Screen shot of San Antonio, Texas 'UFO' sighting
The U-2 spy planes, capable of flyinng over 60,000 feet were basically designed to reccointer the then USSR air space. It may be recalled that in 1960, the Soviet Union shot down a plane that was trying to enter the Soviet Union by going to Pakistan's air space to Norway's air space.
'In the mid-1950s, most commercial airliners flew at altitudes between 10,000 and 20,000 feet and [many] military aircraft…operated at altitudes below 40,000 feet.
Consequently, once U-2s started flying at altitudes above 60,000 feet, air-traffic controllers began receiving increasing numbers of UFO reports, ‘the document continues.
U-2 spy plane
Consequently, once U-2s started flying at altitudes above 60,000 feet, air-traffic controllers began receiving increasing numbers of UFO reports, ‘the document continues.
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