LynnBlakeGolf Forums - View Single Post - my golf swing Thread: my golf swing View Single Post #8 05-05-2007, 04:47 PM 6bmike Senior Member Join Date: Jan 2005 Location: Southern New Jersey Posts: 1,605 Originally Posted by jerry1967 I don't understand what is meant by straight plane line. Please explain? It is the line the incline plane is attached to on the ground. Like a roof as the incline plane, the gutter is the Straight Plane Line. This is the line that is traced. The "roof" (incline plane) can vary its angle. The "gutter" (plane line) is always straight. 6bmike View Public Profile Send a private message to 6bmike Find all posts by 6bmike