1991 LLWAS anemometer test program
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1992-01-01
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Edition:Final report; Nov. 1990 - Sept. 1991
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Abstract:Performance tests of anemometers under icing and snow conditions were conducted during 1990-1991 on the test field at ; Rochester, MN and in icing chambers and wind tunnels at Sterling, VA. These tests were done for the FAA LLWAS program ; to test sensors for the next phase of LLWAS. ; Sensors from ten manufacturers were accepted into the test program from the respondents to the Commerce Business Daily. ; These sensors were required first to pass an icing chamber test in order to be field tested. The field tests tasted ; from November 1990 to July 1991. Afterwards, all sensors were sent to Sterling, VA for wind tunnel tests in September ; 1991. ; Alt units from the eight manufacturers that passed the icing chamber test were in the field test. A propeller/vane ; sensor that failed the icing chamber test was put in the field as a reference. All the units that passed were not ; affected by icing during the field test although a mechanical unit was affected by snow during one event. The ; propeller/vane was affected by icing during one event. Wind tunnel tests were done to check starting thresholds and ; calibration anomalies found in the field. ; It was concluded that there is no one "winning" technology that could be found from the tests.
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Main Document Checksum:urn:sha-512:c70575f3ec02193ca80533773aff1fd79ede18d91188e6d86b2c492759db6202b03011acf7c09ffdb33a0a78cd81d9b2b16bddc4bfcaee37ac9b92c9aea6e67d