"K class" . . . . . . . . . . . "97.65" . . . . "''K''-class" . "Soviet K-class submarine" . "41.67" . "K-class submarine (Soviet)" . "7.4" . . . "''K-21''" . . . "Soviet K-class submarine" . "K-class" . . "K-class submarine" . "K type" . . . . . .