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The BLAST high-altitude balloon just before launch on June 12, 2005. High-altitude balloons or stratostats are usually uncrewed balloons typically filled with helium or hydrogen and released into the stratosphere, generally attaining between 18 and 37 km (11 and 23 mi; 59,000 and 121,000 ft) above sea level.
The balloon splashed down within U.S. territorial waters 6 nautical miles (11 km) off the coastline, where the water was 47 feet (14 m) deep. The downing was the first recorded by an F-22 aircraft, the first of an aircraft over U.S. territory since World War II, and is speculated to be the highest altitude air-to-air kill in recorded history. [105]
The hot air balloon is the first successful human-carrying flight technology. The first untethered manned hot air balloon flight in the world was performed in Paris, France, by Jean-François Pilâtre de Rozier and François Laurent d'Arlandes on November 21, 1783, [1] in a balloon created by the Montgolfier brothers. [2]
The presence of the high-altitude balloon comes approximately one year after a high-altitude balloon originating from China drifted over the US, causing national attention and political tension.
The U.S. military is monitoring an unidentified "small" balloon flying at high altitudes over the west, according to two U.S. officials and a defense official.
Stapp was to foster the high-altitude balloon tests that would later lead to Kittinger's record-setting leap from over 102,800 feet (31,300 m). In 1957, as part of Project Manhigh, Kittinger set an interim balloon altitude record of 96,760 feet (29,490 m) in Manhigh I, for which he was awarded his first Distinguished Flying Cross. [5] [6]