Tags: Artificialsatellite, Satellite.
Mercury-Redstone 4 was the second United States human spaceflight on July 21 1961. The suborbital Project Mercury flight was launched with a Mercury-Redstone Launch Vehicle MRLV-8. The spacecraft Mercury capsule #11 was named Liberty Bell 7 and piloted by astronaut Virgil I. Gus Grissom.The flight lasted 15 minutes 30 seconds reached an altitude of more than 102.8 nautical miles (190.4 km) and traveled 262.5 nautical miles (486.2 km) downrange landing in the Atlantic ocean.
