Lowrance Trippleshot Transducer Placement

[N8B]

Have a 94 Sylvan Seatroller.  Have Garmin Echo and new Lowrance Hook2 Trippleshot fish finders.  Have mounted both transducers in a variety of locations but both keep losing bottom on plane.  From what I've read, I'm guessing the aluminum riveted hull is causing too much turbulence in the water at high speeds.  If anyone has suggestions on proper mounting of transducers for these types of hulls I'd appreciate it.  Thought it was the fish finder but identical models on different boats read depths to 100 plus feet on plane.  I've moved my ducers up and down the transom and adjusted the angle with no success.  Any suggestions would be greatly appreciated.  

[Surface Tension]

 The front of the ducer should be below the hull. If you have a V-hull get the outside edge an 1/8th" below. Use a straight edge on the hull to set that.   Angle: The rear of the ducer should be lower then the front.  Tripleshot has a long ducer so go 1/4" lower.   The bottom of the ducer should be parallel to the boats gunwales.  Not much you can do about rivets but and don't mount the ducer in fount of a rib.  I tend to mount ducers on the starboard side to eliminate prop turbulence. If you have a steep V-hull, the optimal mounting location is less.  You want to stay away of prop wash while keeping the ducer's face on good contact with the water.  A mounting board is a good idea.  In the boats life it'll have upgraded electronics, un-mounting and mounting new ducers. but also if you you have to change the mount location to get the ducer tuned in.

 

[Cliff Wagenbach]

The Triple Shot transducer does not read well at high speeds! It is a slow speed transducer, 6 mph or slower is the speed that it works best at. It also does not play well with other transducers on the boat! Lots of interference problems!

I had to shut the depth finder mode off on my HDS model before my Hook 7 would read right even though I only used the HDS as a GPS! No problems after I did that.

Cliff