105 views and only one reply, lets try this again

[Trout Bum]

Riveted hulls and H'bird fish finding ability on plane

There must be more of you running Birds on riveted hulls! Do any of you get good results at planning speeds?

I have my second riveted hull Lund and am running a Humminbird 958 HD at the helm.

I have the same problem with this boat as with my last. It will not show fish arches when on plane, at any planning speed. It never looses the bottom signal but to see arches you have to be going slower than 2000 rpm.

I have moved the transducer left. right, up , down, changed the angle, rerouted the cable, installed a ring ferrite, etc. and nothing makes any difference.

Years ago with Lowrance on my Ranger, I could get arches even at high speeds. Although it had a thru hull transducer.

Does anyone get good fish arches with riveted hulls at planning speeds?

I don't want to waste any more time if it's not doable.

Thank

[Cray]

The only time I made it work was running a skimmer transducer set almost a inch below the bottom. Not a good deal if you fish in brushy or stumpy waters. This was with Lowrance units. Never tried it with a Bird. Bird ducer just looks like it would not be good for getting a good signal at speed because of the shape.

[brettw]

no comment

[thudpucker]

I don't think the Rivets have anything to do with your recption. Unless the 'intercapacity' of all those Rivets is talking to your transducer and zeroing out the signal from the Bottom.
Aint that a fancy retort? Only a Yankee....

Bubbles or some other distortion of the water flowing over the Transducer is most likely the culprit.
You might prove that to yourself by fastening the Transducer to a "fixture" and making sure it's running in clear water.
Be careful there, you don't want the Transducer to be wandering, and of course the 'fixtur' might come up and whack you.