Still, the Axis collapse did not dissolve the Goodfellow mission. The contingent there continued to train pilots into the postwar era, primarily for large, multiengine piston and turboprop aircraft, first on the AT-6 Texan, the T-28 Trojan, and then, beginning in 1954, on the twin-engine TB-25 and B-25 Mitchell. On 3 September 1958, with nearly 20,000 aviators to its credit, Goodfellow graduated its last class of pilots, as the Air Force and Air Training Command (ATC) transitioned to the new Undergraduate Pilot Training construct with T-37 and T-38 Talon aircraft that required minimum 8000-ft (2400-m) runway lengths, far longer than Goodfellow's 5500-ft primary runways.