欧美性猛交XXXX免费看蜜桃,成人网18免费韩国,亚洲国产成人精品区综合,欧美日韩一区二区三区高清不卡,亚洲综合一区二区精品久久

打開(kāi)APP
userphoto
未登錄

開(kāi)通VIP,暢享免費電子書(shū)等14項超值服

開(kāi)通VIP
NASA - A First Look at Flight in 2025
A First Look at Flight in 2025
01.13.11
 
Artist's concept of an aircraft that could enter service in 2025 from the team led by Northrop Grumman. Credit: NASA/Northrop Grumman
›  Link to larger photo

Artist's concept of an aircraft that could enter service in 2025 from the team led by The Boeing Company. Image credit: NASA/The Boeing Company
›  Link to larger photo

Artist's concept of an aircraft that could enter service in 2025 from the team led by Lockheed Martin. Image credit: NASA/Lockheed Martin
›  Link to larger photo

In late 2010, NASA awarded contracts to three teams — Lockheed Martin, Northrop Grumman, The Boeing Company — to study advanced concept designs for aircraft that could take to the skies in the year 2025.

At the time of the award, the team gave NASA a sneak peek of the particular design they plan to pursue.

Each design looks very different, but all final designs have to meet NASA's goals for less noise, cleaner exhaust and lower fuel consumption. Each aircraft has to be able to do all of those things at the same time, which requires a complex dance of tradeoffs between all of the new advanced technologies that will be on these vehicles.

The proposed aircraft will also have to operate safely in a more modernized air traffic management system.

And each design has to fly up to 85 percent of the speed of sound; cover a range of approximately 7,000 miles; and carry between 50,000 and 100,000 pounds of payload, either passengers or cargo.

For the rest of this year, each team will be exploring, testing, simulating, keeping and discarding innovations and technologies to make their design a winner.

How different will the final designs look from these initial glimpses?

Check back and see.

›  Read About Aircraft Designs for 2035
本站僅提供存儲服務(wù),所有內容均由用戶(hù)發(fā)布,如發(fā)現有害或侵權內容,請點(diǎn)擊舉報。
打開(kāi)APP,閱讀全文并永久保存 查看更多類(lèi)似文章
猜你喜歡
類(lèi)似文章
中國民航局宣布一件大事!飛機上將可以玩手機了!
雙語(yǔ):NASA揭開(kāi)未來(lái)飛機設計的神秘面紗
NASA's X-48C hybrid wing-body plane completes flight test
辦公室文秘必備Email(1)
NASA RSRA (Rotor Systems Research Aircraft) | Strange Vehicles | Diseno
航空英語(yǔ)
更多類(lèi)似文章 >>
生活服務(wù)
分享 收藏 導長(cháng)圖 關(guān)注 下載文章
綁定賬號成功
后續可登錄賬號暢享VIP特權!
如果VIP功能使用有故障,
可點(diǎn)擊這里聯(lián)系客服!

聯(lián)系客服

欧美性猛交XXXX免费看蜜桃,成人网18免费韩国,亚洲国产成人精品区综合,欧美日韩一区二区三区高清不卡,亚洲综合一区二区精品久久