国产男女无遮挡_日本在线播放一区_国产精品黄页免费高清在线观看_国产精品爽爽爽

  • 熱門標簽

當前位置: 主頁 > 航空資料 > 國外資料 >

時間:2010-05-10 17:38來源:藍天飛行翻譯 作者:admin
曝光臺 注意防騙 網曝天貓店富美金盛家居專營店坑蒙拐騙欺詐消費者

axis aligned with the runway centerline throughout
the approach and landing. (The proper way to correct
for a crosswind will be explained under the section,
“Crosswind Approach and Landing.” For now, only
an approach and landing where the wind is straight
down the landing area will be discussed.)
Focus directly down the centerline and steer right or
left to remain on that centerline.
While aligning the powered parachute down the runway
centerline, or straight down your intended landing
area, slight adjustments in power may be necessary to
maintain the descent.
Control the descent angle throughout the approach so
the powered parachute will land in the center of the
first third of the runway. The descent angle is affected
by the throttle. More throttle means lower descent
rate, less throttle results in a higher descent rate. The
wind also plays a prominent part in the gliding distance
over the ground. [Figure 11-2] Naturally, you
do not have control over the wind but may correct for
its effect on the powered parachute’s descent by appropriate
power adjustments: more throttle is required
in a headwind and crosswind, less throttle is required
with a tailwind.
The objective of a good final approach is to descend
at an angle that will permit the powered parachute to
reach the desired touchdown point. Since on a normal
approach the power setting is not fixed as in a
power-off approach, adjust the power as necessary,
to control the descent angle, or to attain the desired
altitudes along the approach path. This is one reason
for performing approaches with partial power; if the
approach is too high, merely reduce the power. When
the approach is too low, add power.
Figure 11-1. Base leg and final approach.
11-3
Estimating Height and Movement
During the approach, roundout, and touchdown, vision
is of prime importance. To provide a wide scope
of vision and to foster good judgment of height
and movement, your head should assume a natural,
straight-ahead position. Your visual focus should not
be fixed on any one side or any one spot ahead of the
powered parachute, but should be changing slowly
from a point just over the powered parachute’s nosewheel
to the desired touchdown zone and back again,
while maintaining a deliberate awareness of distance
from either side of the runway within your peripheral
field of vision. Accurate estimation of distance
is, besides being a matter of practice, dependent upon
how clearly objects are seen; it requires that vision be
focused properly for the important objects to stand out
as clearly as possible.
Speed blurs objects at close range. For example, consider
the view from an automobile moving at high
speed. Nearby objects seem to merge together in a
blur, while objects farther away stand out clearly. The
driver subconsciously focuses the eyes sufficiently far
ahead of the automobile to see objects distinctly. In
the same way, the distance at which the powered parachute
pilot’s vision is focused is normally adjusted
automatically.
If you attempt to focus on a reference that is too close
or look directly down, the reference will become
blurred, and the reaction will be either too abrupt or
too late. In this case, your tendency will be to overcontrol,
round out high, and make drop-in landings.
When you focus too far ahead, accuracy in judging
the closeness of the ground is lost and the consequent
reaction will be too slow since there will not appear
to be a necessity for action. This will result in flying
into the ground without flaring.
Roundout
The powered roundout is a slow, smooth transition
from a normal approach descent rate to a landing descent
rate, gradually rounding out the flightpath to
one that is parallel with, and within a very few inches
above the runway. When the powered parachute is in
a normal descent, within what appears to be 10 to 20
feet above the ground, the powered roundout should
be started. Once started, it should be a continuous process
until the powered parachute touches down on the
ground.
As the powered parachute reaches a height above
the ground where a timely change can be made into
the proper landing descent, power should be gradually
applied to slowly decrease the rate of descent.
[Figure 11-3]
The rate at which the roundout is executed depends
on the powered parachute’s height above the ground
and the rate of descent. A roundout started excessively
high must be executed more slowly than one from a
lower height to allow the powered parachute to descend
 
