1. The problem statement, all variables and given/known data A plane flies at 480km/h, with wings tilted at 40 degrees to the horizontal. What is the radius of circle in which plane is flying? (hc0108, ignore the contents in this rbacket) 3. The attempt at a solution I ahve no idea how you can calculate the radius from that, and the solution was given rather shabbily as [tex] tan\theta=v_p^2/rg [/tex] I seriously have no idea how you could calculate the radius by just knowing that its wings are tilted at that angle, what if the plane is a point mass? then the question makes no sense at all.