Angle1 -15   0  15  30  45  45  45  45  45  45  45   60   60
RelAng   0   0   0   0   0   0   0   0 -30 -60 -90 -120 -135
ExtLen 5.5 5.1 5.5 5.5 5.5 4.5 3.5 2.5 1.5 1.5 1.5  1.5  1.5