Editing BASE jumping (section)

== Technique ==
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BASE jumps can be broadly classified into low jumps and high jumps. The primary distinguishing characteristic of low BASE jumps versus high BASE jumps is the use of a [[slider (parachuting)|slider]] reefing device to control the opening speed of the parachute, and whether the jumper falls long enough to reach [[terminal velocity]].

=== Low BASE jumps ===
Low BASE jumps are those where the jumper does not reach terminal velocity. Sometimes referred to as "slider down" jumps because they are typically performed without a [[Slider (parachuting)|slider]] reefing device on the parachute. The lack of a slider enables the parachute to open more quickly. Other techniques for low BASE jumps include the use of a [[static line]], direct bag, or P.C.A. (pilot chute assist). These devices form an attachment between the parachute and the jump platform, which stretches out the parachute and suspension lines as the jumper falls, before separating and allowing the parachute to inflate. This enables the very lowest jumps—below {{convert|60|m}} to be made. It is common in the UK to jump from around the {{convert|150|ft|-1|disp=flip}} mark, due to the number of low cliffs at this height. Base jumpers have been known to jump from objects as low as {{convert|100|ft|-1|disp=flip}}, which leaves little to no canopy time and requires an immediate flare to land safely.

=== High BASE jumps ===
[[File:Wingsuit men getting ready.jpg|thumb|Wingsuit pilots getting ready to jump]]

Many BASE jumpers are motivated to make jumps from higher objects involving [[free fall]]. High BASE jumps are those which are high enough for the jumper to reach terminal velocity. High BASE jumps are often called "slider up" jumps due to the use of a slider reefing device.
High BASE jumps present different hazards than low BASE jumps. With greater height and airspeed, jumpers can fly away from the cliff during freefall, allowing them to deploy their parachute far away from the cliff they jumped from and significantly reduce the chance of object striking. However, high BASE jumps also present new hazards such as complications resulting from the use of a [[Wingsuit flying|wingsuit]].

=== Tandem BASE jumps ===
Tandem BASE jumping is when a skilled pilot jumps with a passenger attached to their front. It is similar to skydiving and is offered in the US and many other countries. Tandem BASE is becoming a more accessible and legal form of BASE jumping.