Static line

Static line

A static line is a fixed cord attached to a large, stable object. It is used for safety in construction and for low jumps and training in parachuting.

Use in parachuting

Static lines are used in order to make sure that a parachute is deployed immediately after leaving the plane, regardless of any actions taken by the parachutist. However the parachutist must adopt and maintain a suitable body position throughout deployment to minimise the chances of a parachute malfunction. This method of parachute deployment is commonly used in several ways:
*Training student skydiversPoynter, Dan (1993). "Parachuting Manual With Log for the Static Line Course." Para Publishing, ISBN 978-0915516841]
*BASE jumping
*Military paratroopers jumping from very low altitudes (400+ feet or 122+ meters)United States Army (2003). U.S. Army FM 3-21.220 Static Line Parachuting Techniques And Tactics: Training Handbook On Parachute Jumping, Jumpmaster, Drop Zone, Airborne Operations, Military Team, Aircraft, and Combat Equipment Loads: Field Manual Reference Guide. ASIN B0006FHA5W]

Static line jumping carries risk of injuryCraig SC, Lee T. Attention to detail: injuries at altitude among U.S. Army Military static line parachutists. Mil Med. 2000 Apr;165(4):268-71.] that, according to one study, doubles when performed in combat.Farrow GB. Military static line parachute injuries. Aust N Z J Surg. 1992 Mar;62(3):209-14. ]

For training students in civilian operations, modifications to existing static line equipment may be made to simplify operations. One such modification is to attach the deployment bag to the parachute instead of the static line, which also requires some modification to allow the static line to detach, typically a Velcro fastener. This leaves much less material "in the wind" behind the plane after the jumper has left; this isn't a problem for larger cargo aircraft used in military jumping, but presents a major issue for smaller aircraft used in civilian operations. This modification also results in a somewhat slower opening, which softens the opening shock at the cost of altitude, a minor concern for jumpers exiting at convert|2800|ft|m|abbr=on.

Use in construction

In construction, a static line is a safety measure consisting of a cable race fixed to a roof at intervals to which a safety harness may be tethered.

References

External links

* [http://www.staticlinemagazine.com/ Static Line] Monthly publication since 1947 for, by and about paratroopers, glidertroopers, air assault troopers.
* [http://www.corephotography.co.uk/ Core Photography] Specialising in static line and freefall skydive photography
* [http://www.armyparatrooper.org ArmyParatrooper.org] Unofficial headquarters of military Paratroopers, past and present.


Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Static Line — was an email based ASCII Ezine that focused on the PC demoscene. It was a monthly publication with strong roots in the music aspect of the demoscene. It ran for 52 issues starting in July 1998 and finishing in March 2004. Static Line was created… …   Wikipedia

  • static line — A line with one end fixed to the aircraft and the other attached to the release pins of a parachute, so that the parachute opens automatically immediately after the parachutist has jumped. See also static cable …   Aviation dictionary

  • static line — stat′ic line n. mil a line attached to a parachute pack and to an aircraft that opens the parachute automatically once it is outside the aircraft …   From formal English to slang

  • static line — Mil. a line attached to a parachute pack and to a cable in an aircraft for the purpose of automatically opening the parachute after it is dropped. [1925 30] * * * …   Universalium

  • static line (air transport) — A line attached to a parachute pack and to a strop or anchor cable in an aircraft so that, when the load is dropped, the parachute is deployed automatically …   Military dictionary

  • static line — noun Date: 1930 a cord attached to a parachute pack and to an airplane to open the parachute after a jumper clears the plane …   New Collegiate Dictionary

  • static line — noun The cord attached from the parachute pack to the plane, used to automatically deploy the parachute …   Wiktionary

  • static line — noun a cord used instead of a rip cord for opening a parachute, attached at one end to the aircraft and temporarily snapped to the parachute at the other …   English new terms dictionary

  • static line — noun a cord used instead of a ripcord to open a parachute; the cord is attached at one end to the aircraft and temporarily attached to the pack of a parachute at the other; it opens the parachute after the jumper is clear of the plane • Hypernyms …   Useful english dictionary

  • Reserve static line — A reserve static line, occasionally called a Steven s Lanyard, 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… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”