Aerials is one of the events of the disciplines of Freestyle Skiing.
- Competition Format
- Aerial Rules and Procedures
- Aerial Judging
- Aerial Tie-Break Rules
- Aerial Penalties / Disqualification Rules
All competitors compete in a qualification phase consisting of one or two rounds. The top 10 to 12 ladies and men will qualify for the finals.
The Finals consist of two rounds. In the finals, the competitors will run in reverse order of their qualification rank. The remainder of the field will be ranked according to the results in the qualification round.
In the case of severe weather conditions either phase (qualification or finals) may be shortened to one round, or only the finals may take place.
Aerial Rules and Procedures:
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.
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.
Aerial competition consists of two different acrobatic jumps from a prepared jump, stressing take-off, height and distance (referred to as air), proper style, execution and precision of movement (referred to as form) and landing.
Air makes up 20 percent of the score. Form makes up 50 percent of the score. Landing makes up 30 percent of the score.
The judging panel consists of seven judges, who evaluate take-off, height and distance, form and twisting technique during the somersaults and precision of landing.
Five judges score take-off (known as air) and form, with the high and low scores being discarded and the remaining three scores added together.
Two judges score landing, with the average of the two scores multiplied by three to obtain the overall landing score.
The landing score is added to the three air/form scores and multiplied by the appropriate Degree of Difficulty (DD) to determine the total score for each jump.
Scores from both jumps are added together to obtain the final result. If the second round cannot be held (e.g. due to weather problems), then the results from the first round may be used to determine the final result.
Aerial Tie-Break Rules
In the case of a tie, the highest single scoring jump will determine the winner. If the tie cannot be broken by this procedure, both competitors will receive the same place.
Aerial Penalties / Disqualification Rules
The competitor must announce his/her planned jump immediately before entering the starting gate.
If this manoeuvre is not performed, the competitor may receive no score (RNS).
If a competitor is disqualified due to unsportsmanlike behaviour his or her results from the entire competition will be removed and he or she will be listed at the bottom of the classification with no final ranking.