Convair F-102 Delta Dagger

The F-102 was developed from the XF-92A delta wing research aircraft of the late 1940s.

The YF-102A made its first flight on 24 October 1953, but was lost in an accident nine days later. The second aircraft flew on 11 January 1954, confirming a dismal performance, far below the requirements. The problem was solved by the use of the area-ruled fuselage, and the modified aircraft, Model 8-90, first flew on 19 December 1954, achieving a speed of Mach 1.22 and an altitude of 53,000 ft (16,200 m).