Slider (parachuting)

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A slider is a small rectangular piece of fabric with a grommet near each corner used to control the deployment of a "ram-air" parachute. During deployment the slider slides down from the canopy to just above the risers, the slider is slowed by air resistance as it descends and reduces the rate at which the lines can spread and therefore the speed at which the canopy can open and inflate. This invention solved the rapid deployment problem with ram-air designs.

In BASE jumping, when a rapid canopy deployment is desirable, slider may be constructed of mesh, packed at a lower position on the lines "slider down" instead of up by the canopy or removed completely.