Tanja sail

Tanja sail (Malay: layar tanjak) or tanja rig is a type of sail commonly used by the Austronesian people, particularly in Maritime Southeast Asia. It is also known as the tilted square sail, canted rectangular sail, rectangular balance lug, or balance lug sail in English. In historical sources, a tanja sail is sometimes incorrectly referred to as a lateen sail or simply square sail.