Cut-away

Cut-away is a skydiving term referring to disconnecting the main parachute from the harness-container in case of a malfunction in preparation for opening the reserve parachute. The 3-ring release system on parachutes allows a rapid cut-away in the event of an emergency.

Cutaway is also the title of a 2000 action film about skydiving.

Modern skydiving harness-containers have two containers; one for the main parachute, and another one for the reserve. These containers are built into a single "backpack", with the reserve container above the main. In case the main parachute malfunctions, it is necessary to jettison the main before deploying the reserve to avoid a main-reserve entanglement. This act of jettisoning the main is called a "cut-away".

Over the years, several different devices have been designed for cutting away the main. Among the most popular were variations of the Capewell release system, until in the 1970s, Bill Booth invented the 3-ring release. Variations of the 3-ring release can now be found on practically all sport and military free fall parachutes.

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.

An accident during the filming of the Mountain Dew "007" commercial directed by David Kellogg and recorded by Janusz Kamiński resulted in the death of noted skysurfer Rob Harris in 1995. The incident was due to an error made during an attempt to film an "intentional cut-away" (where a skydiver intentionally releases, and falls away from his primary parachute). Harris was wearing a modern sport parachute harness containing two parachutes (a "main" and a "reserve") which was modified so that a third parachute could be externally attached to the risers of his main parachute and be released in-flight via an extra "cut-away" release handle (attached to his harness near the standard main parachute release handle). It was the intention of the stunt to film Harris releasing his open "main" parachute, dropping into freefall, and deploying his "reserve" parachute (which would have actually been his real main parachute, the one he intended to land), while still having a reserve parachute in case it was required. Skydivers are required by law to always jump with one more parachute than they intend to deploy on any given jump. Since Harris planned to deploy two parachutes on this jump, he required a third.

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Wikipedia