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F-105 Thunderchief in Vietnam War: "The Twenty Five Hour Day" ~ 1967 Fairchild Republic
🕑 Added 2019-04-29 17:31:29 +0000 UTCmore at http://quickfound.net/
Conduct of US Air Force bombing missions with the Republic F-105 Thunderchief attack aircraft in Vietnam.
USAF film SFP-1758
Originally a public domain film from the US Air Force, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.
The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).
http://en.wikipedia.org/wiki/Republic_F-105_Thunderchief
Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/
The Republic F-105 Thunderchief was a supersonic fighter-bomber used by the United States Air Force. The Mach 2 capable F-105 conducted the majority of strike bombing missions during the early years of the Vietnam War; it was the only U.S. aircraft to have been removed from combat due to high loss rates. Originally designed as a single-seat, nuclear-attack aircraft, a two-seat Wild Weasel version was later developed for the specialized Suppression of Enemy Air Defenses (SEAD) role against surface-to-air missile sites. The F-105 was commonly known as the "Thud" by its crews.
As a follow-on to the Mach 1 capable North American F-100 Super Sabre, the F-105 was also armed with missiles and a cannon; however, its design was tailored to high-speed low-altitude penetration carrying a single nuclear weapon internally. First flown in 1955, the Thunderchief entered service in 1958. The F-105 could deliver a greater bomb load than some American heavy bombers of World War II such as the Boeing B-17 Flying Fortress and Consolidated B-24 Liberator. The F-105 was one of the primary attack aircraft of the Vietnam War; over 20,000 Thunderchief sorties were flown, with 382 aircraft lost including 62 operational (non-combat) losses (out of the 833 produced). Although less agile than smaller MiG fighters, USAF F-105s were credited with 27.5 kills.
During the war, the single-seat F-105D was the primary aircraft delivering the heavy bomb loads against the various military targets. Meanwhile, the two-seat F-105F and F-105G Wild Weasel variants became the first dedicated Suppression of Enemy Air Defenses (SEAD) platforms...
The Thunderchief was the largest single-seat, single-engine combat aircraft in history, weighing approximately 50,000 pounds (23,000 kg). It could exceed the speed of sound at sea level and reach Mach 2 at high altitude; The F-105 could carry up to 14,000 lb (6,400 kg) of bombs and missiles. The Thunderchief was later replaced as a strike aircraft over North Vietnam by both the McDonnell Douglas F-4 Phantom II and the swing-wing General Dynamics F-111 Aardvark. However, the "Wild Weasel" variants of the F-105 remained in service until 1984 after being replaced by the specialized F-4G "Wild Weasel V"...
Republic Aviation started the Thunderchief as an internal project to replace the RF-84F Thunderflash, which first used the characteristic wing-root air intakes to place cameras in a pointed nose. The design team led by Alexander Kartveli examined some 108 configurations before settling on a large, single-engine AP-63FBX (Advanced Project 63 Fighter Bomber, Experimental), specifically AP-63-31. The new aircraft was intended primarily for supersonic, low altitude penetration to deliver a single, internally carried nuclear bomb...
The YF-105A prototype first flew on 22 October 1955, with the second YF-105A following on 28 January 1956. In spite of being powered by a less potent J57-P-25 engine with 15,000 pounds-force (67 kN) of afterburning thrust (the J75 was expected to generate 24,500 lbf (109 kN) with afterburner), the first prototype attained the speed of Mach 1.2 on its maiden flight. Both prototypes featured conventional wing root air intakes and slab-sided fuselages typical of the early jets; Republic viewed the YB-105As as not being representative of the true capability of the aircraft due to numerous changes prior to production. Insufficient power and aerodynamic problems with transonic drag, as well as Convair's experience with their F-102, had led to a redesign of the fuselage in order to conform to the Area rule, giving it a characteristic "wasp waist". In combination with the distinctive forward-swept variable-geometry air intakes which regulated airflow to the engine at supersonic speeds and the J75 engine, this redesign enabled the F-105B to attain Mach 2.15...
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