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Northrop X-21. The Northrop X-21A was an experimental aircraft designed to test wings with laminar flow control. It was based on the Douglas WB-66D airframe, with the wing-mounted engines moved to the rear fuselage and making space for air compressors. The aircraft first flew on 18 April 1963 with NASA test pilot Jack Wells at the controls. [ 1]
X.21 (sometimes referred to as X21) is an interface specification for differential communications introduced in the mid-1970s by the ITU-T. X.21 was first introduced as a means to provide a digital signaling interface for telecommunications between carriers and customers' equipment. This includes specifications for DTE / DCE physical interface ...
Music video. "X" on YouTube. " X " (originally titled " X Bitch ") is a song written and performed by British-American rapper 21 Savage and American record producer Metro Boomin featuring fellow Atlanta-based rapper Future. Produced by its lead performers, it was released on July 14, 2016 as the lead single from their collaborative extended ...
Developed into. Northrop X-21. The Douglas B-66 Destroyer is a light bomber that was designed and produced by the American aviation manufacturer Douglas Aircraft Company. The B-66 was developed for the United States Air Force (USAF) and is derivative of the United States Navy 's A-3 Skywarrior, a heavy carrier-based attack aircraft.
List of X-planes. Bell X-1-2. The X-planes are a series of experimental United States aircraft and rockets, used to test and evaluate new technologies and aerodynamic concepts. They have an X designator within the US system of aircraft designations, which denotes the experimental research mission. Not all US experimental aircraft have been ...
X21 (disambiguation) X21 may refer to: Northrop X-21, an experimental aircraft. SA-X-21 or S-400 (missile), a Russian anti-aircraft weapon system. X.21 (sometimes referred to as X21), an interface specification for differential communications. X21 (band) (次世代ユニット), a Japanese girl idol group. Category: Letter–number combination ...
The 9×21mm pistol cartridge (also known as the 9×21mm GP, 9×21mm IMI, 9mm IMI, 9×21mm Italian, or 9mm Italian) was designed by Jager (Loano, Italy), then adopted and commercialised by Israel Military Industries for those jurisdictions where military service cartridges, like the 9×19mm Parabellum, are or were illegal for civilian purchase ...
X-jendā [48] Xenogender [ 21 ] [ 49 ] can be defined as a gender identity that references "ideas and identities outside of gender". [ 26 ] : 102 This may include descriptions of gender identity in terms of "their first name or as a real or imaginary animal" or "texture, size, shape, light, sound, or other sensory characteristics".