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

幫忙翻譯747-400文章(航空)

波音747是一種350人座以上的長程越洲型客機,全長70.66公尺、翼展64.31公尺的巨無霸,它的4具普惠(Pratt & Whittney)JT-9D型渦輪扇發動機每一具可提供4萬7仟6佰磅的推力(水注射),最大起飛重量達37萬7仟磅(400型)。

747目前是世界上唯一採用雙層載客甲板的飛機,由於這點也使得747成為最多人能辨識的種類。而由於這種設計在再加上龐大的尺寸,747自1969年問世以來一直是世界上最大型的客機。目前,還在生產的只剩下747-400型機。

新型的747-400,由於使用先進的座艙管理系統,因此只須要2名機員即可。脫胎換骨的400型因為重新設計的機翼,不僅更堅固、重量也更輕。所以747-400不須犧牲載客數即可達到與SP型一樣的航程。共推出客運型、半客貨型及全貨型共3種,值得注意的是,全貨型的上層客艙較短,像是200F。

欲辨認747-400全機型(SR除外)很簡單,主翼上的翼端帆是註冊商標。它主要的功能是隔絕產生的下洗流。因為機翼下壓力較高的氣體(也就是升力)會部份從翼端溢出形成下洗流,這會造成升力的損失,而翼端帆的配置正是在阻擋下洗流的溢出。

這次介紹的747-400系統共分為52個系統,包括有發動機系統、起落架系統、

液壓系統、電力系統、燃油系統…等皆有詳細的介紹。

不要翻譯機的翻譯~謝謝

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  • 1 decade ago
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    Boeing 747 is a long range passenger jet that is capible of seating 350 passengers. It's four Pratt & Whittney JT-9D turbo fan jet produces 40,760 pounds of thrust each, with the maximum take off weight of 377,000 pounsa (-400 series) Boeing 747 is the world only double deck's aircraft, so that it becomes the distinguish mark for many people to identify with. With this kind of design with its enormous size, Boeing 747 is the world's largest commerical airliner, up to today, the only left in the production is the -400 series.The new Boeing 747-400 with the most advanced cockpit managing system, so all it needs is crew of two. With the new design of the wings, not only it is stronger, but also less in weight, so the new Boeing 747-400 do not need to take out the passenger counts to achieve the same range as the previous Boeing 747 SP; with three types to choose from: The all passenger, the combi, and the freighter. What is different from the freighter to other two is the upper deck, it just looks like the previous -200 type. When to identify the 747-400 types (Except for SR series) is easy, the winglets on the wings are also its trade-mark. What it does is it will isolate the down-wash , due to the pressure is high under the wings (is commonly known as the lift) will leak out from the wing tip and produces down-wash, it will make less lift and winglets are made to provent this down-wash.   This time we are introducing the 52 system of the 747-400; it incluses power plant; landing gear; hydrlic; electricial; and fuel, etc. It will be introduced with greater details.

    Source(s): ~Self~
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  • 1 decade ago

    Boeing 747 is above one kind of 350 human of place long distance Vietnamese continent passenger plane, the span 70.66 meter, the wingspan 64.31 meters does not have the tyrant greatly, its 4 Pratt and Whitney (Pratt & Whittney) JT-9D turbine wheel fan engine each may provide 47,600 pounds thrust forces (water injection), the maximum total weight amounts to 377,000 pounds (400).

    747 at present are in the world only use double-decked carry passengers the deck airplane, because this also enable 747 to become the type which most people can recognize. But because this kind of design is adding on the huge size again, 747 has been published since 1969 always is in the world the largest-scale passenger plane. At present, but also only is left over in the production 747-400 molding machine.

    New 747-400, because uses the advanced cabin management system management system, therefore only must take 2 flight crews then. Is reborn 400 because of redesign wing, not only firmer, the weight is also lighter. Therefore 747-400 does not have to sacrifice carries passengers the number then to achieve with the SP same range. Altogether promotes the passenger transportation, half passengers and cargo and the entire goods altogether 3 kinds, it is noteworthy that, the entire goods upper formation cabin is short, is likely 200F.

    Wants to identify 747-400 entire type (the SR exception) very simple, on the main plane wing tip sail is the registered trademark. Its main function is a downwash flow which separates 絕 produces. Because under the wing the pressure high gas (also is lifting force) meets the part to form the downwash flow from the wing tip overflow, this can create the lifting force the loss, but the wing tip sail disposition is precisely in the impediment downwash flow overflow.

    This introduction 747-400 system altogether divides into 52 systems, the embody engine system, the landing gear system,

    the hydraulic system, the electrical power system, the fuel oil system…And so on all has the detailed introduction.

    Source(s): 希望對你有幫助(Hoped has the help to you)!
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