Editing BASE jumping (section)

{{Short description|Sport of jumping from fixed objects using a parachute}}
[[File:Base jump.webm|thumb|upright=1.2|BASE jump in Oman, 2013]]
[[File:BASE Jumping from Sapphire Tower in Istanbul.jpg|thumb|upright=1.2|BASE jumping from [[Istanbul Sapphire|Sapphire Tower]], [[Istanbul]]]]

'''BASE jumping''' ({{IPAc-en|b|eɪ|s}}) is the recreational sport of jumping from fixed objects, using a [[parachute]] to descend to the ground. BASE is an [[acronym]] that stands for four categories of fixed objects from which one can jump: [[building]]s, [[antenna (radio)|antennas]] (referring to [[radio masts and towers|radio masts]]), [[span (engineering)|spans]] ([[bridge]]s) and earth ([[cliff]]s).<ref>{{cite web| url=http://www.basenumbers.org/ |title=BASENumbers.org |publisher=BASENumbers.org |access-date=2014-02-03}}</ref><ref>{{cite web |author=Sangiro |url=http://www.basejumper.com/ |title=BASE Jumping Resource and Community |publisher=Basejumper.com |access-date=2014-02-03 |archive-date=2017-08-15 |archive-url=https://web.archive.org/web/20170815085600/http://www.basejumper.com/ |url-status=dead }}</ref> Participants jump from a fixed object such as a cliff and after an optional [[freefall]] delay deploy a parachute to slow their descent and land. A popular form of BASE jumping is [[Wingsuit flying#Wingsuit_BASE|wingsuit BASE jumping]].

In contrast to other forms of [[parachuting]], such as [[skydiving]] from airplanes, BASE jumps are performed from fixed objects that are generally at much lower altitudes, and BASE jumpers only carry one parachute.
BASE jumping is significantly more hazardous than other forms of parachuting and is widely considered to be one of the most dangerous [[extreme sports]].<ref name="ch-trib-thrill">{{cite news |last=Dizikes |first=Cynthia |date=22 April 2011 |title=BASE jumpers fall for thrill-seeking lifestyle |work=[[Chicago Tribune]] |url=http://www.chicagotribune.com/news/ct-xpm-2011-04-22-ct-met-basejumping-20110421-story.html |url-status=dead |archive-url=https://web.archive.org/web/20181018122637/http://www.chicagotribune.com/news/ct-xpm-2011-04-22-ct-met-basejumping-20110421-story.html |archive-date=18 October 2018}}</ref>