Re: Help with transom mount transducer placement
Mount in so that the bottom of the 'ducer is 1/8" below the hull, with a slight angle forward. I recommend just inside of the inner hard chine, so that at higher speeds it will still get a reading.
Note, however, that at speeds above 35 mph, even the bottom hard chine can catch air. When my Humminbird Matrix does that, I don't get a good reading again until I slow down below about 22-23 mph.
A shoot-thru hull transducer avoids that issue, but then you gotta put in faring blocks to get it vertical and all kinds of other stuff.
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.
Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!
Currently without a SeaCraft 
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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