Answer: barquentines

AnswerCrossword Clue
barquentinesBARQUENTINE, a three-masted vessel, with the foremast square-rigged, and the mainmast and mizzenmast fore-and-aft-rigged also BARKANTINE, BARKENTINE, BARQUANTINE
barquentinesA sailing ship similar to a bark but square-rigged only on the foremast