Thru hull or shoot thru tranducer for a Glacier Bay

stockweiser · 03-27-2007, 12:28 AM

Hey guys,
We run a 2004 Glacier Bay Canyon Runner and are upgrading to a chartplotter. We have decide on the Raymarine C120 or the Garmin 4000 series. Unfortunately the Garmins aren't out yet. My question is does anyone run the thru hull or shoot thru transducers on their GB? If so how well do they work? We would like to leave the hull alone for ovious reasons but don't mind installing a thru hull if that is going to work best. We like the C120 sonar a lot but the "pictures" of the graffics on the Garmin(hard to tell without a unit to look at). Thanks for any input.

brew · 03-27-2007, 06:29 PM

I'm not familiar with your boat but just went through this same situation. Thru hull is concerning as you are cutting a hole in your boat and there could be issues with drag & it's effects on your boat's performance. For a shoot thru, I ran into the issue of having enough room to fit the unit, which I did not. so I ended up where I started, with a transom mount. All info that I got on the shoot thru's was very positive. Maybe this will help.

FinRazr · 03-27-2007, 06:51 PM

If your hull bottom is solid glass the shoot through is the way to go if your bottom is cored it's a pain in the butt.

Free Spirit · 03-27-2007, 10:00 PM

Just remember that you wiill lose up to 30% of your power shooting through the hull. So, a 1000 watt becomes 700. That may be a problem especially offshore.

stockweiser · 03-27-2007, 10:58 PM

Thanks for the info guys, every little bit helps!!

Reel Jule · 03-27-2007, 11:26 PM

I bought a new boat last year & was talked into a shoot-thru transducer. I lost about 30% of power & always loose the reading when I need it.
Don't be afraid to make holes in your hull . Find a good marine shop & let them do the install. They do it everyday On all sizes of boats.
Another thing to consider, with a thru the hull transducer you can get a temperature indicator. You can't with a shoot-thru.

PS I'm having a thru the hull installed next week. Also have you looked at the E-120? Alot more graphics than the c-120.

Good luck

FinRazr · 03-28-2007, 12:22 AM

Are you guy's sure about the 30% thing Furuno say's it's no were near that.I have a 1k shoot through and have had zero problems with it.I know there is quite an art to installing them correctly in an oil tank.

skinneej · 03-28-2007, 01:55 AM

I have a Canyon Runner myself and have the new Furuno 582 digital with a 600W X-Ducer transom mount. My understanding is that you are going to have a very hard time trying to find a place to mount a shoot through. So far, I have marked water up to 1500' deep, but haven't gone deeper than that. That was in 50KhZ mode.

Graceland · 03-28-2007, 08:41 AM

I can't give you a number on the power loss but I can tell you without a doubt you will see a loss in performance. I have run a Furuno 582 with a transom mount, shoot thru and thru hull. The thru hull outperforms the other 2 hands down.

03-27-2007, 12:28 AM	#1
stockweiser Sit down Shut up And fish Join Date: Aug 2005 Posts: 498 Credits: 1,433.5	Thru hull or shoot thru tranducer for a Glacier Bay Hey guys, We run a 2004 Glacier Bay Canyon Runner and are upgrading to a chartplotter. We have decide on the Raymarine C120 or the Garmin 4000 series. Unfortunately the Garmins aren't out yet. My question is does anyone run the thru hull or shoot thru transducers on their GB? If so how well do they work? We would like to leave the hull alone for ovious reasons but don't mind installing a thru hull if that is going to work best. We like the C120 sonar a lot but the "pictures" of the graffics on the Garmin(hard to tell without a unit to look at). Thanks for any input.

03-27-2007, 06:51 PM	#3
FinRazr Crab mustard is good Join Date: Aug 2006 Posts: 845 Credits: 1,350.9	If your hull bottom is solid glass the shoot through is the way to go if your bottom is cored it's a pain in the butt. __________________ DID YOU SAY YOU WANT SOME OF THIS ACTION!!

03-27-2007, 10:00 PM	#4
Free Spirit Hide- My Wifes Logged On Join Date: May 2005 Location: Egg Harbor Twp Posts: 147 Credits: 1,245.5 Occupation: charter captain	Just remember that you wiill lose up to 30% of your power shooting through the hull. So, a 1000 watt becomes 700. That may be a problem especially offshore. __________________ Capt. Steve Bent Fishing from the Delaware Bay to the canyons on a custom built, fully equipped 34' Downeast vessel gotumon@comcast.net Free Spirit Fishing Charter Fishing New Jersey Phone-609-926-9017 Call for rates and dates

03-27-2007, 11:26 PM	#6
Reel Jule Yep, your gonna need stitches Join Date: Dec 2006 Location: So.Md. & Manteo NC Posts: 94 Credits: 4,766.3	Transducers I bought a new boat last year & was talked into a shoot-thru transducer. I lost about 30% of power & always loose the reading when I need it. Don't be afraid to make holes in your hull . Find a good marine shop & let them do the install. They do it everyday On all sizes of boats. Another thing to consider, with a thru the hull transducer you can get a temperature indicator. You can't with a shoot-thru. PS I'm having a thru the hull installed next week. Also have you looked at the E-120? Alot more graphics than the c-120. Good luck

03-28-2007, 12:22 AM	#7
FinRazr Crab mustard is good Join Date: Aug 2006 Posts: 845 Credits: 1,350.9	Are you guy's sure about the 30% thing Furuno say's it's no were near that.I have a 1k shoot through and have had zero problems with it.I know there is quite an art to installing them correctly in an oil tank. __________________ DID YOU SAY YOU WANT SOME OF THIS ACTION!!

03-27-2007, 06:29 PM	#2
brew Weaky wacker Join Date: Oct 2006 Location: Ventnor, NJ Posts: 26 Credits: 1,230.1 Boat: Hydra Sports CC 2796, twin 225 Etecs Home Port: Margate, NJ Best Catch: white marlin @ AC Ridge summer '07 Occupation: slot machine sales	I'm not familiar with your boat but just went through this same situation. Thru hull is concerning as you are cutting a hole in your boat and there could be issues with drag & it's effects on your boat's performance. For a shoot thru, I ran into the issue of having enough room to fit the unit, which I did not. so I ended up where I started, with a transom mount. All info that I got on the shoot thru's was very positive. Maybe this will help.

03-27-2007, 10:58 PM	#5
stockweiser Sit down Shut up And fish Join Date: Aug 2005 Posts: 498 Credits: 1,433.5	Thanks for the info guys, every little bit helps!!

03-28-2007, 01:55 AM	#8
skinneej Banned Join Date: Mar 2007 Posts: 9 Credits: 220.0	I have a Canyon Runner myself and have the new Furuno 582 digital with a 600W X-Ducer transom mount. My understanding is that you are going to have a very hard time trying to find a place to mount a shoot through. So far, I have marked water up to 1500' deep, but haven't gone deeper than that. That was in 50KhZ mode.

03-28-2007, 08:41 AM	#9
Graceland Crab mustard is good Join Date: Feb 2005 Location: Newport News, Va Posts: 701 Credits: 1,388.3 Occupation: US Navy	I can't give you a number on the power loss but I can tell you without a doubt you will see a loss in performance. I have run a Furuno 582 with a transom mount, shoot thru and thru hull. The thru hull outperforms the other 2 hands down. __________________

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