File:Joseph Albert Walker.jpg

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描述Joseph Albert Walker.jpg	English: Joseph Albert "Joe" Walker is seen here after a flight in front of the X-15 #2 (56-6671) rocket-powered research aircraft. Joseph A. Walker was a Chief Research Pilot at the NASA Dryden Flight Research Center during the mid-1960s.
日期	摄于1961年3月30日
来源	http://www.dfrc.nasa.gov/Gallery/Photo/X-15/HTML/E-6682.html
作者	NASA
其他版本	File:Joseph A. Walker.png

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	本文件完全由NASA创作，在美国属于公有领域。根据NASA的版权方针，NASA的材料除非另有声明否则不受版权保护。（参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。）
	警告: 使用NASA的标志、徽章、徽标等受到美国法律14 CFR 1221的限制。 NASA网站大量存储来自苏联或俄罗斯航天机构的图片，以及其他非美国的航天机构图片。这些文件不一定属于公有领域。根据哈勃空间望远镜的数据制作的材料，如果不是明确声明由STScI提供，则可能受到版权保护。[1]参见{{PD-Hubble}}和{{Cc-Hubble}}。 SOHO（ESA和NASA）联合项目表示，由旗下的探测器创作的材料受版权保护，且对于商业性非教育目使用材料需要授权。[2] 每日一天文图（APOD）网站上展示的图片可能受到版权保护。[3] 国家太空科学数据中心（NSSDC）网站据信存储了受版权保护内容。其图库常见问答表明除非另有声明，图库的所有图片都属于公有领域。

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	日期/时间	缩⁠略⁠图	大小	用户	备注
当前	2015年9月18日 (五) 20:01		640 × 640（285 KB）	Mirecki（留言 \| 贡献）	User created page with UploadWizard

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Commons:WikiProject Aviation/recent uploads/2015 September 18
File:WalkerE-6682.jpg（文件重定向）
Category:Joseph Albert Walker

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ar.wikipedia.org上的用途
- جوزف ووكر
bg.wikipedia.org上的用途
- Джо Уокър
ca.wikipedia.org上的用途
- X-15 Flight 91
- X-15 Flight 90
cs.wikipedia.org上的用途
- Joseph Walker
da.wikipedia.org上的用途
- Bruger:Palnatoke/Autolister/Personer/Astronauter
de.wikipedia.org上的用途
- Joseph Albert Walker
en.wikipedia.org上的用途
- X-15 Flight 90
- X-15 Flight 91
- List of spaceflight records
- List of X-15 flights
- Portal:Spaceflight/Selected article/Week 28 2007
- List of Washington & Jefferson College alumni
es.wikipedia.org上的用途
- Joseph Albert Walker
et.wikipedia.org上的用途
- Joseph Walker
fa.wikipedia.org上的用途
- جوزف ای واکر
fr.wikipedia.org上的用途
- Joseph Albert Walker
it.wikipedia.org上的用途
- Lista di astronauti e cosmonauti
- Joseph Albert Walker
- X-15 Flight 90
ja.wikipedia.org上的用途
- MISS (アメリカ合衆国の宇宙計画)
lv.wikipedia.org上的用途
- Dalībnieks:Edgars2007/Commons delete
mg.wikipedia.org上的用途
- Joseph Albert Walker
nl.wikipedia.org上的用途
- Joseph Albert Walker
- Gebruiker:RonnieV/Lijst van personen geboren in 1921
- Gebruiker:RonnieV/Lijst van personen geboren op 20 februari
- Gebruiker:RonnieV/Lijst van personen overleden op 8 juni
- Gebruiker:RonnieV/Lijst van personen overleden in 1966
- Gebruiker:RonnieBot/afbeeldingen 70 1000
no.wikipedia.org上的用途
- Bruker:Paaln/astronauts
- Bruker:Paaln/Tesflygere
pl.wikipedia.org上的用途
- Joseph A. Walker
pt.wikipedia.org上的用途
- Joseph Walker
- Lista de pessoas que viajaram no espaço
- Lista de voos suborbitais tripulados
ro.wikipedia.org上的用途
- Listă de oameni din statul Pennsylvania
sk.wikipedia.org上的用途
- Joseph Albert Walker
tr.wikipedia.org上的用途
- Joseph A. Walker
www.wikidata.org上的用途
- Q708395
- Q8041407
- Q8041408
zh.wikipedia.org上的用途
- 人类最早进入太空计划
- 约瑟夫·艾伯特·沃克

