"River-class offshore patrol vessel" . . "13.5" . "River class patrol vessel" . . . . "River-class offshore patrol vessel" . "River-class Batch II offshore patrol vessels" . "HTMS ''Krabi''" . "class" . "River-class" . "2.0E9" . "37.04" . . . "79.5" . . "River-class patrol vessels" . . . "1.7E9" . . . .