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Old 30-04-2016, 17:23   #1
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Depth Finder Forwardscan worth it?

I have an ancient depthfinder on my 41 Gulfstar ketch, it works, but I would like to replace it with a good bottom scanner / fishfinder. I have been reading about the Lowrance Forwardscan transducer that can be added to one of their systems.

I have read in the past that some depth finders can be mounted in a fluid-filled chamber built to the inside of the hull.

So my questions revolve around these two concepts...

First, has anyone used a forward looking sonar on a sailboat and is it effective? If so please provide brand and other info that would help.

Second, any thoughts/experience/advice with the concept of building a fluid-filled chamber in which to mount the transducer instead of a through-hull?

Thanks so much.
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Old 01-05-2016, 01:08   #2
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Join Date: Nov 2011
Location: aboard, cruising in Australia
Boat: Sayer 46' Solent rig sloop
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Re: Depth Finder Forwardscan worth it?

Hi, Wind Junkie, yes forward looking depth sounders can do you a world of good, especially where the water is murky and the charts are poor. If you sail only in well charted waters, you can get by without one, just by paying close attention. With that said, however, we had a Probe on our 36 footer, where it had saved our bacon in the Solomons; therefore, Jim ordered one for this boat, as well, before we even owned it.

Sorry, I don't know about the other issue you mentioned.

Who scorns the calm has forgotten the storm.
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Old 01-05-2016, 02:06   #3
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Re: Depth Finder Forwardscan worth it?

I just fitted a Humminbird FishFinder in my boat (GRP).
It came with a heck tranducer in the box. I placed the transducer inside the hull in a good pool of Sikaflex and it works very well. (Besides of course the water temperature sensor).

This far I have been in up to 25 meters of water, and no problems whatsoever. I placed the transducer near the centerline, and I would guess that there is no core material there, but rather thick (GRP).
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