Reply
 
Thread Tools Display Modes
 
Old 05-17-2011, 09:58 PM   #21
Veteran Member
 
Just Bob's Avatar
 
City: Oriental, NC
Country: USA
Vessel Name: Liberdade
Vessel Model: Ocean Alexander 54
Join Date: Apr 2011
Posts: 78
RE: Depth Sounder Transducers

Now this is very interesting, I wouldn't have thought that.* I have*few places I could put it outside the ER - thank you this is a very good thought.*

*

My current through-hull has the temp prob built in, I wounder if these shoot-throughs do as well or will I have a separate prob for that??* I'll have to investigate that with Garmin/Airmar.

*

Thank you again!
__________________
Advertisement

Just Bob is offline   Reply With Quote
Old 05-18-2011, 04:18 AM   #22
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,512
RE: Depth Sounder Transducers

Is the water temp to plan on the survival time , if someone goes overboard with out a survival suit on?
__________________

FF is offline   Reply With Quote
Old 05-18-2011, 05:46 AM   #23
Veteran Member
 
Just Bob's Avatar
 
City: Oriental, NC
Country: USA
Vessel Name: Liberdade
Vessel Model: Ocean Alexander 54
Join Date: Apr 2011
Posts: 78
RE: Depth Sounder Transducers

No it's to determine if I want a cup of hot chocolate or an iced tea while floating on*my blow up raft.

*

Seriously though, it's why I said*I think I could live without it at the helm.* If I can get a reasonably accurate measure*through the methods described above than great.* If not it's easily attainable by other means.
Just Bob is offline   Reply With Quote
Old 05-20-2011, 03:27 AM   #24
Guru
 
Tidahapah's Avatar
 
City: Mooloolaba
Country: Australia
Vessel Name: Tidahapah
Vessel Model: Bert Ellis Timber motor cruiser
Join Date: Oct 2007
Posts: 1,779
RE: Depth Sounder Transducers

Water temp is a serious matter if you are a fisherman.
One is allways looking for thermoclines and currents. The sea temp will be your friend and fill your freezer.
Tidahapah is offline   Reply With Quote
Old 05-20-2011, 04:22 AM   #25
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,512
RE: Depth Sounder Transducers

Water temp is a serious matter if you are a fisherman.

And if your not a fish guy, having the water temperature gets you???
FF is offline   Reply With Quote
Old 05-20-2011, 07:46 AM   #26
TF Site Team
 
Larry M's Avatar
 
City: JAX, FL
Country: USA
Vessel Name: Hobo
Vessel Model: Krogen 42-120
Join Date: Nov 2008
Posts: 5,719
RE: Depth Sounder Transducers

Quote:
FF wrote:
Water temp is a serious matter if you are a fisherman.

And if your not a fish guy, having the water temperature gets you???
*I can see your not a fan of water temp FF.* LOL

When you*buy*a speed transducer, temperature is usually included,*so why not.* On our last boat we had two separate depth finders that also had speed and temp.* One set of transducers were*located in the engine room.* The paddle wheel on the speed transducer was difficult to clean so I just pulled it*and put the plug in it's place.* I now had an engine room temperature sensor.* What I found was that if I did not*run the engine room blower, the engine room temperature would rise as much as 20 degrees when we were in the tropics.* Since our alternators charging efficiency and life span is affected by temperature, we tried to run the blower all the time.* It was easy to see when the blower was on or off.* For us the temperature sensor is just another tool.*
Larry M is offline   Reply With Quote
Old 05-21-2011, 04:49 AM   #27
Guru
 
Tidahapah's Avatar
 
City: Mooloolaba
Country: Australia
Vessel Name: Tidahapah
Vessel Model: Bert Ellis Timber motor cruiser
Join Date: Oct 2007
Posts: 1,779
RE: Depth Sounder Transducers

FF the water temp also indicates the currents and this is what we chase on when we are at sea on tankers etc.
Knowing the temp gives you the current direction and weather you are in the right current for your diorection , it is all about fuel saving.
Tidahapah is offline   Reply With Quote
Old 05-21-2011, 08:52 AM   #28
Guru
 
Anode's Avatar


 
City: Missourah
Country: USA
Vessel Name: M/V Scout
Vessel Model: Sundowner Tug 30'
Join Date: Jul 2010
Posts: 645
Depth Sounder Transducers

Bingo! Benn nailed it.

Here's a recent photo and comment from a sailboat delivery I did this spring from Ft. Lauderdale, FL to Barnegat, NJ. Find the strongest currents by the water temps and ride them north.

