I use the sonar log function a bit on my Lowrances and contribute to some social maps… usually it looks like spaghetti getting thrown around my fishing spots. I saw this looking at Mille Lacs and can’t believe how much someone must really like driving their boat in a straight line. I don’t think I could drive that orderly if I tried?
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That takes some skill. No matter how much I try to go perfectly straight the boat always wants to go one way or another and the wind and waves dont help.
Wonder if they’re using some type of autopilot? Some of those lines in that first pic are almost 2 miles long!
I’m wondering if they are scanning the lake for their mapping software…
It could be lake mapping or some other survey sonar use where the GPS is auto-piloting the boat.
Also, they may have their GPS unit set to only drop a track waypoint every 50 or 100 yards. The GPS unit then interpolates the track between the two points resulting in an artificially straight track.
Grouse
Most likely an autopilot system. It’s amazing how well an autopilot system integrated with the main motor will keep you tracking in a straight line.
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