[DOC] [TLE] Mercury-Redstone 4 - Wikipedia [PAR] 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 ... The capsule sank into the Atlantic and was 
not recovered until 1999. [DOC] [TLE] Liberty Bell 7 Yields Clues to Its Sinking - latimes [PAR] Dec 12, 1999 ... Then came Gus Grissom's survival knife and post-flight checklist, his grease-
pencil ... The 7-foot Mercury space capsule, pulled from the Atlantic this ... The 
capsule ended up sinking after a successful suborbital flight, ... Even without the 
hatch, forever lost on the ocean floor, the resurrected Liberty Bell 7 is... [DOC] [TLE] Mercury Redstone 4 - nssdc - NASA [PAR] Mercury Redstone 4 (MR-4, also designated Liberty Bell 7) was the second flight 
of an ... on board (Virgil I. "Gus" Grissom) and the last suborbital manned flight. ... 
in the water while a helicopter attempted to lift the rapidly sinking spacecraft. ... 
Liberty Bell 7 was finally raised from its resting place on the bottom of the Atlantic
... [DOC] [TLE] Gus Grissom Didn't Blow The Hatch on Liberty Bell 7 - This Space ... [PAR] Jan 10, 2016 ... Notably, this capsule possessed an explosive-actuated hatch, unlike ... of the 
USS Randolph, shortly after being plucked out of the Atlantic Ocean. ... Grissom 
would then remove his helmet, wait for the hatch to blow on its ... Burgess' book, 
Liberty Bell 7: The Suborbital Mercury Flight of Virgil I. ..... Contact Us. [DOC] [TLE] Gus Grissom vs. the Media: Victim or Hero? - DatamanOS2.com [PAR] Gus's first space flight, aboard the Mercury Redstone "Liberty Bell 7," was ... went 
as expected, upon splashdown in the Atlantic Ocean, the 70 explosive ... who 
panicked, blew the explosive hatch off his capsule and allowed it to sink to ... 
Betty Grissom sued North American Rockwell several years after her husband's 
death. [DOC] [TLE] Salvage Team Finds Mercury Capsule In Atlantic - tribunedigital ... [PAR] May 3, 1999 ... Lost at sea for 38 years, astronaut Gus Grissom's Mercury capsule was found 
over the ... Liberty Bell 7 is still 3 miles deep in the Atlantic Ocean. [DOC] [TLE] From 'Greasy Grissom' to 'Gruff Gus': The Story of America's Second ... [PAR] Jul 21, 2013 ... The performance of the hatch on the Liberty Bell 7 mission would, in some ... As 
souvenirs for the flight, he took two rolls of Mercury dimesa ... The plan was for 
Grissom to eat breakfast and undergo his pre-flight physical examination. .... He 
therefore released the $2 million capsule to sink in 17,700 feet of... [DOC] [TLE] Mercury MR-4 - Encyclopedia Astronautica [PAR] Hatch blew after splashdown; capsule sank; astronaut barely saved before ... The 
Mercury capsule, Liberty Bell 7 , manned by Astronaut Virgil I. Grissom, ... This 
was the second and final manned suborbital Mercury Redstone flight, and ... His 
pulse rate ranged from 64 to 162 beats per minute, depending upon his feelings. [DOC] [TLE] Manned Space Chronology: Mercury MR-4 - Spaceline [PAR] The complete resource for space-related history, launch chronologies, ... Mercury 
MR-4 (NASA Code: Mercury 11/Liberty Bell 7) ... Capsule Nickname: Liberty Bell 
7 ... Launch attempts on July 18, 1961 and July 19, 1961 were scrubbed due to 
bad ... Grissom became the second American astronaut in a suborbital flight that
... [DOC] [TLE] #2. Liberty Bell 7, Gus Grissom. 7/21/1961. The second flight. Sub ... [PAR] Liberty Bell 7, Gus Grissom. 7/21/1961. The second flight. Sub-orbital 15 minutes. 
The capsule was lost when it sank upon splash-down. I believe it was recently... [DOC] [TLE] [July 22, 1961] Into Space  and the Deep Blue (The Flight of Liberty ... [PAR] Jul 22, 2016 ... The other improvement on Liberty Bell 7 was an explosive side

Question: In the 2nd U.S. suborbital flight, his Mercury capsule, Liberty Bell 7, sank in the Atlantic upon splashdown
Answer: Gus Grissom