Thru-hull Transducer on Aluminum Boat?

[Great_Laker]

Anyone run a thru-hull transducer in an aluminum boat? I’d like to be able to scan at 20-25 mph and my current Lowrance 3-1 transducer isn’t capable of doing that off the transom. I have it as close to the engine and as low as it can go without interference from the prop wash. I run a 20’ center console with Lowrance electronics. Looking for some advice.

[lost a lure]

Use Plastic or Stainless Steel in an aluminum boat. Isolate the SS from the hull.

[Andre wallyandre]

I’m running a 3-1 on the transom of my Crestliner and my top speed is 44mph and never loose bottom.

Take a pic of your transducer installation from different angles and also the bottom rear of your hull.

[J.D.]

been running an Airmar P66 transom mount duel frequency transducer on my 17 ft. aluminum for years... read bottom clearly at 36mph. out to 200.

 

https://www.airmar.com/Product/P66

Edited March 26 by J.D.