| 词条 | Speed skiing |
| 释义 |
Speed skiing is the sport of skiing downhill in a straight line at as high a speed as possible, as timed over a fixed stretch of ski slope. There are two types of contest: breaking an existing speed record or having the fastest run at a given competition. Speed skiers regularly exceed {{convert|200|km/h|mph||round=5}}. HistorySpeed skiing dates from 1898 with a run by Californian, Tommy Todd, reported at {{convert|87|mi/h|km/h}}. Official records began with a 1932 {{convert|89|mi/h|km/h|adj=on}} run by Leo Gasperi. It was a demonstration sport at the Albertville 1992 Winter Olympics in the Les Arcs speed skiing course.[1] DescriptionSpeed skiing is practiced on steep, specially designed courses {{convert|1|km|sp=us|spell=in}} long. There are approximately thirty of these courses worldwide, many of them at high altitudes to minimize air resistance. The first {{convert|300|or|400|m|abbr=on}} of the course (the launching area) is used to gain speed, the top speed is measured in the next {{convert|100|m|abbr=on}} (the timing zone) and the last {{convert|500|m|abbr=on}} (the run-out area) is used for slowing down and coming to a stop. The start point in FIS races is chosen so that, in theory, skiers should not exceed {{convert|200|km/h|mi/h}}, hence competition is aimed at winning a particular event, not breaking world speed records. At Pro races, there is no maximum speed and the speed attained is determined by conditions and safety.[1] EquipmentSpeed skiers wear dense foam fairings on their lower legs and aerodynamic helmets to increase streamlining. Their ski suits are made from air-tight latex or have a polyurethane coating to reduce wind resistance, with only a minimal (but mandatory) back protector to give some protection in the case of a crash.[1] The special skis used must be {{convert|240|cm|in|sp=us}} long and at most {{convert|10|cm|in|abbr=on}} wide with a maximum weight of {{convert|15|kg|abbr=on}} for the pair. Ski boots are attached to the skis by bindings. The ski poles are bent to shape around the body, and must be a minimum of {{convert|1|m|abbr=on}} long.[1] Official world recordsThe following records were set in 2016 under FSV (France Ski de Vitesse) rules at Vars, France on March 26, 2016:[2]
See also
References1. ^1 2 3 {{cite book | last = Lipsyte | first = Robert | editor-last = Vizard | editor-first = Frank | title = Why a Curveball Curves: The Incredible Science of Sports | publisher = Sterling Publishing Company, Inc. | series = Popular mechanics | date = 2009 | location = | pages = 224 | url = https://books.google.com/books?id=-q9M4pe3kmUC&pg=PA173&dq=FIS+speed+skiing&hl=en&sa=X&ved=0ahUKEwid0NLbmLvSAhUs0YMKHU1ZBWsQ6AEILDAE#v=onepage&q=FIS%20speed%20skiing&f=false | isbn = 9781588167941 }} {{Extreme sports}}{{skiing}}{{DEFAULTSORT:Speed Skiing}}2. ^{{cite news | last = Editors | first = | title = Weltrekorde in italienischer Hand | newspaper = ORF.Sport | location = Vienna | language = German | publisher = Österreichischer Rundfunk | date = March 23, 2016 | url = http://sport.orf.at/stories/2248490/2248489/ | access-date = 2017-03-03}} 3 : Speed skiing|Former Winter Olympic sports|1898 introductions |
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