Sailboats cannot sail directly upwind; it is usually less than optimal, and can be dangerous to sail directly downwind.
It is usually less than optimal and can be dangerous to sail directly downwind. Sailboats cannot sail directly upwind.
Sailboats cannot sail directly upwind. It is usually less than optimal and can be dangerous to sail directly downwind.
Sailboats cannot sail directly upwind. It is usually less than optimal and can be dangerous to sail directly downwind.