If you move the jib leads aft, what happens to the jib's leech tension and foot fullness?

• A. More leech tension and fuller foot
• B. Less leech tension and flatter foot
• C. More leech tension and flatter foot
• D. Less leech tension and fuller foot

Answer: (B)

Moving the jib leads aft changes where the sheet pulls on the sail. When the leads are moved toward the stern, the pull on the clew shifts aft and lower, reducing how taut the leech is. A looser leech means less leech tension. At the same time, the force direction becomes more aft, so the bottom edge isn’t pulled up as strongly and the foot settles into a shallower, flatter shape. So the result is less leech tension and a flatter foot. This trim helps depower the jib in certain wind conditions and can improve balance, especially upwind.