Nicknamed "The Whale" by its crews, the A-3 Skywarrior is the largest and heaviest aircraft ever designed for regular operation from an aircraft carrier. Although long since having lost their strategic bombing role, the Navy used electronic warfare and aerial tanker versions of the Skywarrior into the 1970s and a few remained in test programs as late as the 1990s. six A3D-1 bombers were converted to YA3D-1Q (YEA-3A) ECM aircraft with a pressurised crew compartment replacing the bomb bay. This one served the NATC at Patuxent River, MD