Commercial aircraft use very high frequency (VHF) radios to communicate, while military operate on ultra ... "If a system were to give what we call a resolution advisory telling pilots to descend ...
Although it lost out on a major US Army contract to develop a new long-range surveillance aircraft based on a Bombardier ...
Entering U.S. military service in 1983 as the replacement for the C-140B, the C-20 serves as a primary lift aircraft for high-ranking U.S. military and civilian officials. The C-20G (Gulfstream ...
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