hello boner.00 Glad to know that you are still active in this forum. Well here's what I have gathered about your question
Sailboats are not limited to moving only in the general direction
of the wind. A sailboat can move in an upwind direction at an angle
of about 45 degrees off from directly against the wind. If the boat
needs to sail to a location directly upwind, then it must zig-zag
toward the goal. That's called tacking. The Egyptians and
Phonecians were doing this in their early history.