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JPEG文件备注

Joe Walker is seen here after a flight in front of the X-15 #2 (56-6671) rocket-powered research aircraft. Joseph A. Walker was a Chief Research Pilot at the NASA Dryden Flight Research Center during the mid-1960s. He joined NACA in March 1945, and served as project pilot at the Edwards flight research facility on such pioneering research projects as the D-558-1, D-558-2, X-1, X-3, X-4, X-5, and the X-15. He also flew programs involving the F-100, F-101, F-102, F-104, and the B-47. Walker made the first NASA X-15 flight on March 25, 1960. He flew the research aircraft 24 times and achieved its highest altitude. He attained a speed of 4,104 mph (Mach 5.92) during a flight on June 27, 1962, and reached an altitude of 354,200 feet (67.08 miles) on August 22, 1963 (his last X-15 flight). This was one of three flights by Walker that achieved altitudes over 50 miles. Walker was killed on June 8, 1966, when his F-104 collided with the XB-70. The X-15 was a rocket-powered aircraft 50 ft long with a wingspan of 22 ft. It was a missile-shaped vehicle with an unusual wedge-shaped vertical tail, thin stubby wings, and unique fairings that extended along the side of the fuselage. The X-15 weighed about 14,000 lb empty and approximately 34,000 lb at launch. The XLR-99 rocket engine, manufactured by Thiokol Chemical Corp., was pilot controlled and was capable of developing 57,000 lb of rated thrust (actual thrust reportedly climbed to 60,000 lb). North American Aviation built three X-15 aircraft for the program.The X-15 research aircraft was developed to provide in-flight information and data on aerodynamics, structures, flight controls, and the physiological aspects of high-speed, high-altitude flight. A follow-on program used the aircraft as a testbed to carry various scientific experiments beyond the Earth's atmosphere on a repeated basis. For flight in the dense air of the usable atmosphere, the X-15 used conventional aerodynamic controls such as rudder surfaces on the vertical stabilizers to control yaw and canted horizontal surfaces on the tail to control pitch when moving in synchronization or roll when moved differentially. For flight in the thin air outside of the appreciable Earth's atmosphere, the X-15 used a reaction control system. Hydrogen peroxide thrust rockets located on the nose of the aircraft provided pitch and yaw control. Those on the wings provided roll control.Because of the large fuel consumption, the X-15 was air launched from a B-52 aircraft at 45,000 ft and a speed of about 500 mph. Depending on the mission, the rocket engine provided thrust for the first 80 to 120 sec of flight. The remainder of the normal 10 to 11 min. flight was powerless and ended with a 200-mph glide landing.Generally, one of two types of X-15 flight profiles was used: a high-altitude flight plan that called for the pilot to maintain a steep rate of climb, or a speed profile that called for the pilot to push over and maintain a level altitude. The X-15 was flown over a period of nearly 10 years--June 1959 to Oct. 1968--and set the world's unofficial speed and altitude records of 4,520 mph (Mach 6.7) and 354,200 ft (over 67 mi) in a program to investigate all aspects of piloted hypersonic flight. Information gained from the highly successful X-15 program contributed to the development of the Mercury, Gemini, and Apollo manned spaceflight programs, and also the Space Shuttle program.The X-15s made a total of 199 flights and were manufactured by North American Aviation. X-15-1, serial number 56-6670, is now located at the National Air and Space Museum, Washington DC.North American X-15A-2, serial number 56-6671, is at the United States Air Force Museum, Wright-Patterson AFB, Ohio. The X-15-3, serial number 56-6672, crashed on 15 November 1967, resulting in the death of Maj. Michael J. Adams.

File:Joseph Albert Walker.jpg

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