Aerial Rules and Procedures

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Aerial skiing is a judged event. Competitors jump off specially constructed snow ramps known as "kickers" performing two jumps consisting of single or multiple somersaults with or without twists.

Each jump must vary by one somersault or one twist. Points are awarded for take-off (20 percent of score), form in the air (50 percent of score) and landing (30 percent of score).

Competitors must demonstrate the most difficult type of jump they plan to perform in one of the official training sessions. Top competitors perform quintuple twisting back somersaults in the men’s event and triple twisting back somersaults in the women’s event.

Competitors need to judge their speed accurately for optimal performance, depending on snow and wind conditions. To perform triple somersaults, competitors take off at about 70 km/hr. A speed trap at the site allows competitors to measure their speed during test runs or "speed checks" down the in-run.

A countdown clock is used to inform the aerialist of when they can leave the start. Once the start sequences commence, the aerialist has fifteen (15) seconds to leave the start. Wind measurement systems are used to determine when the aerialists are allowed to start. Site

The aerial site is built to precise FIS specifications and consists of a 20 to 25 degree, 60 to 70 metre in-run, a transition area leading to a flat platform or "table" on which up to five kickers are built, ranging in height from 2.0 to 4.0 metres and in angle from 50 to 70 degrees, allowing competitors to perform single, double and triple back somersaults.

Competitors land on a steep 37 ± 1 degree landing hill of chopped snow to ensure a soft landing. The end of the table where it meets the landing hill is known as the knoll.

The site is maintained after each jump.



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