The first time most people get the sensation of flying is when you are on a swing. That is how the folks of the Red Bull Skydive Team think of it, anyway. They like to experience their childhoods with an enormous rope swing hanging from a hot air balloon. The 4 skydivers needed a 125m long line with a seat on the end and 2 hot air balloons to create the Mega Swing Red Bull.
At about 1,500 meters above the ground, one balloon became the support for the swing, as the skydivers leaped from another balloon.
The team needed not just best weather, but professional hot air balloon pilots. The 2 balloons had to be precisely at the appropriate distance separately to have the best pressure in the swing before doing the jump.
You can observe the Mega Swing in action in the video clip below.