The EC-121 Warning Star was a military airborne early-warning and radar-surveillance family derived from Lockheed's Constellation line. Large dorsal and ventral radomes carried search and control equipment that extended air-defense detection beyond ground radar coverage; U.S. Navy and Air Force crews also used specialized variants for reconnaissance and command-and-control missions. Its long service from the 1950s through the Cold War made it a foundational predecessor to later AWACS systems.
Alerts for directly linked future launches and major activity.