LynnBlakeGolf Forums - View Single Post - Arc of Approach Thread: Arc of Approach View Single Post #25 02-10-2009, 01:51 PM no_mind_golfer Senior Member Join Date: Oct 2008 Posts: 118 Its the Magnus effect.... Hi Yodeli click->Magnus Effect I can assure you I'm right and Homer is wrong. He wasn't either an aerodynamicist or an engineer. He was QC technician who did the best he could given limited knowledge. If you're going to teach it... you have an obligation to get it right IMOP. Glad I could be of some help. Originally Posted by yodeli Hi no_mind_golfer. I'm not an aeronautics engineer but I think Homer knew a bit about aerodynamics... I was just using chapter "2-B TRAJECTORY CONTROL" as a reference. I might be wrong but Homer is talking about the Venturi Effect in there: "A speeding, spinning ball is subject to the Venturi Effect, meaning that an increase in the velocity of a flow of air decreases its cross-sectional pressure" etc... Anyway, I've never heard about the Magnus effect and you could be right as well. However, we all agree that a draw is giving the longest possible shot with a lower trajectory than a fade for example. So it makes sense to use such a shot (a "punched drawing ball") while the wind is facing you (I never sait sideways). But you are right; the configuration of the fairway should comply with such a shot: Dogleg left or wide enough to accommodate for the right to left ball flight. Now, the only Ken Venturi effect I found doesn't relate to Trajectory Control but can keep you forever young Last edited by no_mind_golfer : 02-10-2009 at 02:16 PM. no_mind_golfer View Public Profile Send a private message to no_mind_golfer Find all posts by no_mind_golfer