Little Joe 1A (LJ-1A) was an unmanned rocket launched as part of NASA's Mercury program on November 4, 1959. This flight, a repeat of the Little Joe 1 (LJ-1) launch, was to test a launch abort under high aerodynamic load conditions. Due to a delayed in the escape motor startup, the abort maneuver was not accomplished at the desired dynamic pressure, requiring a repeat of the test.
Little Joe was a solid-fueled booster rocket used by NASA for eight launches from 1959-1960 from Wallops Island, Virginia to test the launch escape system and heat shield for Project Mercury capsules.
North American Aviation (NAA) was a major American aerospace manufacturer, responsible for a number of historic aircraft, including the T-6 Texan trainer, the P-51 Mustang fighter, the B-25 Mitchell bomber, the F-86 Sabre jet fighter, the X-15 rocket plane, and the XB-70, as well as Apollo command and service module, the second stage of the Saturn V rocket, the Space Shuttle orbiter and the B-1 Lancer.WIKI