File:X-43A Illustrated Image.jpg

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DescriptionX-43A Illustrated Image.jpg	中文（臺灣）：X-43A脫離飛馬座火箭預想圖必須在超音速狀態下才能點燃超音速燃燒脈衝噴射引擎(Scramjet)的X-43A極超音速實驗機，在空中與飛馬座火箭飛離的電腦預想圖。 English: This image (captured from animation video) illustrates the separation of the X-43A research vehicle from the Pegasus booster.
Date	13 September 2000
Source	http://www.dfrc.nasa.gov/Gallery/Photo/X-43A/HTML/ED04-0082-3.html
Author	NASA/Dryden Flight Research Center

This image or video was catalogued by Armstrong Flight Research Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ED04-0082-3.

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This image or video was catalogued by Langley Research Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: EL-2000-00532.

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العربية ∙ беларуская (тарашкевіца) ∙ български ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ galego ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−

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	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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Date/Time	Dimensions	User	Comment
2017-01-14 16:02	2474×2400× (1944154 bytes)	Taiwania Justo	Larger file
2004-09-10 17:23	800×600× (120912 bytes)	SElephant	X-43A脫離飛馬座火箭預想圖

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	16:02, 14 January 2017		2,474 × 2,400 (1.85 MB)	Taiwania Justo (talk \| contribs)	Transferred from zh.wikipedia

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NASA Dryden Flight Research Center Photo Collection

http://www.dfrc.nasa.gov/Gallery/Photo/index.html NASA Photo: ED04-0082-3 Date: September 13, 2000

     This image (captured from animation video) illustrates the separation of the X-43A research vehicle from the Pegasus booster. (LaRC Photo # EL-2000-00532)

     This image (captured from animation video) illustrates the separation of the X-43A research vehicle from the Pegasus booster. (LaRC Photo # EL-2000-00532)

The experimental X-43A hypersonic research aircraft, part aircraft and part spacecraft, will be dropped from the wing of a modified B-52 aircraft, boosted to nearly 100,000 feet altitude by a booster rocket and released over the Pacific Ocean to briefly fly under its own power at seven times the speed of sound, almost 5,000 mph.<p>The flight is part of the Hyper-X program, a research effort designed to demonstrate alternate propulsion technologies for access to space and high-speed flight within the atmosphere. It will provide unique "first time" free flight data on hypersonic air-breathing engine technologies that have large potential pay-offs.<p>The $250 million program began with conceptual design and scramjet engine wind tunnel work in 1996. In a scramjet (supersonic-combustion ramjet), the flow of air through the engine remains supersonic, or greater than the speed of sound, for optimum engine efficiency and vehicle speed. A scramjet operates by supersonic combustion of fuel in a stream of air com,pressed by the high forward speed of the aircraft, as opposed to a normal jet engine, in which the compressor blades compress the air. Scramjets start operation at about Mach 6, or six times the speed of sound. There are few or no moving parts in a scramjet engine, but achieving proper ignition and combustion in a matter of milliseconds proved to be an engineering challenge of the highest order. <p>Researchers believe these technologies may someday offer more airplane-like operations and other benefits compared to traditional rocket systems. Rockets provide limited throttle control and must carry heavy tanks filled with liquid oxygen, necessary for combustion of fuel. An air-breathing engine, like that on the X-43A, scoops oxygen from the air as it flies. The weight savings could be used to increase payload capacity, increase range or reduce vehicle size for the same payload.<p>NASA's Langley Research Center, Hampton, Va., and Dryden Flight Research Center, Edwards, Calif., jointly conduct the Hyper-X program. ATK-GASL (formerly Microcraft, Inc.) of Tullahoma, Tenn., built both the X-43A aircraft and the scramjet engine, and Boeing Phantom Works, Huntington Beach, Calif., designed the thermal protection and onboard systems. The booster is a modified first stage of a Pegasus rocket built by Orbital Sciences Corp, Chandler, Ariz.

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