Trolling Angles News and Articles

The first question often asked about Trolling Angles is “is it accurate?”. I have very little doubt about the theory of the physics of the method and the math used in the Trolling Angles app. Years of software development experience tells me not to deny the possibility of errors in the coding implementation.  However, we…

There is an aphorism in the engineering world: “In theory, there is no difference between theory and practice; but in practice, there is.“ It is fairly well accepted in the “science” of trolling lures that The Trolling Angles web pages and FAQ explain why this is so. One can examine the drag and lift equations…

Here are some thoughts on the geometry of downrigger lines and 2-D sonar displays. This example is based on the data from the previous post “Trolling Angles with Downriggers“. Transponders The transponder is below the surface, in this example by 2 feet. The green area shows the effective span of the transponder’s signal cone. A…

When trolling with downriggers, compared to long-line trolling, you may think you understand how deep your lure is, but you may be wrong. The rigger has a line counter, and the line is somewhat vertical. The trolling rigs behind the cannonball may be short enough or neutral enough that one does not need to take…

Claim The angle of a trolled fishing line at a given point, measured at the surface, does not change as more line is deployed and the rig is lowered into the water. Forces The forces acting on a trolled line are characterized as weight, hydrodynamic drag and hydrodynamic lift of both the terminal tackle and…