xb-70 valkyrie

North American scoured available literature to find any additional advantage. President Eisenhower responded that the reconnaissance and strike mission was “crazy” since the nuclear mission was to attack known production and military complexes, and emphasized that he saw no need for the B since the ICBM is “a cheaper, more effective way of doing the same thing”. Redesignated A-series B B White House Office, Records of Provisions for air-to-surface missiles and external fuel tanks were requested afterward.

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June 23, — To reduce program costs, the F would share two of the engines, the escape capsule, and some smaller systems with the B The deficiencies discovered on AV-1 were almost completely solved on the second XB, which first flew on 17 July They also featured flush cockpits to maintain the highest fineness ratio possible in spite of its effects on visibility. Al White XB pilot ejected, sustaining serious injuries, including the crushing of his arm by the closing clamshell-like escape crew capsule moments prior to ejection.

Harrison Storms shaped the aircraft [71] with a canard surface and a delta wingwhich was built largely of stainless steelsandwiched honeycomb panels, and titanium. Kennedy ‘s campaign was that Eisenhower and the Republicans were weak on defense, and pointed to the B as an example.


Under normal conditions this caused an increasing nose-down trim, which had to be offset by moving the control surfaces, increasing drag. The wing tips were also lowered partially in this flight. Archived from the original bx-70 16 August A History of Hypersonics, part 1″part 2″.

Guidance did not require wide-area tracking or calculation of an intercept course: Has He a Useful Role?

North American XB Valkyrie – Wikipedia

Popular MechanicsAprilp. Then interest increased due x-70 the politics of presidential campaign of Blue Ridge Summit, Pennsylvania: The F then exploded, destroying the Valkyrie’s rudders and damaging its left wing. From the mids, there was interest in using nuclear-powered aircraft in the bomber role. Adding to the problems, the zip fuel program was canceled in To take maximum advantage of this effect, they redesigned the underside of the aircraft to feature a large triangular intake area far forward of the engines, better positioning the shock in relation to the wing.

Unique among aircraft of its size, the outer portions of the wings were hinged, and could be pivoted downward by up to 65 degrees, acting valkyrei as a type of variable-geometry wingtip device.

Central Intelligence Agency, It was later discovered that flying faster also made radar detection much more difficult due to an effect known as the blip-to-scan ratioand any reduction in tracking efficiency would further interfere with the operation and guidance of fighters. Flight International1 Octoberp. Life17 Octoberpp.

With an appropriate map of the missile sites, the bombers could fly between and around the defences. Most designs also carried a small amount of jet fuel for use during high-power portions of flight, such as takeoffs and high-speed dashes.


North American XB-70 Valkyrie

This page was last edited on 21 Aprilat Office of Air Force History, Project Oxcart, —” [ permanent dead link ]. The crew was reduced to only the two pilots, as a navigator and a bombardier were not needed for this research role.

Flying higher and faster made it more difficult for both; higher vqlkyrie allowed the xb-07 to fly out of range of the weapons more quickly, while higher altitudes increased the time needed for fighters to climb to the bombers, and greatly increased the size of the AAA weapons needed to reach those altitudes.

This helped trap the shock wave under the wing between the downturned wing tips. Prototypes, X-Planes and Experimental Aircraft. The USAF summary report of the accident investigation stated that, given the position of the F relative to the XB, Walker, the F pilot, would not have been able to see the XB’s wing, except by uncomfortably looking back over his left shoulder.

White House Office, Records of The XB used compression liftwhich arose from a shock wave generated by the sharp leading edge of the central engine intake splitter plate below the wing.