Memorandum presenting a series of tests made on a full-scale Northrop XB-62 missile to determine the cause of a directional out-of-trim condition which was encountered on the initial missile flight tests. The results indicated that the directional out-of-trim condition was caused by aerodynamic loads induced by engine operation.

Tests of the Northrop XB-62 missile in the Ames 40 by 80 foot wind tunnel. Document ID. 19710073557 . Acquisition Source. Legacy CDMS . Document Type. Other - NACA Research Memorandum . Authors. Graham, D. (NASA Ames Research Center Moffett Field, CA, United States) Date Acquired. August 6, 2013 . Publication Date.

XB-70是由美國空軍戰略司令部（Strategic Air Command）授權北美航空洛杉磯分部所設計製造，XB-70計畫原本是一個設計要用來取代B-52同溫層堡壘式轟炸機，以超音速、超高空飛行的方式突破敵對國家的防空網，進一步投擲傳統或核子武器作為訴求的開發計畫。

2025年2月4日 · Originally a prototype Mach 3 strategic bomber, 62-0001 (also known as AV-1) and it’s sister ship, XB-70A-2-NA, 62-0207, (AV-2), were built and used by the Air Force and NASA as high-speed research aircraft.

The North American Aviation XB-70 Valkyrie is a retired prototype version of the planned B-70 nuclear-armed, deep-penetration supersonic strategic bomber for the United States Air Force Strategic Air Command.

Second prototype of the XB-70A Valkyrie was involved in a mid-air collision with a Lockheed F-104 Starfighter during a photo shooting over Barstow, CA. The pilot of the Valkyrie ejected and landed serious injured.

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The Douglas XB-42 Mixmaster is an experimental American bomber aircraft, designed for a high top speed. The unconventional approach was to mount the two engines within the fuselage driving a pair of contra-rotating propellers mounted at the tail in a pusher configuration, leaving the wing and fuselage clean and free of drag-inducing protrusions.

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