Does anyone have a chart or a math calculation to show the depth of your cannonball with various degrees of swayback? I've heard of the Osprey Computrac but I can't find it.
Ball weight, cone angle, trolling speed, deeper on the graph...The only thing I can do is slow my speed! All of the things that come to mind!You can also get approximate depths by slowing your speed to keep your balls in the depth finder cone angle and they will show up on you graph. However remember that your balls when at most trolling speeds (depending on ball weight, current and speed) will be on the outside of your cone angle and show up as deeper on your graph than they actually are running. The difference will once again depend on the variables. The difference could be a foot or two or more.
Roger23 I don't believe that calculator will work because it isn't a right angle anymore; it's a polygon. at least I think it is. so if there's a calculator that you can plug in the arc, the distance down and the hyptenuese to get the fourth leg, ie., the distance from the ball to the base, that'd be the one to use. I think I found it but they were talking about sines and cosines and I was lost right about there.
Mike, heres a link for any professional questions you would ever need about downrigger questions. There is a ton of info...you might want to join the site.Does anyone have a chart or a math calculation to show the depth of your cannonball with various degrees of swayback? I've heard of the Osprey Computrac but I can't find it.
i just watch mine on the lowrance. it will be a straight line all the way across the screen. you can even see it when it comes up. like toxic said, set the screen to arches not fish symbols. fish symbols will show you a line of little fishes at one depth. found this out the hard way