Degree of Tilt for Thru-Hull transducer?

[John3325]

Good evening all,

Ordering a new electronics package for my 23 Seacraft IB. I am going with the Garmin 741xs or 742xs, and will be getting the B150 thru-hull with it.

Question is, what degree and what location should I be getting and doing? The transducer comes in 0, 12, and 20 degree configurations. The thru-hull will likely be located in the bilge where accessible towards the inside of the boat, so I think that means I would want the 20 degree configuration?

Any help is greatly appreciated!

[DonV]

I have the b-164 at 20 degrees

[kmoose]

Don is spot on! Go with the 742

[John3325]

Thanks guys,

I am leaning towards the 742xs. I thought I'd need the 20 degrees thanks for the confirmation.

[John3325]

Does anyone have any experience with the GT23M-TH? This is the fairing block style thru-hull which also gives you the ClearVu (aka DownVu) sonar scanning.

Is it worth the extra $200 or so get the down scanning capabilities? Instead of just have the one hole with the "mushroom" style thru-hull, you now have to deal with the fairing block so is it worth it?

I found this thread over on THT outlining the difference, but do you gain much more than just having the regular sonar?: https://www.thehulltruth.com/marine-...nvu-chirp.html

[John3325]

Ordered the 742xs and the B150 yesterday. Thanks for all the help guys!

[caboman22]

I'm looking to install the Garmin 7610 XSV / 7612 XSV with airmar B75 thru hull 20 degree tilted element with chirp.

[kmoose]

The tilt you want is 20 degrees if you located it just starboard of the centerline which is what I recommend. Closest to the stern would be my preference. Here is a pic showing the location of my 264n. I understand most don't have the access I do to their bilge area but this has been a flawless location for a thru hull tilted ducer.

[John3325]

Thanks guys for the info. I wish I had that kind of access, problem with the IB is bilge area is limited close to centerline aft due to the running gear. Think it's going to end up under the transmission as close to the centerline as I can get it.

The 840xs is a good unit, they are on sale over on THT for $425 shipped through semperfifishing. Guys name is Gil, I have ordered two so far. (One for seacraft and one for the tower of the Luhrs).

[dginge]

Guys
Are you sure it's that much deadrise that far aft and just off the centerline? I'm starting to question my transducer choice if that's the case!?!!