7-21 in 1961 - Capt. Virgil "Gus" Grissom became the second American to rocket into a sub-orbital pattern around the Earth. He was flying on the Liberty Bell 7. He would end up having his capsule hatch blast open before it should have and sank the Liberty Bell 7. Years later it was finally recovered off coast of FL and Guss Grissom's version of what happened was finally proven correct.