Arcas (rocket)
Arcas (originally "All-Purpose Rocket for Collecting Atmospheric Soundings", also designated Big Boy Rocket or "PWN-6") was the designation of an American sounding rocket, developed by the Atlantic Research Corp. (now Atlantic Richfield Company (ARCO)), Alexandria, Va.
The Arcas sounding rocket is an unguided vehicle with a diameter of 4.5 inches designed to carry payloads of 12 pounds or less to heights in excess of 200,000 feet when launched from sea level. It launched between July 31, 1959, and August 9, 1991, at least 421 times. The Arcas has a maximum flight altitude of 52 kilometers, a takeoff thrust of 1.5 kN, a takeoff weight of 34 kilograms, and a diameter of 11 centimeters. The Arcas was 2.30 m long and had a fin span of 0.33 m.
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