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The Lockheed Martin SR-72, colloquially referred to as "Son of Blackbird",[1]is an American hypersonicUAVconcept intended for intelligence, surveillance and reconnaissance(ISR) proposed privately in 2013 by Lockheed Martinas a successor to the retired Lockheed SR-71 Blackbird. In 2018, company executives said an SR-72 test vehicle could fly by ...
Manufacturer. Lockheed Martin / Boeing. First flight. March 29, 1996. The RQ-3 DarkStar (known as Tier III- or "Tier three minus" during development) is an unmanned aerial vehicle (UAV). Its first flight was on March 29, 1996. The Department of Defense terminated DarkStar in January 1999, after determining the UAV was not aerodynamically stable ...
The Tycoon, [75] for the energetic and ambitious conduct of his Civil War administration. Andrew Johnson Sir Veto , because of the large number of legislative vetoes he issued during his presidency; [ 76 ] 29 in total, (the most at the time).
YF-23 YF-23 flying over Edwards Air Force Base. Role Stealth fighter technology demonstrator Type of aircraft National origin United States Manufacturer Northrop / McDonnell Douglas First flight 27 August 1990 Status Canceled Primary user United States Air Force Produced 1989–1990 Number built 2 The Northrop/McDonnell Douglas YF-23 is an American single-seat, twin-engine, supersonic stealth ...
Ralph Anspach was born on 15 March 1926 in Gdańsk, [1] where he grew up and belonged to several Zionist youth groups. [2] In 1938, he escaped Germany for the US. In 1940, Anspach lived on West 94th Street, New York, New York, with his father, mother, and brother. [3]
this was the first part of North America to have its code changed three times: from 213 to 714 1951: to 619 in 1982, and to 760 in 1997. was to have originally split off the portion of 760 serving San Diego County to a new 442 area code in late 2008/early 2009; that plan was cancelled. 2009: overlaid by 442. 761.
Zone 5 uses eight 2-digit codes (51–58) and two sets of 3-digit codes (50x, 59x) to serve South and Central America. Zone 6 uses seven 2-digit codes (60–66) and three sets of 3-digit codes (67x–69x) to serve Southeast Asia and Oceania. Zone 7 uses an integrated numbering plan; two digits (7x) determine the area served: Russia or Kazakhstan.
DEFCON. The defense readiness condition ( DEFCON) is an alert state used by the United States Armed Forces. [1] [2] For security reasons, the US military does not announce a DEFCON level to the public. [1] The DEFCON system was developed by the Joint Chiefs of Staff (JCS) and unified and specified combatant commands. [3]