Jonline

Jonline

A Jonline is a short line used by SCUBA-divers to fasten themselves to something. For example, it is used to fasten a diver to an anchor line during decompression stops in current.

The line is typically around 1 m (3 feet) long and equipped with a clip at each end. One clip is fastened to the diver's harness, and the other is used to fasten the line to the anchor line. In current this relieves the diver from holding on to the anchor line during the decompression stop.

The jonline is named after Jon Hulburt, who is credited with its invention. ["Advanced Wreck Diving", Gary Gentile, ISBN 0-87033-380-1, page 60]

A jonline is also often used to tether the diver's equipment to the dive boat after the dive. This enables the diver to get out of his equipment before entering the boat.

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Decompression (diving) — Divers decompressing in the water at the end of a dive Decompression in the context of diving derives from the reduction in ambient pressure experienced by the diver during the ascent at the end of a dive or hyperbaric exposure and refers to both …   Wikipedia

  • Decompression sickness — Caisson disease [decompression sickness] Classification and external resources Two United States Navy sailors prepare for training inside a decompression chamber …   Wikipedia

  • Taser — A Taser is an electroshock weapon that uses Electro Muscular Disruption (EMD) technology [International Association of Chiefs of Police, [http://www.theiacp.org/research/CuttingEdge/EMDT9Steps.pdf Electro Muscular Disruption Technology: A Nine… …   Wikipedia

  • Technical diving — Technical diver during a decompression stop. Technical diving (sometimes referred to as Tec diving) is a form of scuba diving that exceeds the scope of recreational diving (although the vast majority of technical divers dive for recreation and… …   Wikipedia

  • Deep diving — The meaning of the term deep diving is a form of technical diving.[1] It is defined by the level of the diver s diver training, diving equipment, breathing gas, and surface support: in recreational diving, PADI define anything from 18 metres / 60 …   Wikipedia

  • Dive computer — A watch sized dive computer incorporating an electronic compass and the ability to display cylinder pressure when used with an optional transmitter (Suunto D9) A dive computer or decompression meter is a device used by a scuba diver to measure… …   Wikipedia

  • Decompression stop — A decompression stop is a period of time a diver must spend at a constant depth in shallow water at the end of a dive to safely eliminate absorbed inert gases from the diver s body to avoid decompression sickness.cite book |title=Bennett and… …   Wikipedia

  • Diving chamber — The decompression chamber at the Neutral Buoyancy Lab A diving chamber has two main functions: as a simpler form of submersible vessel to take divers underwater and to provide a temporary base and retrieval system in the depths; as a land or ship …   Wikipedia

  • Francis Alexander — (February 3, 1800 – 1881) was an American portrait painter. He was born in Killingly, Connecticut. Brought up on a farm, he taught himself the use of colors, and in 1820 went to New York City and studied painting with Alexander Robertson. He… …   Wikipedia

  • Louisville Metro Council — The Louisville Metro Council is the city legislature of Louisville, Kentucky (Louisville Metro). It was formally established in January 2003 upon the merger of the former City of Louisville with Jefferson County and replaced the city s Board of… …   Wikipedia

Share the article and excerpts

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