A

David

Darling

Walker, Joseph Albert (1921–1966)

Joseph Walker

Joseph Walker was chief research pilot at the Flight Research Center who set a world altitude record of 108 kilometers (354,000 feet) in the X-15 rocket plane on August 22, 1963. He later tested the Lunar Landing Research Vehicle (LLRV). Walker was killed when his F-104 collided with an XB-70 bomber, with which he was flying in formation.