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The Scout family of rockets were American launch vehicles designed to place small satellites into orbit around the Earth. The Scout multistage rocket was the first (and for a long time, the only) orbital launch vehicle to be entirely composed of solid fuel stages. The original Scout (an acronym for Solid Controlled Orbital Utility Test system) was designed in 1957 at the NACA Langley center. Scouts were used from 1961 until 1994. To enhance reliability the development team opted to use "off the shelf" hardware, originally produced for military programs. According to the NASA fact sheet:
The first successful orbital launch of a Scout, on February 16, 1961, delivered Explorer 9, a 7-kg satellite used for atmospheric density studies, into orbit.〔 (【引用サイトリンク】title=Scout ) 〕 The final launch of a Scout, using a Scout G-1, was on May 9, 1994. The payload was the Miniature Sensor Technology Integration 2 (''MSTI-2'') military spacecraft with a mass of 163 kg, which remained in orbit until 1998.〔 (【引用サイトリンク】title=Scout G )〕 The standard Scout launch vehicle was a solid propellant, four-stage booster system, approximately 75 feet (23 m) in length with a launch weight of 47,398 pounds (21,500 kilograms.)〔(【引用サイトリンク】title=NASA'S SCOUT LAUNCH VEHICLE )〕 == Technical data == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Scout (rocket family)」の詳細全文を読む スポンサード リンク
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