Pilot Neil Armstrong with X-15 #1

NASA test pilot Neil Armstrong is seen here next to the X-15 ship #1 (56-6670) after a research flight. The X-15 was a rocket-powered aircraft 50 feet long with a wingspan of 22 feet. It was a missile- shaped vehicle with an unusual wedge-shaped vertical tail, thin stubby wings, and unique side fairings that extended along the side of the fuselage.