Mercury-Atlas 4 was an uncrewed test flight within NASA's Project Mercury program, launched on September 13, 1961, at 14:04:16 UTC from Cape Canaveral Air Force Station Launch Complex 14. The mission'

Mercury-Atlas 3 was an unmanned spaceflight of the Mercury program. It was launched unmanned on April 25, 1961 at 16:15 UTC, from Launch Complex 14 at Cape Canaveral, Florida. The Mercury capsule cont