RESEARCH AND DEVELOPMENT IN THE FIELD OF HIGH ALTITUDE PLASTIC BALLONS Open PDF Document Details Document Type Technical Report Publication Date Feb 04, 1953 Accession Number AD0024204 Entities Organizations University of Minnesota Tags Communities of Interest Advanced Electronics C4I Energy and Power Technologies Human Systems DTIC Thesaurus Topics Accuracy Aerodynamic Drag Air Force Air Force Facilities Altitude Convection Cosmic Rays Elevation Films High Altitude Instrumentation Low Altitude Measurement Meteorology Power Reliability Security