Two experimental aircraft hygrometers using dry-ice heat sinks were designed and constructed, both units recorded frost points below -80C when flight tested at altitudes to 65,000 feet aboard a U-2 aircraft. A third hygrometer which requires no chemical heat sink was also designed, built and laboratory tested. In addition, a heat-transfer analysis was conducted to allow predictions of the instrument's capability as a function of altitude, free-air temperature and Mach number. This report describes the instruments and presents analytical and experimental results of the program. (Author)
Development of an Experimental Aircraft Hygrometer
1967
58 pages
Report
Keine Angabe
Englisch
Meteorological Data Collection, Analysis, & Weather , Laboratory & Test Facility Design & Operation , Avionics , Aircraft equipment , Hygrometers , Meteorological parameters , Dew point , Instrumentation , Heat sinks , Carbon dioxide , Thermoelectricity , Refrigeration systems , Heat transfer , Pressure , Flight testing , Tables , Utility planes , U-2A aircraft , Dry ice , Weather aircraft
NTRS | 1945
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