A square sail is a sailing ship with one ( cutter ) or several fully rigged masts . With at least three fully rigged masts it is a full ship .
Masts that only have yards and square sails are referred to as fully rigged . In contrast, there are fore- such as in the schooner rigging .
↑ Website of the Förderverein Rahsegler Greif eV Greifswald , accessed on August 8, 2008
^ Website of the Maritime Museum of the Atlantic ( Memento of the original from December 28, 2010 in the Internet Archive ) Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed October 7, 2008
↑ Joachim Schult: Segler-Lexikon. 13th edition, Delius Klasing, Bielefeld 2008, page 472, ISBN 978-3-7688-1041-8