Air is a fluid which becomes efficient at high speed. In stable freefall position this speed can be 50 m/s, that's to say 180 km/h. To be able to evolve in freefall, one uses the support from the air pressure. Although each one has to find the position correspondong to his own morphology, several key points may be applied to achieve a stable and neutral position :

• hips down
• general symmetry
• arms symmetrical at 90°
• legs symmetrical, slightly split
• head up looking at the horizon
• tibias slightly pressing on the air, toes up

Finally one has to be tonic without being tence. It's up to one self to control the air and not the other way around. Once the positon is taken, the flow of air will help maintaining it without any effort.

Upper body :

One as to push his hips down to get a low center of gravity. This is the basic element of stability. It's called 'arching'.

The head has to be up, looking at the horizon. In fact, holding the head up intensifies the arching and opens the chest, improving the body anchoring on the air.

General symmetry :

One has to take a symmetrical position on the air stream in order to stay neutral. Not being symmetrical causes movement : lateral dissymmetry induces a rotation, dissymmetry of the font-back pressure causes a slip. On the other hand, intensified dissymmetry induces movements around the three axes. These movements do not present a problem whenever ... they are controlled !

Arms :

The arms have to be symmetrical. They are bent 90°, the elbows being line up with the shoulders. This creates a lateral stability.

The hands, flat, are placed slightly forward but not to much (increasing the air pressure in front causes one to slip backward). The hands are placed just in eyesight.

Legs :

The legs also have to be symmetrical. You will have better sensation of the air pressure on your arms than on on your legs. Therefore, pushing the tibias slightly on the air helps feeling its pressure. On top of that, the position of the legs cannot be visually checked. The legs have to be slightly split in order to obtain lateral stability. However, legs should not be too much spiltted for having legs apart prevents one from performing the essential movement of a stable position : putting his hips down.

The toes are pointed towards the sky. This lifts the knees and induces tonicity in the whole legs by contracting their muscles.