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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]

无锡质量滑翔伞好货源好价格

大约在那个时候，大卫·巴里什（David Barish）正在开发用于恢复NASA太空舱的“帆翼”（单面翼）-“高耸的斜坡是一种测试……帆翼的方法。” 在对Hunter进行测试之后1965年9月，他在纽约的山上继续推广滑雪胜地的夏季活动[6] [7]。

作者Walter Neumark撰写了《降落伞操作程序》，并于1973年与一群对拖曳PC和ram-air降落伞充满热情的爱好者脱离了英国降落伞协会，成立了英国降落伞俱乐部协会（此协会后来成为英国的滑翔伞和滑翔伞协会）。 1997年，纽马克（Neumark）被英国皇家航空俱乐部（Royal Aero Club）授予奖牌。作家Patrick Gilligan（加拿大）和Bertrand Dubuis（瑞士）于1985年撰写了首本飞行手册《滑翔伞手册》，创造了滑翔伞一词。

1978年6月，来自法国上萨瓦省Mieussy的三个朋友Jean-ClaudeBétemps，AndréBohn和GérardBosson将这些发展合并在一起。在跳伞者和发行人丹·波因特（Dan Poynter）在《降落伞手册》杂志上发表的一篇有关坡度飞涨的文章的灵感启发之后，[7]他们计算出，在合适的坡度上，可以通过顺着坡道向“方形”的冲压空气降落伞充气； Bétemps从Mieussy的Pointe du Pertuiset发射升空100 m。博恩跟随他，滑到1000米以下山谷的足球场。

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Harness

A pilot with harness (light blue),

performing a reverse launch

The pilot is loosely and comfortably

buckled into a harness, which offers support in both the standing and sitting

positions. Most harnesses have foam or airbag protectors underneath the seat

and behind the back to reduce the impact on failed launches or landings. Modern

harnesses are designed to be as comfortable as a lounge chair in the sitting or

reclining position. Many harnesses even have an adjustable "lumbar

support". A reserve parachute is also typically connected to a paragliding

harness.

Harnesses also vary according to the need

of the pilot, and thereby come in a range of designs, mostly: Training harness

for beginners, Pax harness for tandem passengers that often also doubles as a

training harness, XC Harness for long distance cross country flights, All round

harness for basic to intermediate pilots, Pod harness, which is for

intermediate to pro pilots that focus on XC. Acro harnesses are special designs

for acrobatic pilots, Kids tandem harnesses are also now available with special

child-proof locks.

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.

Launching

Paraglider towed launch, Mirosławice,

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:

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无锡质量滑翔伞好货源好价格

This can be very dangerous, because now the

forces on the line have to be controlled by the moving object itself, which is

almost impossible to do, unless stretchy rope and a pressure/tension meter

(dynamometer) is used. Static line towing with stretchy rope and a load cell as

a tension meter has been used in Poland, Ukraine, Russia, and other Eastern

European countries for over twenty years (under the name Malinka) with about

the same safety record as other forms of towing.[21] One more form of towing is

hand towing. This is where 1−3 people pull a paraglider using a tow rope of up

to 500 feet. The stronger the wind, the fewer people are needed for a

successful hand tow.[22] Tows up to 300 feet have been accomplished, allowing

the pilot to get into a lift band of a nearby ridge or row of buildings and

ridge-soar in the lift the same way as with a regular foot launch.[23]

无锡质量滑翔伞好货源好价格

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