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Small Unmanned Aircraft Systems (sUAS) have the ability operate in chaotic and heterogeneous environments near the ground that are inaccessible to manned aircraft. This is significant because navigable airspace, which is in the public domain and preempted by federal laws, is defined by the minimum safe altitudes of flight. Since many sUAS arguably have no minimum safe altitude, they could potentially...
Controlled Meteorological (CMET) balloons are small airborne platforms that use reversible lift-gas compression to regulate altitude. These balloons have approximately the same payload mass as standard weather balloons but can float for many days, change altitude on command, and transmit meteorological and system data in near-real time via satellite. Since 2004, more than 50 CMET balloons have been...
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