July 21, a.m. EST. The launch was originally scheduled for July 18, but was rescheduled to July 19, because of unfavorable weather.
Astronaut Gus Grissom climbs into "Liberty Bell 7" spacecraft before launch on the morning of July 21, Astronaut John Glenn, Grissom's.
Mercury-Redstone 4 was the second United States human spaceflight, on July 21 , The suborbital Project Mercury flight was launched with a Mercury- Redstone Launch Vehicle, MRLV The spacecraft, Mercury capsule #11, was nicknamed the Liberty Bell 7, and . Liberty Bell 7 was launched at UTC, July 21,
Crew: Virgil Grissom . Backup Crew: John Glenn. Launch: Location: Cape Canaveral Air Force Station Pad: LC Date: 21 July
Mercury Redstone 4: Photos from Gus Grissom's Liberty Bell 7 Spaceflight On July 21, , the third of three attempt to launch the.
Mercury MR-4 Fact Sheet Written and Edited by Cliff Lethbridge. Mercury MR-4 ( NASA Code: Mercury 11/Liberty Bell 7). Launch Date: July 21, Launch.