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址:Powered Parachute Flying Handbook動力傘飛行手冊(81)
国产男女无遮挡_日本在线播放一区_国产精品黄页免费高清在线观看_国产精品爽爽爽
日本免费久久高清视频| 加勒比在线一区二区三区观看| 青草网在线观看| 久久久久网址| 欧美又大又粗又长| 国产精品免费看一区二区三区 | 久久久精品动漫| 国产精品国产三级国产专区53| 青青草久久网络| 国产v综合ⅴ日韩v欧美大片| 亚洲免费视频播放| 成人精品一二区| 国产日韩在线播放| 久久久久久久久一区| 国语对白做受xxxxx在线中国| 国产精品久久久久国产a级| 国产噜噜噜噜久久久久久久久 | 国产精品久久久久久久久粉嫩av | 在线观看免费91| 国产脚交av在线一区二区| 日韩精品久久一区二区| 国产精品美女主播在线观看纯欲 | 久久这里有精品视频| 国产精品一色哟哟| 日日摸日日碰夜夜爽无码| 久久精品国产久精国产思思| 国产尤物av一区二区三区| 亚洲一区二区三区乱码| 日韩在线高清视频| 国产精品尤物福利片在线观看| 亚洲日本欧美在线| 91精品国产乱码久久久久久久久| 亚洲欧洲精品一区二区三区波多野1战4| www日韩视频| 五月天综合婷婷| 久久人人爽人人爽人人av| 成人做爽爽免费视频| 国产精品久久久久久久小唯西川| 成人av一级片| 欧美不卡在线一区二区三区| 亚洲永久免费观看| 国产精品色视频| 国产精品美女免费视频| 午夜精品一区二区三区四区| 久久精品午夜福利| 欧美激情视频一区二区三区| 久久亚洲春色中文字幕| 国产精品久久九九| 99视频日韩| 黄黄视频在线观看| 日本久久高清视频| 亚洲最大福利网| 色妞欧美日韩在线| 97久久精品在线| 欧美高清性xxxxhd| 日本精品福利视频| 亚洲天堂av免费在线观看| 国产精品手机在线| 国产成人黄色片| 99久re热视频这里只有精品6| 欧美久久久久久久久久久久久久| 午夜精品视频网站| 欧美日韩高清在线观看| 国产精品沙发午睡系列| 久久久久久久久久婷婷| 91久久精品在线| 国产无套粉嫩白浆内谢的出处 | 欧美日本高清一区| 国产精品视频一区二区三区四区五区| 91成人免费视频| 国产精品一区二区三区观看| 免费观看美女裸体网站| 久久激情视频久久| 日韩免费高清在线| 一区二区三区欧美成人| 日韩在线视频网| 国产精品亚洲综合天堂夜夜| 热久久精品国产| 亚洲欧美日韩综合一区| 国产精品露出视频| 91精品免费看| 精品一区国产| 人体内射精一区二区三区| 色综合久久88| 国产成人啪精品视频免费网| www.中文字幕在线| 国模吧一区二区| 日本在线高清视频一区| 中文字幕精品—区二区日日骚| 国产成人三级视频| 久久久精品在线视频| 国产另类第一区| 虎白女粉嫩尤物福利视频| 日韩av电影在线网| 中文字幕中文字幕一区三区 | 日本在线观看a| 亚洲综合五月天| 国产精品麻豆va在线播放| 久久久久久久成人| 91久久偷偷做嫩草影院| 国产在线精品一区二区三区》| 欧美一二三不卡| 日韩中文字幕三区| 一本一本a久久| 精品伦理一区二区三区| 久久精品青青大伊人av| 国产v综合v亚洲欧美久久| 不卡一区二区三区四区五区| 国产又黄又大又粗视频| 国内精品久久久久| 欧美亚洲激情在线| 日韩精品久久久| 日韩手机在线观看视频| 色大师av一区二区三区| 国产一区亚洲二区三区| 国产乱码一区| 久久综合亚洲精品| 色噜噜久久综合伊人一本| 国产精品久久久久久久久久久久| 欧美激情aaaa| 午夜精品一区二区三区四区| 青青草国产精品一区二区| 欧美日韩国产综合视频在线| 国内揄拍国内精品| 国产精品一区av| 国产高潮呻吟久久久| 久久精品91久久香蕉加勒比| 国产精品国产精品| 亚洲巨乳在线观看| 欧美一区视久久| 国产日韩亚洲欧美在线| 7777精品伊久久久大香线蕉语言| 色婷婷成人综合| 在线观看污视频| 欧美一区亚洲二区| 99免费在线视频观看| 久久久久久久国产| 欧美乱妇高清无乱码| 亚洲专区在线视频| 欧美少妇在线观看| 成人国产精品日本在线| 久99久视频| 精品国产免费人成电影在线观...| 亚洲高清123| 免费国产在线精品一区二区三区| av电影一区二区三区| www国产91| 自拍另类欧美| 男女视频一区二区三区| 99热在线播放| 国产精品久久久久久影视| 五月天在线免费视频| 狠狠色综合一区二区| 国产精品96久久久久久| 国产精品三级久久久久久电影| 在线观看污视频| 国内精品视频一区二区三区| 69av视频在线播放| 国产精品九九九| 日韩久久久久久久久久久久久| 国产乱人伦真实精品视频| 日韩少妇与小伙激情| 亚洲一区二区中文字幕| 国产一区视频观看| 精品国产拍在线观看| 亚洲v国产v| 国产色一区二区三区| 久草精品电影| 美国av一区二区三区| 精品视频在线观看| 69国产精品成人在线播放| 国产精品欧美激情在线观看| 亚洲在线免费视频| 欧美精品在线一区| 97国产精品视频| 国产精品女人网站| 亚洲免费视频播放| 欧美 日韩 国产精品| 精品国产乱码久久久久久88av| 亚洲二区三区四区| 国产另类自拍| 国产精品福利在线观看网址| 欧美日韩精品久久| 久久久亚洲精选| 欧美精品xxx| 国产在线精品一区二区三区| 国产精品视频xxxx| 青青青在线播放| 国产成人在线一区| 亚洲国产日韩美| 91免费精品视频| 伊人久久大香线蕉精品| 国产日韩中文在线| 欧美精品手机在线| 精品一区二区三区视频日产 | 日韩在线视频观看| 日本一二三区视频在线| 7777免费精品视频| 五月天婷亚洲天综合网鲁鲁鲁| 99久久国产免费免费|