$_{Figure 6-7.}$  Examples of good (top) and poor (bottom) launch sites. In the top picture, the pilot would have adequate clearance above  the power lines at the far end of the field, as well as more than adequate area to layout the envelope. In the bottom picture, the pilot  would have a very short area to lay out. There are obvious obstacles, such as the trees and cell phone tower, which create hazards to a  safe launch. 6-7