Solaris
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#vragu i rat#
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« on: February 18, 2017, 05:18:20 pm » |
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Meet the EXTREMELY Secret US Air-Force Strategic Bomber XB-70A on the taxiway on 21 September 1964, the day of the first flight [ Attachment: You are not allowed to view attachments ] The North American XB-70 Valkyrie (' Valkyrie ') was the prototype version of the B-70 supersonic bomber proposed for the Strategic Air Command of the United States Air Force . Designed in the late 1950s , the Valkyrie was a large aircraft propelled by six turbo-reactors and capable of flying at Mach 3+ speeds at an altitude of 21,000 meters, which would have allowed it to avoid interceptors , the only effective anti- at that time.
The introduction of effective high-altitude surface-to-air missiles, high program development costs, and changes in the technological environment with the introduction of intercontinental ballistic missiles (ICBMs) led to the cancellation of the B-70 program in 1961 .
Although the proposed fleet of B-70 bombers was canceled, two prototypes with the designation XB-70A were manufactured and used to conduct supersonic test flights from 1964 to 1969 . One prototype crashed after a mid-flight collision in 1966 ; The other is on display at the National Museum of the United States Air Force in Ohio .
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« Last Edit: December 02, 2017, 04:13:46 pm by Dreadnought »
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Dreadnought
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« Reply #1 on: April 16, 2018, 11:34:03 am » |
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North American XB-70 Valkyrie, 1966., Carswell AFB Airshow. [ Attachment: You are not allowed to view attachments ] [ Attachment: You are not allowed to view attachments ] [ Attachment: You are not allowed to view attachments ]
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Dreadnought
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« Reply #2 on: April 16, 2018, 11:38:07 am » |
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North American XB-70 Valkyrie, 1966., Carswell AFB Airshow. Poletanje ... ima i dobrih klasičnih automobila. [ Attachment: You are not allowed to view attachments ] [ Attachment: You are not allowed to view attachments ]
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Dreadnought
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« Reply #3 on: April 16, 2018, 11:41:02 am » |
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Nastavak ...
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Dreadnought
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« Reply #4 on: April 16, 2018, 11:45:44 am » |
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Za ove dve nemam podatak gde i kada ...
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kumbor
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« Reply #5 on: April 16, 2018, 01:50:01 pm » |
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Poleteo, ali nikada nije ušao u službu.
Kao daleki odjek XB-70 i B1"A["/b] pojavio se TU-160, mnogo savršeniji avion od oba američka. Dok su se američki B1-B i B-2 zasnivali na prodoru i dejstvu nad ciljem na relativno maloj visini, podzvučnom brzinom, TU-160 prodire nadzvukom, na maloj ili velikoj visini, nevažno. Ruska taktika nije borbeno proverena. Američka jeste, ali u uslovima daleko slabije PVO, uključujući tu i SRJ 1999. U međuvremenu su i američki i ruski avioni dobili mogućnost "stand off" lansiranja dalekometnih projektila van dejstva protivničke PVO, iz VaP susednih država, gde parametri samog aviona nosača imaju daleko manji uticaj.
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Dreadnought
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« Reply #6 on: November 06, 2019, 02:46:50 pm » |
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In June 1966, a photo shoot involving abXB-70A No. 2, an F-4 Phantom, an F-5, a T-38 Talon, and an F-104 Starfighter, went terribly wrong.
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Dreadnought
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« Reply #7 on: November 17, 2020, 07:44:03 am » |
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In an era of fantastic and futuristic aircraft, the North American Aviation XB-70 Valkyrie stood out as one of the most awe-inspiring.
On June 8th, 1966, this extraordinary aircraft led a photo-shoot run with four other jets at the behest of General Electric. The company wanted a photograph set of the planes that carried their engines.
In the group, an F-104 was piloted by Joe Walker, a seasoned pilot. The XB-70 was flown by Al White, the chief test pilot for the program, with Air Force Major Carl Cross as the co-pilot.
A Learjet piloted by Clay Lacy would carry photographers to capture the formation, which would be featured in a company brochure. However, tragedy suddenly struck. The Valkyrie and the F-104 were involved in a shocking accident documented and immortalized in these photographs. They're now part of American aviation history's long catalog of mysteries.
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Dreadnought
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« Reply #8 on: July 07, 2021, 08:36:03 am » |
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North American XB-70 Valkyrie - Feature from the National Museum of the USAF
The futuristic XB-70A was originally conceived in the 1950s as a high-altitude, nuclear strike bomber that could fly at Mach 3 (three times the speed of sound) -- any potential enemy would have been unable to defend against such a bomber.
By the early 1960s, however, new Surface-to-Air Missiles (SAMs) threatened the survivability of high-speed, high-altitude bombers. Less costly, nuclear-armed ICBMs (Intercontinental Ballistic Missiles) were also entering service. As a result, in 1961, the expensive B-70 bomber program was canceled before any Valkyries had been completed or flown.
Even so, the USAF bought two XB-70As to test aerodynamics, propulsion and other characteristics of large supersonic aircraft. The first XB-70A, on display here, flew in September 1964, and it achieved Mach 3 flight in October 1965. The second Valkyrie first flew in July 1965, but in June 1966, it was destroyed following an accidental mid-air collision. The third Valkyrie was not completed.
The first XB-70A airplane continued to fly and generate valuable test data in the research program until it came to the museum in 1969.
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Dreadnought
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« Reply #9 on: November 26, 2021, 10:18:38 am » |
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XB-70 Valkyrie: America’s Mach 3 Super Bomber Ever Built
The North American Aviation XB-70 Valkyrie was the prototype version of the planned B-70 nuclear-armed, deep-penetration supersonic strategic bomber for the United States Air Force Strategic Air Command. Designed in the late 1950s by North American Aviation (NAA), the six-engined Valkyrie was capable of cruising for thousands of miles at Mach 3+ while flying at 70,000 feet (21,000 m).
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Dreadnought
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« Reply #10 on: December 17, 2021, 04:48:18 pm » |
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XB-70 Valkyrie iz kolekcije National Museum of the USAF u Wright-Patterson AFB, Ohio. Razglednica iz muzeja, verovatno iz 70-ih godina. [ Attachment: You are not allowed to view attachments ] [ Attachment: You are not allowed to view attachments ]
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Perun
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« Reply #11 on: December 17, 2021, 05:24:36 pm » |
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Perun
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« Reply #12 on: December 17, 2021, 05:24:51 pm » |
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ssekir75
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« Reply #13 on: December 17, 2021, 06:55:13 pm » |
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из неког разлога ми личи на богомољку. као одговор на њега направљен је миг 25
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Kubovac
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« Reply #14 on: September 20, 2022, 01:42:10 pm » |
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XB-70 Valkyrie u Nacionalnom muzej američkog vazduhoplovstva (National Museum of the U.S. Air Force):
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