28 agencies were authorized to fly helicopters near Reagan Airport before deadly crash
The Army was one of 28 government agencies authorized to fly helicopters near Ronald Reagan National Airport before its Black ...
Interesting Engineering on MSN54m
Tracking system was off in US Army helicopter that collided with passenger jet: Senator
It was disclosed that the helicopter had turned off its Automatic Dependent Surveillance-Broadcast (ADS-B) system, a sophisticated tracking technology designed to provide real-tim ...