UAV Collision Bolsters Sense-And-Avoid Systems

A ground-based sense-and-avoid system being prototyped by the U.S. Army would have prevented the mid-air collision of a C-130 Hercules airlifter with RQ-7 Shadow unmanned aircraft at a forward operation base in eastern Afghanistan on Aug. 15, a service official says.

“Had we been operational with GBSAA [ground-based ...