Transducers - Page 2 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > General Interest Forums > Gear & Maintenance
 Not a Member? 
  #11  
Old 09-11-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 8 Times in 8 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Alec—

You can't generally install a through-the-hull transducer on a cored hull, unless you are planning on digging out all of the core material. If you do remove the inner fiberglass laminate and core material, you will need to replace it with a fairly substantial fiberglass patch. If you do this repair the wrong way, you risk letting water into the balsa core and delaminating the hull—which is a very expensive repair.

It would help if you said what kind of boat you had.. since the hull design will often affect the placement of the transducer. Forward of the keel, as close to the centerline of the boat as possible is probably a good location, but it will depend on your boat's specifics.
Quote:
Originally Posted by alecs123 View Post
Ok, since I posted this thread got the transducer.. It a Norcross Hawkeye depth sounder...
Has anyone worked with it? I'm planning on installing it this coming weekend.
I'm thinking on a thru-hull instalation, how ever my boat has a balsa cored hull. I willl "digg" into de ourter layar of fiber glass and then fix it to the boat.
What do you think about this setup?
The transducer also works as a transom mount, but I think it wouldn't work because my boat has a reverse angle in the transome, also I'm not sure if the transducer will be underwater all times.
My rudders is a spade type and I think with the movement, air bubbles will be created.
Any way I'll try different spots, but any information is appreciated.
Thanks
Alejandro
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
  #12  
Old 09-11-2007
alecs123's Avatar
Member
 
Join Date: Jul 2007
Location: Mexico DF
Posts: 75
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
alecs123 is on a distinguished road
type of boat

My boat is a Merit 25... balsa cored.
So you think it's better to install a thru hull transducer to avoid a possible mess with the core? To me is somehow the same, I mean, with a thur hull you make a hole in the boat, with a shoot thru, you only digg from the inside to the outer layer.
I was thinking to epoxy the transducer and then fill the gaps with polyester resin to make sure there are no ways into the balsa.
Perhaps it would be easier to try the transom mount and find a spot where the thing gets wet always (underwater)
Reply With Quote Share with Facebook
  #13  
Old 09-12-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 8 Times in 8 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
If you go with a through-hull type transducer, you really need to pot the hole for the transducer and the fastener holes. It is probably a bit less work than trying to install a through-the-hull, interior mount transducer in a balsa cored hull—since you would have to cut the inner laminate skin, remove the core and then grind out the laminate and build it back back to a thickness of solid fiberglass that is strong enough to withstand the forces on the hull, and then install the transducer. The extent of the repair to the hull's interior is probably a good deal more involved than the just potting a through-hull and fastener holes.

I'm not a big fan of transom mount transducers, since they still require a hole through the hull for the wiring, or a really long wiring run, and are far more vulnerable to damage. Also, having a transom mounted transducer means that you'll have no warning of sudden shoaling and if you're not paying attention, have a much greater chance of going aground. With it mounted a bit forward in the hull, you can often get a bit of warning and avoid a grounding by changing course or backing.

Quote:
Originally Posted by alecs123 View Post
My boat is a Merit 25... balsa cored.
So you think it's better to install a thru hull transducer to avoid a possible mess with the core? To me is somehow the same, I mean, with a thur hull you make a hole in the boat, with a shoot thru, you only digg from the inside to the outer layer.
I was thinking to epoxy the transducer and then fill the gaps with polyester resin to make sure there are no ways into the balsa.
Perhaps it would be easier to try the transom mount and find a spot where the thing gets wet always (underwater)
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Transducers (for depth sounders) Spencer28 Gear & Maintenance 1 08-01-2007 06:12 AM
Wated: Old Transducers PUC Boat Review and Purchase Forum 1 07-19-2002 11:37 AM
Need old Transducers PUC Gear & Maintenance 0 05-10-2002 01:09 PM
Non-NMEA Transducers PUC Gear & Maintenance 3 05-08-2002 07:30 AM
Hull transducers BenDaniels General Discussion (sailing related) 0 02-22-2001 09:12 AM


All times are GMT -4. The time now is 10:15 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012