Marine Corps helicopter retrieves astronaut V.. | Free public domain photo - 441696

21 july 1961 army astronaut atlantic ocean cc0 chopper creative commons creative commons 0 editorial helicopter helicopters human spaceflight hus-1 hus-1 helicopter liberty bell liberty bell 7 logistic logistics mercury astronaut mercury mr-4 flight mercury project recovery mercury no.11 mercury spacecraft mercury-reddstone (mr)-4 mercury-reddstone (mr)-4 mission mercury-redstone 4 mercury-redstone launch vehicle military project mercury public domain recovery redstone mrlv mr-8 rescue soldier test flight transport transportation u.s. marine corps u.s. marine corps helicopter virgil grissom virgil i. grissom virgil i. gus grissom war water landing