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Diving depth? Vodkaman help!
27 replies to this topic
Posted 21 February 2008 - 12:28 AM
I think Vodkaman has it. If you cast a crankbait 100' it has a dive profile to max depth but soon after starts rising back to the boat. Most crankbaits stay at max depth for only 15-20 ft. When you troll the same bait, it has the same initial dive profile. But after reaching max depth, it doesn't get upward force applied to. In fact, the line angle that caused it to dive can keep getting more acute as you pay out more line. The bait keeps working deeper until upward line drag, bait bouyancy and lip resistance reach equilibrium. Lots of baits that cast to 15-18 ft will troll 30 or 35 ft if you let 150-250 ft of line out and you're using thin braided line or wire.
Posted 21 February 2008 - 01:37 AM
Ok thats where Im getting lost,if you read these books on their dive curve (casting) they dont show a bait hitting a peak and then starting the incline back to the surface they actually show it bottoming out(so to speak) once it hits it's maximum depth and running their for maybe 10-15'...then starting the curve to the surface. If we go by whats said shouldnt the dive curve continue downward reach the point where the line angle overcomes it and it returns to the surface? So if I cast a bait,then free spool while backing the boat up with the trolling motor and lay out say 150' of line I can get a deeper dive? Sorry:eek: I'm just trying to clear my head!
Posted 21 February 2008 - 01:39 AM
This is what happens when I read too much,but it is wintertime
Posted 21 February 2008 - 04:15 AM
I think a lot of it has to do with the angle between the rod tip and the line tie. Think about the cranks that run under the boat and turn up as they aproach the end of the retrieive.Just a thought.
Posted 21 February 2008 - 04:45 AM
VMAXX, the lure does bottom out and run horizontal. A depth is reached were the downward forces start to reduce as the line/lure angle increases, balance the upward forces of the line. At this point the lure swims horizontal. The lure is still trying to dive and is held up by the line.
There will be a minimum ammount of line required to get the lure close to its maximum depth. Letting more line out will not result in any significant increase in depth.
Posted 21 February 2008 - 07:05 AM
Ok that helps:)