Aerials skiing
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[edit] About
Aerialists ski off jumps, usually built of wood and then covered with snow, that propel them up to 40-50 feet in the air. Once in the air, professional aerialists perform multiple flips and twists before landing on a 34- to 39-degree inclined landing hill about 100 feet in length. The top male aerialists can currently perform triple back flips with up to four or five twists. Quadruple back flips have been performed on snow, but currently (2006) they are not legal in competition.
There are two varieties of aerial skiing competitions: upright and inverted. In upright aerials, movements in which a skier's feet come higher than his or her head are illegal. This is the most common type of aerials competition for junior competitors. In inverted aerials, skiers execute elaborate flips and somersaults.
Scoring Aerial skiing is a judged sport, and competitors are judged on jump takeoff (20%), jump form (50%) and landing (30%). A degree of difficulty (DD) is then factored in for a total score.
Summer Training Aerialists train for their jumping maneuvers during the summer months by skiing off specially constructed water ramps and landing in a large swimming pool. A water ramp consist of a wooden ramp covered with a special plastic mat that when lubricated with sprinklers allows an athlete to ski down the ramp towards a jump. The skier then skis off the wooden jump and lands safely in a large swimming pool. A burst of air is sent up from the bottom of the pool just before landing to break up the surface area of the water, thus softening the landing of the impact. Skiers sometimes reinforce the skis that they use for water-ramping with 1/4 inch of fiberglass.
Summer training also includes training on trampolines, diving boards, and other acrobatic or gymnastic training apparatuses.