Tracking (freeflying)

Tracking, a basic freefall skill learned by a novice skydiver, is the technique of assuming a body position that allows the skydiver to move horizontally while freefalling.

Although there are many variations of the basic body position it essentially involves the skydiver moving out of the traditional face-to-earth & arched position, and straightening the legs, bringing the arms to the sides and de-arching, using the body to cup the air as a means of providing greater lift. There is, however, debate over what exactly constitutes the most efficient tracking position (providing the best glide ratio) especially concerning how far (if at all) the skydiver's legs should be spread. Some variations of the tracking position work well for some individuals and not so well for others. Also, when a skydiver gains experience, his or her preferred body position often changes.

It is claimed that good trackers can cover nearly as much ground as the distance they fall, approaching a glide ratio of 1:1. It is known that the fall rate of a skydiver in an efficient track is significantly lower than that of one falling in a traditional face-to-earth position; the former reaching speeds as low as 90 mph, the latter averaging around the 120 mph mark.

Tracking is regarded as an essential life saving skill for all freefall skydivers engaging in relative work with others, allowing the jumpers to gain horizontal separation after building a formation and before opening their parachutes. Accordingly, the greater the number of skydivers on a jump, the better their tracking skills must be. In addition to having to track a longer distance after break-off (tracking away for separation before opening), they also have to be more aware of other jumpers around them and have to be able to track in a straight line away from the center of the formation.

Tracking is not however purely a life saving skill; many skydivers participate in ‘tracking dives’ where the whole skydive until break-off will be spent tracking. On all tracking dives there should be a designated leader, usually the most proficient tracker, who will plan the horizontal trajectory of the dive and will usually act as a "rabbit" (often tracking on his back). This serves several purposes; first of all, the other trackers will have a target to chase, gauge their relative horizontal speed on and potentially take grips upon. Second, the "rabbit" will be responsible for the heading of the tracking dive, keeping the group away from other groups of skydivers. Finally, he will signal break-off in an area from where everyone will be able to safely fly back to the drop zone landing area under canopy.

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Wikipedia