Snow Fluke: What is a fluke and how is it used?
Snow flukes are square or slightly rectangular pieces of metal, about 8″ x 10″. A piece of cable is attached at two points. Snow Flukes Snow flukes are less predictable than T slots and pickets because they are designed to move when loaded. By moving deeper into the snow when force is applied they theoretically become stronger. This movement, however, may cause them to shear through the snow if the load is applied from the side or if there are variations in snow layers. Layers of dense snow or ice can cause flukes to deflect or skate along the layer rather than digging deeper, also compromising the strength of a placement. Flukes are aligned at a 40 – 45 degree negative angle then hammered or pushed into the snow. The cable should run freely through the snow and should not lie over obstructions or hard layers which might cause it to lever the fluke upwards. A long sling is recommended to minimize any outward or upward pull.