Viking was a series of twelve sounding rockets designed and built by the Glenn L. Martin Company under the direction of the US Naval Research Laboratory, intended to supersede the German V-2 as a research vehicle. The Navy contracted for a series of ten large liquid-fueled rockets on 21 August 1946, originally called Neptune and renamed Viking in 1947. Powered by a Reaction Motors XLR10 engine burning ethyl alcohol and liquid oxygen, with a gimbaled thrust chamber that dispensed with the graphite exhaust vanes of the V-2, it was the most advanced large liquid-fueled rocket in the United States in the late 1940s and returned scientific data from the edge of space between 1949 and 1955. After twelve flights it was adapted as the first stage of the Vanguard satellite launch vehicle.
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was a series of twelve sounding rockets designed and built by the Glenn L. Martin Company
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the most advanced large, liquid-fueled rocket developed in the United States in the late 1940s
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returning valuable scientific data from the edge of space between 1949 and 1955
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engine was the largest liquid-fueled rocket engine developed in the United States up to that time
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was a series of twelve sounding rockets designed and built by the Glenn L. Martin Company
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the most advanced large, liquid-fueled rocket developed in the United States in the late 1940s
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