The National Scientific Balloon Facility (NSBF) Annual Report FY 1974 includes information on facilities, major equipment, long duration program, extreme altitude program, balloon materials and quality control, ballooning systems and test flights, consolidated instrument package, computer, aircra... Show moreThe National Scientific Balloon Facility (NSBF) Annual Report FY 1974 includes information on facilities, major equipment, long duration program, extreme altitude program, balloon materials and quality control, ballooning systems and test flights, consolidated instrument package, computer, aircraft tracking, termination package, weather radar, flight services by the NSBF crew, personnel, funding, committee meetings, safety, malfunction investigations, other meetings, and plans for FY 1975. During FY 1974, the NSBF flew 86 flights for 44 scientific groups from 34 institutions and 7 countries with a 82% success rate. Show less