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松江區質量滑翔傘按需定制

來源: 發布時間:2020-07-13


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.


松江區質量滑翔傘按需定制


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.



奉賢區官方滑翔傘哪家快


The next step in the launch is to bring the

wing into the lift zone. There are two techniques for accomplishing this

depending on wind conditions. In light wind this is usually done after turning

to the front, steering with the feet towards the low wing tip, and applying

light brakes in a natural sense to keep the wing horizontal. In stronger wind

conditions it is often found to be easier to remain facing downwind while

moving slowly and steadily backwards into the wind.


Knees bent to load the wing, foot

adjustments to remain central and minimum use of Cs or Brakes to keep the wing

horizontal. Pirouette when the feet are close to lifting. This option has two

distinct advantages. a) The pilot can see the wing centre marker (an aid to

centring the feet) and, if necessary, b) the pilot can move briskly towards the

wing to assist with an emergency deflation.


With either method it is essential to check

"traffic" across the launch face before committing to flight.



顯示滑翔傘各部分的橫截面:

1)上表面

2)下表面

3)肋骨

4)對角肋

5)上線級聯

6)中線串級

7)下線級聯

8)立管

滑翔傘的機翼或機蓋通常在工程上稱為“沖壓空氣翼型”。這樣的翼包括兩層織物,它們以形成一排網孔的方式連接到內部支撐材料上。通過使大多數艙室*在前緣處敞開,進入的空氣使機翼保持充氣狀態,從而保持其形狀。充氣時,機翼的橫截面具有典型的淚滴翼型形狀。現代滑翔傘的機翼是由高性能的無孔材料制成的,例如尼龍纖維。

在某些現代滑翔傘(從1990年開始中,尤其是性能更高的機翼中,前緣的某些艙室被封閉以形成更干凈的空氣動力學輪廓。內部肋骨上的孔允許空氣從開孔到這些閉孔的自由流動,以使它們膨脹,并向也閉合的翼尖膨脹。


飛行員通過懸吊線網絡支撐在機翼下方。這些從兩根短的(40厘米)長的堅固織帶制成的立管開始。每組由一個登山扣固定在吊帶上,飛行員的每一側上各有一個,每個組的立管通常*從機翼一側的一行上連接到繩索上。在該組的每個立管的末端,都有一個小三角洲的馬龍,上面掛有數行(2 – 5)條線,形成一個風扇。這些線通常長4 – 5米,末端連接到大約2 m的另外2 – 4條線上,這些線又連接到一組更細的細線上。在某些情況下,對第四級聯重復此操作。



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.


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松江區質量滑翔傘按需定制

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