Paragliding is the recreational and competitive adventure sport of flying paragliders: lightweight, free-flying,
foot-launched glider aircraft with no rigid primary structure.[1] The pilot sits in a harness suspended below a fabric wing. Wing shape is maintained by the suspension lines, the pressure of air entering vents in the front of the wing, and the aerodynamic forces of the air flowing over the outside.
Despite not using an engine, paragliderflights can last many hours and cover many hundreds of kilometres, though flights of one to two hours and covering some tens of kilometres are more the norm. By skillful exploitation of sources of lift, the pilot may gain height,
often climbing to altitudes of a few thousand metres.
嘉定區(qū)進(jìn)口滑翔傘價格
Launching
Paraglider towed launch, Miros?awice,
Poland
A paraglider landing at Azheekkod beach,
India
As with all aircraft, launching and landing
are done into wind. The wing is placed into an airstream, either by running or
being pulled, or an existing wind. The wing moves up over the pilot into a
position in which it can carry the passenger. The pilot is then lifted from the
ground and, after a safety period, can sit down into his harness. Unlike
skydivers, paragliders, like hang gliders, do not "jump" at any time
during this process. There are two launching techniques used on higher
ground[20] and one assisted launch technique used in flatland areas:
徐匯區(qū)通用滑翔傘哪家好
滑翔傘拖曳發(fā)射，波蘭米羅斯瓦維采
滑翔傘降落在印度Azheekkod海灘
與所有飛機(jī)一樣，發(fā)射和降落都是在風(fēng)中完成的。機(jī)翼通過奔跑或被拉動或存在的風(fēng)被置于氣流中。機(jī)翼在飛行員上方向上移動到可以運載乘客的位置。然后將飛行員從地面抬起，經(jīng)過一段安全時期后，可以坐在他的安全帶中。與跳傘運動員不同，滑翔傘與懸掛式滑翔傘一樣，在此過程中不會隨時“跳”起來。在高地上使用了兩種發(fā)射技術(shù)[20]，在平地地區(qū)使用了一種輔助發(fā)射技術(shù)：
向前發(fā)射
在低風(fēng)中，機(jī)翼通過向前發(fā)射而膨脹，飛行員在前進(jìn)時將機(jī)翼向后移動，以便向前運動產(chǎn)生的氣壓使機(jī)翼膨脹。
這通常更容易，因為飛行員只需要向前跑，但是飛行員直到機(jī)翼上方都看不到他的機(jī)翼為止，在那里他必須在很短的時間內(nèi)檢查一下機(jī)翼，以確保發(fā)射前有正確的充氣和不糾纏的線。
In some modern paragliders (from the 1990s
onwards), especially higher-performance wings, some of the cells of the leading
edge are closed to form a cleaner aerodynamic profile. Holes in the internal
ribs allow a free flow of air from the open cells to these closed cells to
inflate them, and also to the wingtips, which are also closed.[13]
The pilot is supported underneath the wing
by a network of suspension lines. These start with two sets of risers made of
short (40 cm) lengths of strong webbing. Each set is attached to the harness by
a carabiner, one on each side of the pilot, and each riser of a set is generally
attached to lines from only one row of its side of wing. At the end of each
riser of the set, there is a small delta maillon with a number (2 – 5) of lines
attached, forming a fan. These are typically 4 – 5 metres long, with the end
attached to 2 ? 4 further lines of around 2 m, which are again joined to a
group of smaller, thinner lines. In some cases this is repeated for a fourth
cascade.
A paragliding flight over the Mussel Rock
Gliding Bluffs in Pacifica, California
In
flatter countryside, pilots can also be launched with a tow. Once at full
height (towing can launch pilots up to 3000 feet altitude), the pilot pulls a
release cord, and the towline falls away. This requires separate training, as
flying on a winch has quite different characteristics from free flying. There
are two major ways to tow: pay-in and pay-out towing. Pay-in towing involves a
stationary winch that winds in the towline and thereby pulls the pilot in the
air. The distance between winch and pilot at the start is around 500 metres or
more. Pay-out towing involves a moving object, like a car or a boat, that pays
out line slower than the speed of the object, thereby pulling the pilot up in
the air. In both cases, it is very important to have a gauge indicating line
tension to avoid pulling the pilot out of the air. Another form of towing is
"static line" towing. This involves a moving object, like a car or a
boat, attached to a paraglider or hang glider with a fixed-length line. 楊浦區(qū)銷售滑翔傘要多少錢
嘉定區(qū)進(jìn)口滑翔傘價格
Europe has seen the greatest growth in
paragliding, with France alone registering in 2011 over 25,000 active pilots.
Wing
Cross section of a paraglider
Transverse cross section showing parts of a
paraglider:
1) upper surface
2) lower surface
3) rib
4) diagonal rib
5) upper line cascade
6) middle line cascade
7) lower line cascade
8) risers
The paraglider wing or canopy is usually
what is known in engineering as a "ram-air airfoil". Such wings
comprise two layers of fabric that are connected to internal supporting
material in such a way as to form a row of cells. By leaving most of the cells
open only at the leading edge, incoming air keeps the wing inflated, thus
maintaining its shape. When inflated, the wing's cross-section has the typical
teardrop aerofoil shape. Modern paraglider wings are made of high-performance
non-porous materials such as ripstop polyester[12] or nylon fabric.[note 1]
嘉定區(qū)進(jìn)口滑翔傘價格
上海翼舞航空科技有限公司主要經(jīng)營范圍是運動、休閑，擁有一支專業(yè)技術(shù)團(tuán)隊和良好的市場口碑。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下動力傘，滑翔傘，飛行，熱汽球深受客戶的喜愛。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造運動、休閑良好品牌。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗，為客戶成功提供堅實有力的支持。