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A reserve static line, occasionally called a Stevens Lanyard or Stevens Release, is a device that automatically opens the reserve parachute container when the main parachute is cut-away. The RSL is a lanyard connecting one or both of the main parachute risers to the reserve ripcord .
Invented in its original large ring form by Bill Booth, [1] and subsequently scaled down for thinner Type 17 webbing risers [2] the three-ring system allows a skydiver to quickly cut-away a malfunctioning main parachute with a single motion. Skydivers usually need to do this quickly during emergencies in which they need to deploy a reserve ...
Cutting away with the 3-ring release is done by pulling a handle placed on the main lift web of the harness. In some cases, parts of the malfunctioning main parachute may be tangled with the skydiver, in which case it may be necessary to use a hook knife to literally cut away the main.
Effectively, the jumper drags the parachute behind him, causing the upward-rushing wind to force open and inflate the canopy. The canopy should inflate and begin supporting the jumper within four seconds. In the unlikely event of a malfunction, students are taught how to cut away the main canopy and deploy the reserve chute.
A main assisted reserve deployment (MARD) system is a skydiving safety device for parachute systems. While there are many variations, the operation and intended outcome for each is the same: open the reserve parachute container and extract the reserve parachute's deployment bag (and parachute) using the jettisoned main canopy.
3: Skydiver fights for main canopy. Main and reserve canopies assume biplane position (one of two possible positions where both canopies can work together). A malfunction [1] is a partial or total failure of a parachuting device to operate as intended. Malfunctions may require a skydiver to cut away their main parachute and deploy the reserve ...
CYPRES II panel. In skydiving, an automatic activation device (AAD) is a dead man's switch consisting of an electronic-pyrotechnic or mechanical device that automatically activates the opening sequence of the main or reserve parachute container when the AAD is falling below a preset altitude and above a preset decent speed.
US Army paratroopers utilizing the T-10D Parachute during an airborne operation from a C-130. The T-10 Parachute is a series of static line-deployed parachutes used by the militaries for combat mass-assault airborne operations and training. The T-10 parachute was introduced in the early 1950s. In 1976, the B model introduced the anti-inversion ...