distance_measuring_equipment
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distance_measuring_equipment [2014/11/23 17:12] tom |
distance_measuring_equipment [2015/02/13 21:36] tom |
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| Aircraft flying at low altitudes have a slant range (the hypotenuse of a triangle), in nautical miles, roughly equivalent to the ground distance in nautical miles. Since United Flight 823 was flying at low altitudes during its final minutes, "slant range" was not a great factor in determining distance, in my opinion. | Aircraft flying at low altitudes have a slant range (the hypotenuse of a triangle), in nautical miles, roughly equivalent to the ground distance in nautical miles. Since United Flight 823 was flying at low altitudes during its final minutes, "slant range" was not a great factor in determining distance, in my opinion. | ||
| - | **UPDATE** During the public hearing that took place in Knoxville, Tennessee in January 1965, Mr. Billy G. Aston-a test pilot for British Aircraft Corporation-testified that the distance measuring equipment on board United 823 stopped operating 47 miles from the Knoxville VORTAC-coinciding with a statement by the operator of Knoxville radar as to the point where contact United 823 was lost. Aston mentioned that the radar operator's statement was that he was busy with other air traffic and didn't give the aircraft any thought until he learned that the plane went down. He had assumed that the aircraft was at a low altitude that would have caused a loss of contact. The operator did state that he had attempted to radio the plane after losing contact but had received no acknowledgement.++ | + | **UPDATE** During the public hearing that took place in Knoxville, Tennessee in January 1965, Mr. Billy G. Aston-a test pilot for British Aircraft Corporation-testified that the distance measuring equipment on board United 823 stopped operating 47 miles from the Knoxville VORTAC-coinciding with a statement by the operator of Knoxville radar as to the point where contact with United 823 was lost. Aston mentioned that the radar operator's statement was that he was busy with other air traffic and didn't give the aircraft any thought until he learned that the plane went down. He had assumed that the aircraft was at a low altitude and that would have caused a loss of contact. The operator did state that he had attempted to radio the plane after losing contact but had received no acknowledgement.++ |
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| ++ Knoxville News-Sentinel January 16, 1965 | ++ Knoxville News-Sentinel January 16, 1965 | ||
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distance_measuring_equipment.txt ยท Last modified: 2015/02/13 21:42 by tom
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