above the belayer can provide anchor reinforcement, particularly when placing ice screws. Pick anchors have little more than static load strength.

STEEP ICE CLIMBING (PIOLET TRACTION) Figure 65: Steep ice wall climbing requires arm strength and excellent crampon technique.

87

Disclaimer: This publication is available to you for historical purposes. The content in this publication may not be up to date.


Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.