Sailing vessel

A sailing vessel comprising:

• a first end portion that comprises:
• a sail having a first edge and a second edge that define a plane of the sail, the first edge having a first end and a second end, wherein the sailing vessel is characterized by a longitudinal axis perpendicular or substantially perpendicular to the first edge;
• a first float coupled to the first end of the first edge;
• and
• a second float coupled to the second end of the first edge, wherein the first float and the second float are configured to provide buoyancy to the sailing vessel;
• a first line coupled to the first end of the first edge;
• a second line coupled to the second end of the first edge;
• a second end portion that comprises:
• a cockpit;
• a rudder;
• a tiller coupled to the rudder and configured to rotate the rudder to change a heading of the sailing vessel;
• a third float configured to provide buoyancy to the sailing vessel;
• and
• a sail-control system including:
• a pulley coupled to the first line and the second line;
• and
• a handle coupled to the pulley and configured to rotate the pulley to adjust a length of the first line relative to a length of the second line, thereby adjusting an angle between the first edge of the sail and the longitudinal axis;
• and
• a mast arranged in between the first end portion and the second end portion and configured to keep the sail raised through coupling with the second edge.