Even skydiving has an expansion form, called freeflying, in which the traditional position of belly-to-earth is extended vertically into an upright position that can be either head or feet first. This increases the speed of the freefall. It also makes it possible to create new formations and routines.
The first thing a freeflyer needs to learn is to control the forms used in skydiving so that (she)he can completely understand the aerodynamics of the body when in freefall. These forms include: box position (traditional), back flying, head-up, head-down and side flying. However, the diver does not maintain these positions for the entire freefall. Unlike skydiving, freeflying often involves constant changes in both position and speed. For example, this can be a static skydive within a freefly position or a flowing one in which all positions are experimented during the dive.
However, freeflying also has dangers that regular skydiving does not as a result for the potentially increased horizontal speeds of the diver. Therefore, freefall groups are vigilant of the traditional belly-to-earth skydivers so that they can avoid collisions. Another potential danger is that freeflyers have to change back to the belly-to-earth position while also slowing down their fall for a few seconds before they are able to deploy their parachutes. Freeflying is a more extreme version of skydiving and is younger. However, it is quickly increasing in popularity for competitions and world records