What does sr-71 mean?

Definitions for sr-71
sr-71

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Wikipedia

  1. sr-71

    The Lockheed SR-71 "Blackbird" is a long-range, high-altitude, Mach 3+ strategic reconnaissance aircraft developed and manufactured by the American aerospace company Lockheed Corporation. It was operated by the United States Air Force (USAF) and NASA.The SR-71 was developed as a black project from the Lockheed A-12 reconnaissance aircraft during the 1960s by Lockheed's Skunk Works division. American aerospace engineer Clarence "Kelly" Johnson was responsible for many of the aircraft's innovative concepts. The shape of the SR-71 was based on that of the A-12, which was one of the first aircraft to be designed with a reduced radar cross-section. Initially, a bomber variant of the A-12 was requested by Curtis LeMay, before the program was focused solely on reconnaissance. Mission equipment for the reconnaissance role included signals intelligence sensors, side looking airborne radar, and a camera; the SR-71 was both longer and heavier than the A-12, allowing it to hold more fuel as well as a two-seat cockpit. The SR-71 entered service in January 1966. During aerial reconnaissance missions, the SR-71 operated at high speeds and altitudes (Mach 3.2 and 85,000 feet, 25,900 meters), allowing it to outrace or entirely avoid threats. If a surface-to-air missile launch was detected, the standard evasive action was simply to accelerate and outpace the missile. On average, each SR-71 could fly once per week due to the extended turnaround required after mission recovery. A total of 32 aircraft were built; 12 were lost in accidents with none lost to enemy action. In 1989, the USAF retired the SR-71 largely for political reasons; several were briefly reactivated during the 1990s before their second retirement in 1998. NASA was the final operator of the Blackbird, who used it as a research platform, and was retired in 1999. Since its retirement, the SR-71's role has been taken up by a combination of reconnaissance satellites and unmanned aerial vehicles (UAVs); a proposed UAV successor, the SR-72, is under development by Lockheed Martin, and scheduled to fly in 2025. The SR-71 has several nicknames, including "Blackbird" and "Habu". As of 2022 the SR-71 holds the world record it set in 1976 as the fastest air-breathing manned aircraft, previously held by the related Lockheed YF-12.

Wikidata

  1. SR-71

    SR-71 is an American rock band that was formed in Baltimore, Maryland. They are best known for their 2000 single "Right Now", their 2002 single "Tomorrow", and as the authors of Bowling for Soup's 2004 hit "1985". The name of the band came from SR-71 Blackbird, a supersonic surveillance aircraft of the United States Air Force. The band was originally known as Honor Among Thieves, and as would be the case with SR-71, singer/songwriter/guitarist Mitch Allan was the only constant member.

Suggested Resources

  1. sr-71

    Song lyrics by sr-71 -- Explore a large variety of song lyrics performed by sr-71 on the Lyrics.com website.

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Numerology

  1. Chaldean Numerology

    The numerical value of sr-71 in Chaldean Numerology is: 5

  2. Pythagorean Numerology

    The numerical value of sr-71 in Pythagorean Numerology is: 1

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"sr-71." Definitions.net. STANDS4 LLC, 2024. Web. 19 Mar. 2024. <https://www.definitions.net/definition/sr-71>.

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    one of four connected cavities in the brain; is continuous with the central canal of the spinal cord and contains cerebrospinal fluid
    A substrate
    B callathump
    C slur
    D ventricle

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