▁only ▁once ▁to ▁design ate ▁an ▁Ant is ub marine ▁or ▁Sea ▁Control ▁squad ron . ▁ ▁V X E ▁and ▁V X N : ▁Dis est ab lished ▁and ▁De activ ated ▁Ant ar ctic ▁Development ▁( V X E ) ▁and ▁Ocean ographic ▁Development ▁( V X N ) ▁squad rons ▁The ▁V X E ▁and ▁V X N ▁design ations ▁were ▁created ▁in ▁ 1 9 6 9 ▁to ▁design ate ▁two ▁special ized ▁V X ▁squad rons ▁which ▁were ▁supporting ▁Ant ar ctic ▁and ▁Ocean ographic ▁scientific ▁research . ▁The ▁V X N ▁design ation ▁was ▁dis cont in ued ▁in ▁ 1 9 9 3 ▁with ▁the ▁dis est ab lish ment ▁of ▁V X N - 8 ▁and ▁the ▁V X E ▁design ation ▁was ▁dis cont in ued ▁in ▁active ▁use ▁with ▁the ▁de activ ation ▁of ▁V X E - 6 , ▁though ▁it ▁continues ▁to ▁design ate ▁the ▁in active ▁squad ron . ▁ ▁Squadron ▁Design ations ▁still ▁in ▁use ▁ ▁V A Q : ▁Dis est ab lished ▁and ▁De activ ated ▁T act ical ▁Electron ics ▁War fare ▁squad rons ▁and ▁Electron ic ▁Att ack ▁squad rons ▁In ▁ 1 9 6 8 ▁the ▁V A Q ▁design ation ▁was ▁established ▁to ▁design ate ▁" T act ical ▁Electron ics ▁War fare ▁Squadron ". ▁Prior ▁to ▁the ▁creation ▁of ▁the ▁V A Q ▁design ation ▁there ▁were ▁two ▁squad rons ▁( VA W - 1 3 ▁and ▁V AW - 3 3