Land-based practice: Kiting
About that time, David Barish was
developing the "sail wing" (single-surface wing) for recovery of NASA
space capsules – "slope soaring was a way of testing out ... the Sail
Wing."[5] After tests on Hunter Mountain, New York, in September 1965, he
went on to promote slope soaring as a summer activity for ski resorts.[6][7]
Author Walter Neumark wrote Operating
Procedures for Ascending Parachutes, and in 1973 he and a group of enthusiasts
with a passion for tow-launching PCs and ram-air parachutes broke away from the
British Parachute Association to form the British Association of Parascending Clubs
(which later became the British Hang Gliding and Paragliding Association). In
1997, Neumark was awarded the Gold Medal of the Royal Aero Club of the UK.
Authors Patrick Gilligan (Canada) and Bertrand Dubuis (Switzerland) wrote the
first flight manual, The Paragliding Manual in 1985, coining the word
paragliding.
南通原装滑翔伞哪家快
着陆涉及更多的计划,因为可能有多个飞行员必须同时着陆。因此,已经建立了特定的流量模式。飞行员排在飞机场上方并降落在降落区一侧,该位置取决于风向,飞行员可能会因坐飞机而失去身高(如有必要)。从该位置开始,它们以矩形模式沿着飞行路径的腿到达着陆区:顺风腿进场。这允许在多个飞行员之间进行同步,并减少发生碰撞的风险,因为飞行员可以预测他周围的其他飞行员接下来将要做什么。
技术技巧
在进近下降过程中,在接触地面大约四米之前,可以施加一些瞬时制动,然后使用向前的摆动动量来获得速度,以更有效地展开并以**小的垂直速度接近地面。
在小风中,一些小跑很常见。在中等到中等的逆风中,着陆时可能没有前进速度,甚至在强风中甚至可能相对于地面后退。用风着陆会迫使飞行员向后退,这特别危险,因为它可能会翻滚并被拖拽。当机翼垂直于飞行员上方时,有可能降低风险放气。这涉及到每只手在槌/竖板交界处抓住前缘线(As),并通过深深的膝盖弯曲动作来施加飞行员的全部重量。在几乎每种情况下,机翼的前缘都会向前飞一点,然后“折”。然后,它可能会坍塌并下降到飞行员的上风处。在地面上,它将被飞行员的腿约束。
崇明区自动滑翔伞全国发货
滑翔伞拖曳发射,波兰米罗斯瓦维采
滑翔伞降落在印度Azheekkod海滩
与所有飞机一样,发射和降落都是在风中完成的。机翼通过奔跑或被拉动或存在的风被置于气流中。机翼在飞行员上方向上移动到可以运载乘客的位置。然后将飞行员从地面抬起,经过一段安全时期后,可以坐在他的安全带中。与跳伞运动员不同,滑翔伞与悬挂式滑翔伞一样,在此过程中不会随时“跳”起来。在高地上使用了两种发射技术[20],在平地地区使用了一种辅助发射技术:
向前发射
在低风中,机翼通过向前发射而膨胀,飞行员在前进时将机翼向后移动,以便向前运动产生的气压使机翼膨胀。
这通常更容易,因为飞行员只需要向前跑,但是飞行员直到机翼上方都看不到他的机翼为止,在那里他必须在很短的时间内检查一下机翼,以确保发射前有正确的充气和不纠缠的线。
Radio
Radio communications are used in training,
to communicate with other pilots, and to report where and when they intend to
land. These radios normally operate on a range of frequencies in different
countries—some authorised,[18][19] some illegal but tolerated locally. Some
local authorities (e.g., flight clubs) offer periodic automated weather updates
on these frequencies. In rare cases, pilots use radios to talk to airport
control towers or air traffic controllers. Many pilots carry a cell phone so
they can call for pickup should they land away from their intended point of
destination.
GPS
GPS (global positioning system) is a
necessary accessory when flying competitions, where it has to be demonstrated
that way-points have been correctly passed. The recorded GPS track of a flight
can be used to analyze flying technique or can be shared with other pilots. GPS
is also used to determine drift due to the prevailing wind when flying at
altitude, providing position information to allow restricted airspace to be
avoided and identifying one's location for retrieval teams after landing out in
unfamiliar territory.
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. 宝山区通用滑翔伞价格如何计算
南通原装滑翔伞哪家快
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]
南通原装滑翔伞哪家快
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