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]
南京专业滑翔伞便宜
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.
静安区质量滑翔伞全国发货
在亚洲，日本、韩国、中国的中国台湾省等经济发达国家和地区的滑翔伞运动十分普及，爱好者达十多万人。20世纪80年代末，滑翔伞运动传入中国大陆并迅速发展，
现注册的航空俱乐部有50多个，正式会员1400多人，经常从事滑翔伞飞行者达数千人，在中国东北、长三角、珠三角长期有民间高手飞行，随着滑翔伞运动的逐渐普及，包括央视在内的很多电视媒体都对这一运动进行过专题报道。
滑翔伞通常主要由翼型伞衣、伞绳、背带系统和操纵系统四大部分组成。为便于滑翔伞的保管、携带与运输，每具滑翔伞还配有一只背式包装袋。
翼型伞衣，也称伞翼，是滑翔伞产生升力和承受载荷的主要部件。伞衣的形状、面积以及与气流相对运动的速度，对升力的产生有很大的影响。
翼型伞衣由上翼面、下翼面和沿翼展方向有规律分布的数十个成形翼肋构成。上下翼面与翼肋缝合，形成特定的伞翼形状。伞衣前缘按照翼肋的横向排列，构成一定尺寸的进气口。由于伞衣后缘是完全封闭的，所以上下翼面与各翼肋之间便形成了一个个用于储存空气的气室。
In 1952 Canadian Domina Jalbert patented a
governable gliding parachute with multi-cells and controls for lateral
glide.[2]
In 1954, Walter Neumark predicted (in an
article in Flight magazine) a time when a glider pilot would be "able to
launch himself by running over the edge of a cliff or down a slope ... whether
on a rock-climbing holiday in Skye or ski-ing in the Alps."[3]
In 1961, the French engineer Pierre
Lemongine produced improved parachute designs that led to the Para-Commander.
The PC had cutouts at the rear and sides that enabled it to be towed into the
air and steered, leading to parasailing/parascending.
Domina Jalbert invented the Parafoil, which
had sectioned cells in an aerofoil shape; an open leading edge and a closed
trailing edge, inflated by passage through the air – the ram-air design. He
filed US Patent 3131894 on January 10, 1963.[4]
The glide ratio of paragliders ranges from
9.3 for recreational wings to about 11.3 for modern competition models,[16]
reaching in some cases up to 13.[17] For comparison, a typical skydiving
parachute will achieve about 3:1 glide. A hang glider ranges from 9.5 for
recreational wings to about 16.5 for modern competition models. An idling
(gliding) Cessna 152 light aircraft will achieve 9:1. Some sailplanes can
achieve a glide ratio of up to 72:1.
The speed range of paragliders is typically
20–75 kilometres per hour (12–47 mph), from stall speed to maximum speed.
Beginner wings will be in the lower part of this range, high-performance wings
in the upper part of the range.[note 2]
For storage and carrying, the wing is
usually folded into a stuffsack (bag), which can then be stowed in a large
backpack along with the harness. For pilots who may not want the added weight
or fuss of a backpack, some modern harnesses include the ability to turn the
harness inside out such that it becomes a backpack.
长宁区销售滑翔伞价格
南京专业滑翔伞便宜
These developments were combined in June
1978 by three friends, Jean-Claude Bétemps, André Bohn and Gérard Bosson, from
Mieussy, Haute-Savoie, France. After inspiration from an article on slope
soaring in the Parachute Manual magazine by parachutist and publisher Dan
Poynter,[7] they calculated that on a suitable slope, a "square"
ram-air parachute could be inflated by running down the slope; Bétemps launched
from Pointe du Pertuiset, Mieussy, and flew 100 m. Bohn followed him and glided
down to the football pitch in the valley 1000 metres below.[8]
"Parapente" (pente being French for "slope") was born.
From the 1980s, equipment has continued to
improve, and the number of paragliding pilots and established sites has
continued to increase. The first (unofficial) Paragliding World Championship
was held in Verbier, Switzerland, in 1987,[9] though the first officially
sanctioned FAI World Paragliding Championship was held in Kössen, Austria, in
1989.[10]
南京专业滑翔伞便宜
上海翼舞航空科技有限公司总部位于山阳镇亭卫公路1500号一层A208室，是一家上海翼舞航空科技有限公司旗下的专业公司,一直以来我们都向广大的航空爱好者和专业人士提供质量、低价的纯进口轻型航空器材,我们提供的设备有滑翔伞、动力伞、三角翼、动力三角翼、水上动力三角翼和固定翼轻型飞机，我们的产品应用于个人户外运动探险、航空杂技表演、警察空中巡逻、电力网线架设和巡视、电视航空拍摄、灾害检查收救、大型赛事活动直播、景点空中观赏、空中农药喷洒等一系列领域的公司。翼舞作为上海翼舞航空科技有限公司旗下的专业公司,一直以来我们都向广大的航空爱好者和专业人士提供质量、低价的纯进口轻型航空器材,我们提供的设备有滑翔伞、动力伞、三角翼、动力三角翼、水上动力三角翼和固定翼轻型飞机，我们的产品应用于个人户外运动探险、航空杂技表演、警察空中巡逻、电力网线架设和巡视、电视航空拍摄、灾害检查收救、大型赛事活动直播、景点空中观赏、空中农药喷洒等一系列领域的企业之一，为客户提供良好的动力伞，滑翔伞，飞行，热汽球。翼舞致力于把技术上的创新展现成对用户产品上的贴心，为用户带来良好体验。翼舞始终关注运动、休闲行业。满足市场需求，提高产品价值，是我们前行的力量。