Fish Finder Sonar

[StingRob]

The way I see it, shipwreck hunting definitely requires luck, knowledge and of course good GPS/sonar. Fish-finders are designed for finding fish only and they have low range action. Some combo units, like the one I’ve seen (M25/M37) have a pretty good transducer with 4 even 6 beams which covers a good area all around the boat. It also provides an extremely wide area of coverage, starts with two 450 455 KHz beams uninterrupted side to side and covers 160 ft. which is not bad for a fish finder.
This would reveal fish and structure to the left and right of the boat as well as bottom composition in case the wreck rests in silt or sand. The best thing to my knowledge is the “Side beam view” which gives a more readable image of the bottom.

StingRob

 

[Tom R]

Here's a sample of what you see on sidescan

 

[d33ps1x]

We also have a Interphase fwd looking sonar mounted center line on the bow.
Cliff

I always wondered how you managed not to run yourself aground so far.

 

[StingRob]

Definitely a clear image where you can distinguish small or large structures… comparing with a fish finder which shows leafs, fish, and a bunch of shadows where you have to guess a wreck.
I totally agree sonar is much, much better comparing with a regular fish-finder.

StingRob

Here's a sample of what you see on sidescan

 

[videorov]

They show real good detail of things on the bottom. Almost like a photo in B&W.

 

[Rollie]

 

[Rollie]

Hi

Echo Pilot makes a "FLS" Forward looking sonar unit called the wreckfinder and retailes for about $1300 Canadian it has 150m range ahead and 75m down 150m 3D sidescan display. This is your best bang for your buck.

Good Luck

Rollie

 

[videorov]

Hi

Echo Pilot makes a "FLS" Forward looking sonar unit called the wreckfinder and retailes for about $1300 Canadian it has 150m range ahead and 75m down 150m 3D sidescan display. This is your best bang for your buck.

Good Luck

Rollie

Check out the pictures at the Hummingbird site of what their sidescan unitis will do
they sell for around $1500