What is the corner between the luff and foot called?

• A. Head
• B. Luff
• C. Tack
• D. Leech

Answer: (C)

In sailing, sails have four corners where their edges meet: the head (top corner), the tack (forward lower corner), the clew (aft lower corner), and the corners along the luff and leech. The corner where the luff (the leading edge along the mast) meets the foot (the bottom edge along the boom) is called the tack. This forward lower corner is where the sail is attached to the vessel, forming the sail’s forward-most bottom point. The other terms describe the remaining edges: the head is the top edge, and the leech is the trailing edge. So the corner between the luff and the foot is the tack.