<Tr> <Td> Destroyer </Td> <Td> ship </Td> <Th> DD </Th> </Tr> <Tr> <Td> escort </Td> <Th> DE </Th> </Tr> <P> Aircraft carriers are ships designed primarily for the purpose of conducting combat operations by aircraft which engage in attacks against airborne, surface, sub-surface and shore targets . Contrary to popular belief, the "CV" hull classification symbol does not stand for "carrier vessel". "CV" derives from the cruiser designation, with the v for French voler, "to fly". Aircraft carriers are designated in two sequences: the first sequence runs from CV - 1 USS Langley to the very latest ships, and the second sequence, "CVE" for escort carriers, ran from CVE - 1 Long Island to CVE - 127 Okinawa before being discontinued . </P> <Ul> <Li> AV: Seaplane Tender (retired) </Li> <Li> AVG: Auxiliary Aircraft Ferry (Escort carrier) (1941--42) </Li> <Li> AVD: Seaplane Tender Destroyer (retired) </Li> <Li> AVP: Seaplane Tender, Small (retired) </Li> <Li> AVT (i) Auxiliary Aircraft Transport (retired) </Li> <Li> AVT (ii) Auxiliary Training Carrier (retired) </Li> <Li> ACV: Auxiliary Aircraft Carrier (Escort carrier) (1942) </Li> <Li> CV: Fleet aircraft carrier (1921--1975), multi-purpose aircraft carrier (1975--present) </Li> <Li> CVA: Aircraft Carrier, Attack (category merged into CV, 30 June 1975) </Li> <Li> CV (N): Aircraft Carrier, Night (Deck equipped with lighting and pilots trained and for nighttime fights) (1944) (retired) </Li> <Li> CVAN: Aircraft Carrier, Attack, Nuclear - powered (category merged into CVN, 30 June 1975) </Li> <Li> CVB: Aircraft Carrier, Large (Original USS Midway class, category merged into CVA, 1952) </Li> <Li> CVE: Escort aircraft carrier (retired) (1943--retirement of type) </Li> <Li> CVHA: Aircraft Carrier, Helicopter Assault (retired in favor of several LH - series amphibious assault ship hull codes) </Li> <Li> CVHE: Aircraft Carrier, Helicopter, Escort (retired) </Li> <Li> CVL: Light aircraft carrier or Aircraft Carrier, Small (retired) </Li> <Li> CVN: Aircraft Carrier, Nuclear - powered </Li> <Li> CVS: Antisubmarine Aircraft Carrier (retired) </Li> <Li> CVT: Aircraft Carrier, Training (changed to AVT (Auxiliary)) </Li> <Li> CVU: Aircraft Carrier, Utility (retired) </Li> <Li> CVG: Aircraft Carrier, Guided Missile (retired) </Li> <Li> CVV: Aircraft Carrier, Vari - Purpose, Medium (retired unused) </Li> </Ul>

What does cv stand for in the navy
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