"Hello Gulf Stream. Water temps in ICW and along the Florida coast were in the lower 70's. Once the strongest part of the stream we saw water temps of 86 F plus. I was on watch when we rounded Hatteras and left the stream. Water temps went from 81 to 56 F in 3 miles."


-- Edited by Anode on Saturday 21st of May 2011 08:53:45 AM
Attached Thumbnails
Click image for larger version

Name:	p3180020 (small).jpg
Views:	33
Size:	35.8 KB
ID:	6067  
Anode is offline   Reply With Quote
Old 05-21-2011, 12:05 PM   #29
Veteran Member
 
millennium's Avatar
 
City: St Augustine
Country: usa
Vessel Model: Mainship390
Join Date: May 2011
Posts: 89
Depth Sounder Transducers

With speed thru water, gps speed, heading, and course over groung my Raymarine e displays will figure set and drift.

And add the wind transducer it shows ground wind.

For me all interesting and useful things on a long passage.

I would recommend the thru hull(the one you have to put a hole in the hull for) with paddlewheel and temp sensor.

If you want real accuracy Airmar makes a ultrasonic speed sensor, no moving parts to foul.


-- Edited by millennium on Saturday 21st of May 2011 12:08:22 PM
Attached Thumbnails
Click image for larger version

Name:	img_2819.jpg
Views:	29
Size:	94.3 KB
ID:	6068  
millennium is offline   Reply With Quote
Old 05-21-2011, 12:45 PM   #30
Senior Member
 
capt jerry's Avatar
 
Join Date: Oct 2007
Posts: 321
RE: Depth Sounder Transducers

a paddle wheel only give you the speed over the water, not over the ground.if you are stemming the current you have to alow for it?
capt jerry is offline   Reply With Quote
Old 05-21-2011, 01:40 PM   #31
Guru
 
Codger2's Avatar
 
City: San Diego
Country: US
Vessel Name: "Sandpiper"
Vessel Model: 2006 42' Ocean Alexander Sedan
Join Date: Oct 2007
Posts: 5,420
Depth Sounder Transducers

Quote:
capt jerry wrote:
a paddle wheel only give you the speed over the water, not over the ground.
******** True enough, but if you know your speed through the water, (ie) STW = 7 knots

******** and SOG =9 knots, you might hear yourself exclaim: "WOW! We're getting a 2

******* knot push!"** Of course the opposite is true too! "S--t, we have a 2 knot current on

******* the bow." (certainly not necessary for the operation of the boat but "nice to have!)

*

******* I'd opt for at least one thru hull. (With STW & temp capability.) Especially on a boat

****** that is commissioned in 2011/2012.


-- Edited by SeaHorse II on Saturday 21st of May 2011 01:47:48 PM
Codger2 is offline   Reply With Quote
Old 05-21-2011, 01:43 PM   #32
Veteran Member
 
Just Bob's Avatar
 
City: Oriental, NC
Country: USA
Vessel Name: Liberdade
Vessel Model: Ocean Alexander 54
Join Date: Apr 2011
Posts: 78
Depth Sounder Transducers

Thank you Seahorse, what is the relevance of when the boat is commissioned?

Your set up is what my original plans were to do, but if I can get accurate temp another way, it may be worth it not to have the through hull.



All good thoughts. The relevance of some a function of what type of boating one does. I have to admit the current issue did not cross my mind. But we have not done that much ocean cruising, but that is what this boat is being bought to do. If the previous comments are correct that I can get reasonably accurate temp readings through the hull, that still seems to be the best route. While appreciating the suggestion of a speed wheel, I've had enough experience with those fouling to not want one. The speed over ground the GPS gives me is adequate.


Thank you all, again I've learned something useful from your collective experience!

-- Edited by Just Bob on Saturday 21st of May 2011 01:44:08 PM

-- Edited by Just Bob on Saturday 21st of May 2011 01:49:00 PM

-- Edited by Just Bob on Saturday 21st of May 2011 01:49:33 PM
__________________

Just Bob is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Backup Depth Sounder dekedekay Electrical and Electronics & Navigation 16 12-01-2011 10:34 AM
Raymarine - DSM 30 depth sounder loosing bottom. zappi Electrical and Electronics & Navigation 2 08-04-2011 10:47 AM
Thru-Hull Transducers Tom.B Electrical and Electronics & Navigation 16 11-14-2010 01:25 PM
Fish Finder/Depth Sounder Tom.B Electrical and Electronics & Navigation 7 01-04-2010 12:21 PM
Matching old transducer with new depth sounder Keith Electrical and Electronics & Navigation 3 01-06-2008 11:26 AM




All times are GMT -5. The time now is 02:58 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012