james_gray wrote:p.s what's this carving business about? can it be done on rental skis? or do they need to have special edges? this year i did an hours snowboarding lesson and can get down a hill (beginners, green), turning etc, can i utilize the turning, balancing and edging technique in skiing?
Carving is making a turn without skidding. A well carved turn on skis will leave two pencil lines in the snow, and on a snowboard, one deeper pencil line. When a ski skids, energy is dissapated and wasted, ie. speed is lost. Carving eliminates the waste. The carved turn is made possible by the sidecut of the ski or board, that is the inward curved shape of the edge. This can be measured by the radius of that curve. A sharp turning ski might have a 11metre radius, a medium turning ski, a 15metre radius. Under the outward forces of the turn the inclined ski "decambers" or bends. The true radius of the turn is much less than the sidecut.
The forces generated by these turns are significant. As the ski or board recambers when the turn ends and the forces are released, it is like bouncing off a trampoline. These forces may be directed into the next turn or allowed to lift the skier/boarder into the air. On alpine snowboards it is common for a rider to change edges mid air between turns.
Carving can turn the most boring blue run into an adreneline rush as you push the limits of edge hold and harness the forces of physics.
Extreme carving on a snowboard can be seen here http://www.extremecarving.com/movies/movies.html
Download opus 3 or 4 , they are great to watch
Trencher