The idea of swing plane in golf dates back to 1957, and the renowned instructional manual, Ben Hogan’s Five Lessons. In the book, Hogan described the visual he imagined of a tilted pane of glass.
... In the famous illustration from the book, the glass had a hole cut out, allowing Hogan’s head to stick through at address. The pane of glass then rested on his shoulders while the bottom edge of the glass rested on the ground, in line with the intended target and bisecting the golf ball. Hogan’s belief was that the backswing should remain parallel to the glass as the club is swung to the top. Hogan tried to visualize never crossing the plane and breaking the glass with either the backswing or the downswing.The idea of swing plane in golf dates back to 1957, and the renowned instructional
... manual, Ben Hogan’s Five Lessons. In the book, Hogan described the visual he imagined of a tilted pane of glass. In the famous illustration from the book, the glass had a hole cut out, allowing Hogan’s head to stick through at address. The pane of glass then rested on his shoulders while the bottom edge of the glass rested on the ground, in line with the intended target and bisecting the golf ball. Hogan’s belief was that the backswing should remain parallel to the glass as the club is swung to the top. Hogan tried to visualize never crossing the plane and breaking the glass with either the backswing or the downswing.