3 research outputs found

    Control Characteristics of a Buoyant Quad-Rotor Research Aircraft

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    Comparison of analytically and experimentally determined dynamic behavior of tethered balloons : scientific report no. 1 /

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    Mathematical tools were developed previously to analyze the dynamic behavior of tethered balloon systems. The model for the tethered balloon system consists of the streamlined balloon and a tether made up of three discrete links. The tools consist of the linearized characteristic equations which incorporate the physical, aerodynamic and mass characteristics of the system and the dynamic simulation computer program which determines the response of the tethered balloon systems to wind disturbances. A tethered balloon system consisting of a 70,000 cubic foot aerodynamically shaped balloon and a 0.52 inch diameter Wolaro tether was flown at Fair Site on White Sands Missile Range to obtain experimental motion data."30 March 1973.""AD 762210.""AFCRL-TR-73-0284."This work is part of the library's "Parachute History Collection", donated by the Airdrop/Aerial Delivery Directorate, Natick Soldier Center, US Army Research Development & Engineering Command, through the American Institute of Aeronautics and Astronautics Aerodynamic Deceleration Systems Technical Committee.Includes bibliographical references.Mathematical tools were developed previously to analyze the dynamic behavior of tethered balloon systems. The model for the tethered balloon system consists of the streamlined balloon and a tether made up of three discrete links. The tools consist of the linearized characteristic equations which incorporate the physical, aerodynamic and mass characteristics of the system and the dynamic simulation computer program which determines the response of the tethered balloon systems to wind disturbances. A tethered balloon system consisting of a 70,000 cubic foot aerodynamically shaped balloon and a 0.52 inch diameter Wolaro tether was flown at Fair Site on White Sands Missile Range to obtain experimental motion data.Photocopy.Air Force Cambridge Research LaboratoriesMode of access: Internet

    SEER: A Delphic approach applied to information processing

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