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Stern Saver Transom Mounting System

Old 07-24-2013, 06:46 PM
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Default Stern Saver Transom Mounting System

Since installing my Simrad NSS8/TM260 transducer early in 2012 I wanted to clean up the transducer install. The issue was my Boston Whaler. I initially cut a piece of 1.5 inch thick starboard so that I could bond it to the transom face so as to not to have to embed screws in the transom itself. I did so but it looked terrible even though it was functional. Note ..... I had to use some screws to ensure it's integrity on the transom.

As you can see my attempt to cut my starboard block symmetrically was less than acceptable ..... to be bluntly honest it sucked.





Scott Johnson the owner of Stern Saver graciously came to my rescue. He offered to design and manufacturer a Stern Save System that would be suitable for use with my Airmar TM260 transducer.In other words the bonding agent would have to be strong enough to hold the starboard Stern Save to my transom with my TM 260 attached to it in the open ocean environment.

True to his word, my newly designed Stern Save arrived last Saturday. I took me a couple of days to get everything ready to install it. I had some patch and glass work I needed to do on my transom to get it ready for my Stern Saver. Scotts machinist did a terrific job cutting and shaping the new larger Stern Saver.

Here's pictures from the install. We used black because I will be adding bottom paint over the winter.





You can see some of the unfinished glass work in this picture.








The TM260 is not aligned in this picture just started the process ......





TM260 installed ......













Thanks to Scott and his team for a job well done!

Last edited by bluewaterpirate; 07-24-2013 at 07:29 PM.
Old 07-24-2013, 07:24 PM
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I ran the boat earlier this evening and everything was solid. I ran 45 mph for 20 minutes & jumped some wakes and the Stern Save worked as Scott and I thought it would. He really did a bang up job with this.

Here's the link to his website.

http://www.sternsaver.com

As you can see in the post above I have two Stern Savers on my transom. The really great thing about this system is you can easily tweak your transducers position in relation to the bottom of the boat and water flow across it.

Thanks again to Scott!
Old 07-25-2013, 05:11 AM
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So did you secure it with 1 1/2" screws or the 3"ers that came from Airmar. Went through the same process (sternsaver/tm 265) but used two 3"ers that came with the transducer and a small 3/4"er in the middle hole of the bracket. Was worried that it might pull off at WOT. Mine is screwed through a transom bracket rather than the true transom and had to move it down a few times to get good water flow. Emailed SternSaver about a custom job but never heard from them so went with the standard size but it was a tight fit.
Old 07-25-2013, 05:21 AM
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I used the 1.5" screws that came with the TM260. The block I used is a prototype. Based on the performance Scott will determine whether to go forward with offering this Stern Saver to boaters with larger transducers. This Stern Saver has 12 pre drilled cavities that are filled with the bonding agent used to secure it to the transom face.

As a sidebar to this discussion I've used the smaller Stern Saver when doing electronic installs where there is no based to secure items to. Works great in this area.
Old 07-25-2013, 10:40 AM
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Tom,
Scott called me the other day telling me about your project.....I was glad to see the outcome..good job!

I like the fact the Tm260 is not a bit farther off the transom.
Old 07-25-2013, 12:05 PM
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Looks awesome Tom.

Why are you bottom painting?
Old 07-25-2013, 12:34 PM
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Tom, that looks great on your transom! Thank you for your willingness to try it out and all the kind words! I hope to add this beast of a block to our product line to prevent people from having to drill five holes to transom mount their TM260 and TM265 transducers.

Did you notice any improvements in your readings as a result of the 1.5" offset this giant transducer mounting block provides? How fast were able to go and still hold bottom?
Old 07-25-2013, 12:47 PM
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Originally Posted by Scoutexpress View Post
Emailed SternSaver about a custom job but never heard from them so went with the standard size but it was a tight fit.
I am sorry to hear that...I checked our email inbox just to see if it was overlooked, but I could not find anything. Not sure what happened there and I apologize for that. Did the standard size work out ok? I am interested to see your install.
Old 07-25-2013, 04:55 PM
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Got everything dialed in this afternoon ...... ran little then back to the shallows to make some adjustments. That's the nice thing about Stern Saver you can make adjustments any time without worrying about re sealing the screw holes.

Had to use one wedge to change the transducer angle up a few degrees.













Old 07-25-2013, 05:09 PM
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Yeah, yeah, yeah and a couple of yaddi addi oddas to boot. Starboard and West System Epoxy works just fine. You would be lucky not to have to grind it off after installation.
Old 07-25-2013, 06:31 PM
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I'm really impressed with my 585 and TM260. It holds bottom at all speeds and gets nice returns like these. I have seen better returns than this but these are a couple when I had my camera ready. I'm looking at the top 200 feet... probably 100fa deep.
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Old 07-26-2013, 08:40 AM
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Tom,

Good looking install!

I've owned a boat continuously for 35 years but am amazed at how often I learn something so simple as to make me ashamed not to have figured it out long ago. I refer to Tom's photo of the wood scrap taped to the xducer to allow proper alignment of the xducer to the hull bottom. In the past I've always tried to tape a yard stick to the hull bottom which is not always a wonderful method.

So, Tom, thanks from an old dog for yet another lesson.
Old 07-26-2013, 09:22 AM
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Scott,
My email would have been sent May or June 2012, no big deal as I ordered 2 standard sized ones from BOE for my previous sonar with 2 transducers. Although tight, that big 1KW fits and works to 40mph or so. Will try to post a photo but have never done it on this website, so will send it to your website email if it fails here. Good product but the thicker block for longer screws would make it even better.
Old 07-26-2013, 10:07 AM
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Polish enginuity Butch.
Old 07-26-2013, 10:11 AM
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Think I got it.
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Old 07-26-2013, 04:20 PM
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I just installed a Stern Saver and I love it!
Old 07-26-2013, 04:41 PM
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Here's the bolt pattern ......

Old 08-01-2013, 05:56 PM
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Transom mounted transducer size comparison.


Airmar TM150m (CHIRP) -vs- TM260


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Airmar TM150m (CHIRP) -vs- P66


Old 08-05-2013, 10:15 AM
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Anybody have an advice on my TM150 placement? I keep losing bottom over 10mph or so. Any help would be appreciated!
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Old 08-05-2013, 10:17 AM
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Different picture angle
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