Anonymous
Anonymous asked in 汽車與交通航空器 · 1 decade ago

我想知道香港啟德機場的IGS

我想知道香港啟德機場的IGS(instrument guidance/guiding system)是怎樣的?

detail一點點pls~

3 Answers

Rating
  • Mason
    Lv 7
    1 decade ago
    Favorite Answer

    圖片參考:http://www.cpavirtual.org/images/kaitak-1.jpg

    山上的棋盤格The landing approach using runway 13 at Kai Tak was spectacular and world-famous. To land on runway 13, an aircraft first took a descent heading northeast. The aircraft would pass over the crowded harbour, and then the very densely populated areas on Western Kowloon. This leg of the approach was guided by an IGS (Instrument Guidance System, a modified ILS) after 1974. Upon reaching a small hill marked with a checkerboard in red and white, which is being marked as a middle marker in the final approach, the pilot needed to make a 47° visual right turn to line up with the runway and complete the final leg. The aircraft would be just two nautical miles from touchdown, at a height of less than 1000 ft when the turn was made. Typically the plane would enter the final right turn at the height of about 650 ft and exit it at the height of 140 ft to line up with the runway. Landing the 13 approach would become even more challenging when crosswinds from the northeast were strong and gusty during typhoons. From a spectator's point of view, watching fully-loaded Boeing 747s banking at low altitudes and taking big crab angles during their final approaches was quite the thrill. Despite the difficulty, it was nonetheless used most of the time due to the prevailing wind direction in Hong Kong.Due to the turn in final approach, all landings in runway 13 could not use ILS and had to follow VFR. This made the runway unusable in low visibility conditions.IGS13進場,由第一張圖看,進場訊號有點像ILS,朝東飛(航向088)但是跟著訊號訊號飛過去並不是跑道,而是一座山,山上畫了紅白相間的棋盤格圖案,看到棋盤格圖案之後,改目視進場,往右轉47度,對正跑道,對正跑道的距離小於2NM,高度也低,是難度極高、世界有名的進場方式。第二圖為山上的棋盤格圖案。以下是一些連結,有影片可參考。http://www.cpavirtual.org/KaiTak.htmhttp://video.g...

    • Login to reply the answers
  • 6 years ago

    我老婆都在這家買的: http://slssg.tk 很贊的!!

    • Login to reply the answers
  • 1 decade ago

    啟德機場的13/31跑道

    獨特的降落方式和機場的特殊環境,讓啟德機場的13跑道世界知名。在13跑道著陸對機師來說是與別不同及頗具挑戰性;而對乘客來說,這亦可算是頗為刺激的體驗。由於香港的盛行風為東風,年中使用13跑道降落的機會比31跑道為多。要在13跑道降落,飛機先從長洲附近向西(航向270°)飛行並開始下降,繞過大嶼山西端轉向東北(航向45°),然後在大嶼山沙螺灣以北改向東(航向88°)進場,經過維多利亞港西部海港,進入建築密集的西九龍上空。13跑道的這段向東航程自1974年起設有儀錶導航系統輔助(Instrument Guidance System;和31跑道所設的儀錶著陸系統、Instrument Landing System類似,但不帶領至著陸)。當飛機到達九龍仔格仔山附近,機師便要靠目測右轉47°,對準伸進海港的跑道著陸。格仔山在九龍仔公園附近的小山崗上,塗以紅白兩色,晚間以燈光照明。飛機在這裡轉彎時高度不足1000英呎(300米),離著陸點更只有1.4海里(2.6公里)。倘若海港內吹的是強勁東北風,飛機還要實施側風著陸。當颱風吹襲香港的時候,港內吹的是強度不穩定的陣風,下降便更為困難。而且跑道三面環海,左面很接近滑行道,靠近的一方雖為陸地,但不遠處卻滿佈樓房。

    對機上的乘客、特別是坐在機艙右邊靠近窗邊的乘客而言,飛機降落時就恍如是飛錯了航道一樣。可以感覺到飛機與地面距離越來越近,地面位於深水埗及旺角的擠迫街道、多層樓房及行人已一一清楚可見,但前方卻未見跑道蹤影。後來兩旁的建築物似乎快要撞到機翼,有時更可以清楚看見民居內的電視畫面、或天臺上晾曬衣物的顏色。此時飛機正在九龍城上空轉彎,跑道也正在前方出現。數秒以後,起落架已接觸到陸地,飛機停定後在海港中央的跑道著陸。

    對居住在航道之下的九龍城居民而言,曾經流行過一句誇張的說話,說是只要在大廈高層拿著晾衫竹便可以把飛機掃下來。

    另一方面,飛機從31跑道向九龍城方向起飛則是另一奇觀。當飛機向鯉魚門方向滑行至跑道末掉頭準備起飛時,機師眼前只有前方數以千計的高樓大廈和海拔1300英呎(400米)高的獅子山和筆架山。飛機剛起飛的時候,機師便要將爬升不久的飛機轉向西飛,以免直撞山。31跑道因受到九龍城樓宇的限制,故實際滑行距離比13跑道短,對航機起飛爬升率的要求亦更高。因此,原定由13號跑道起飛、載滿乘客、貨物和燃料、並達到最大起飛重量的航機,如果在起飛前因風向改變而需要改用31號跑道,就需要返回泊位、卸掉部份貨物以維持較高的爬升力。

    更豐富有關於啟德機場的資料可以到維基百科搜尋「啟德機場」

    維基百科網址 http://zh.wikipedia.org

    啟德機場IGS RWY13 進場圖

    http://www.cfso.org/train_dep/VHHH-O/vhhh%20igs13....

    Source(s): 維基百科-啟德機場
    • Login to reply the answers
Still have questions? Get your answers by asking now.