Four Lockheed T-33A jet trainers were operated from 1958 to 1973. They were used for support and flight research.

T-33A (49-0939) arrived at NACA High Speed Flight Station on February 5, 1958. It departed September 20, 1961 to Davis-Monthan AFB, Arizona for storage.

T-33A (51-4299) arrived at NASA Flight Research Center on April 25, 1961. It departed May 31, 1961 to Davis-Monthan AFB, Arizona for storage.

T-33A (51-6692) arrived at NASA Flight Research Center on June 2, 1961. It was destroyed in a non-fatal crash December 26, 1962.

T-33A (55-4351) (NASA 815) arrived at NASA Flight Research Center on January 9, 1963. It was used in a monocular vision study. It departed September 10, 1973 to Redding, California.