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Topic: XF 91 Thunderceptor

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	XF-91 Thunderceptor
		The Republic XF-91 Thunderceptor was an mixed-propulsion interceptor using a jet engine for most flight, and a cluster of four small rocket engines for added thrust during climb and interception.
		The Thunderceptor design was one of two swept-wing modifications based on the original F-84 Thunderjet, the other being the F-84F Thunderstreak which happened later.
		The Thunderceptor, like the other interceptor designs of the era, had extremely short flight times on the order of 25 minutes, making them almost useless for protecting an area as large as the United States.
	www.xasa.com /wiki/en/wikipedia/x/xf/xf_91_thunderceptor.html (697 words)

	XF-91 Thunderceptor
		The Republic F-91 Thunderceptor was an mixed-propulsion interceptor using a jet engine for most flight, and a cluster of four small rocket engines for added thrust during climb and interception.
		The Thunderceptor design was one of two swept-wing modifications based on the orginal F-84 Thunderjet[?], the other being the F-84F Thunderstreak.
		One problem with the Thunderstreak, and with most swept wing designs of the era, was dangerous performance at low speeds and high angle of attack.
	www.fastload.org /xf/XF-91_Thunderceptor.html (690 words)

	XF-91 index: XF-91 Photo Gallery Contact Sheet
		The Republic XF-91 Thunderceptor was a single-place fighter, powered by a General Electric J47-GE-17 turbojet engine.
		The wing had a sweep angle of 40 degrees at the 50-percent-chord line and had inverse taper and variable incidence.
		The Republic XF-91 Thunderceptor appears in a 1951 NACA photograph and two NACA technical reports (Research Memoranda), but not in the flight records of the NACA High-Speed Flight Research Station.
	www.dfrc.nasa.gov /gallery/photo/XF-91/HTML/index.html (234 words)

	Maintrack 1/72 XF-91 Thunderceptor
		Originally proposed armament for the Thunderceptor was four nose-mounted 20mm cannon and other suggested configurations were different rocket-launchers in retractable bellymounts and a later variant proposal with a rocket-nose.
		The Thunderceptor was a remarkable feat of aeroplane design and engineering and provided much valuable information and experience for it´s contemporary F-84 family as well as the later Republic success-story, the F-105 Thunderchief.
		Many see the Thunderceptor as an ugly, oddball beast, the ”flop-eared mule”, when it in reality was a sleek, well behaved racer, too advanced and complicated for regular Air Force service in a time when airplane technology raced ahead into the jet-era.
	modelingmadness.com /reviews/korean/olssonxf91.htm (4661 words)

	Aviation Worldwide: Air Force Legends #210: Republic XF-91 Thunderceptor Rocket Fighter
		Aviation Worldwide: Air Force Legends #210: Republic XF-91 Thunderceptor Rocket Fighter
		Air Force Legends #210: Republic XF-91 Thunderceptor Rocket Fighter
		All prices were correct when this page was last updated, however prices are subject to change without notice, due to circumstances beyond our control.
	www.aviation-worldwide.com /products/8802.html (44 words)

	Republic Aviation
		First flown in 1953 and used for many years, the plane was eventually withdrawn from service in 1971.
		At the same time that Republic was working on the F-84, Kartveli and his team were designing Republic's first swept-wing plane, a high-speed experimental interceptor designated the XF-91 Thunderceptor.
		The Thunderceptor never went into production because it could not carry fuel for flights lasting longer than 25 minutes and did not have the latest type of fire control system but it led to further developments in advanced fighter technology.
	www.centennialofflight.gov /essay/Aerospace/Republic/Aero43.htm (1638 words)

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