Convair F-106A Delta Dart (1959-1988) Pima Air and Space Museum, Tucson, Arizona, USA February 21, 2008
The Convair F-106A Delta Dart was the primary all-weather interceptor of the U.S. Air Force during its service period. Each airplane cost about $4.7 million in 1973, 342 were built. In 2014 the fleet would have cost about $8.5 billion dollars. The F-106A had a top speed of just over 1,500 m.p.h. at 40,000 feet and had an operational ceiling of 57,000 feet.