How do you calculate forces in guy wires? Here is scenario: Tower 80 feet high Two Antennas spaced 10 feet totaling 25 sq feet (bottom 15 top 10 sq feet) on 22 feet, 2.5" dia. mast Rotor is Orion 6 feet below top plate Wind 80 M/h What are the forces in guy wires then? How strong the guy wires I need? 73 de Andy - VA3PL