The work effort related in this report spans a period commencing 15 June 1965 through 15 February 1967. An experimental buoy was constructed capable of launching sounding rockets automatically and remotely. Firings are controlled to assure that the quadrant elevation of each launch is never less than 80 degrees despite the buoy motions. The rocket used during the test (2.75 in. FFAR) is capable of projecting the rocketsonde payload to 22,500 feet. As the rocketsonde commences its parachuted descent, receivers aboard the buoy automatically acquire the signal and the record of the data. As the rocketsonde commences its parachuted descent, receivers aboard the buoy automatically acquire the signal and the record the data. Althouth rocketsondes were not available during the period covered, simulation testing was performed by substituting balloon launched radiosondes (AN/AMT-11). Tests were conducted at the University of Michigan Keweenaw Rocket Range at Lake Superior and at the contractor's facility. (Author)


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