Choice Of Depth Sounder, And Location of Transducer

thataway · Posted: Wed Feb 24, 2021 10:46 am Post subject:

Or you can make your own "Stern Saver" with a block of High Density Polyethelene, (Starboard, or Dense PVC lumber).

Undercut the back of the block of HDPE with a small dovetail bit (I use a Dremel too, with its mini router bit), and glue it on with G flex epoxy, after a quick flame hardening. Sand off any bottom paint and get a good rough gel coat surface. Use hot glue to hold the HDPE in place until the G Flex glue dries.

Variations of this include drilling holes and then using the dove tail bit to undercut.

There other adhesives which work directly on the Starboard--mostly with flame heating: Lord 7542-AB, or 3M's Scotch-Weld DP-8005, or Chem-Set™ 6105 Polyolefin Bonder.

This allows you to move the screw holes, or mount additional transducers.

ggray · Posted: Wed Feb 24, 2021 7:25 pm Post subject:

Thanks!
I have 5 holes to fill in now. Fortunately the core is dry behind each.

starcrafttom · Posted: Thu Feb 25, 2021 3:54 pm Post subject:

Yes on the star board. I just cut a lace pattern of groves in the star board that will touch the hull and use 5200. let it set up for about 5 days. works great but there are other epoxys that work. I just lean a pole or something with a lot of weight pushing it against the hull.

AS for placement It is best to place the transducer on the right side of the motor ( as you look at it from behind the boat). less prop watch. as close to center as you can with out the motor touching in a turn. but any where for there to a foot of the side should work in a cdory. In boats with v hulls you have to make sure that the transducer is not out of the water when boat is on plane. Hence close to center. There are a lot of the bass boat and flats boat guys that glue it under the boat on the hull.

dont know what plotter you got but the new ones are cheap and a lot better then just 3 years ago. Most have bluetooth so you can use a ipad , or phone or such as a second screen. you can get a none bluetooth unit for about $300-400. Hell I have a c80 with all the transducers and gps needed sitting in my garage doing nothing. its a older unit works well . make me an offer.