Squirt Transom Knee

Outboard designs up to 14'

Moderator: ttownshaw

User avatar
GiveATry
Posts: 15
Joined: Mon Mar 09, 2015 11:58 am
Location: Pittsboro, NC

Squirt Transom Knee

Postby GiveATry » Thu Aug 06, 2015 3:56 pm

Looking for opinions on adding additional transom knees to the squirt. I want to make sure the transom is rugged enough to handle motor stress and realize the plans call for one central knee running from keel to transom. Has anyone added more knees to the transom? Does it make sense to do so?

Thanks!

User avatar
Roberta
Posts: 5946
Joined: Tue Jul 31, 2007 5:23 pm
Location: East Troy, Wisconsin

Re: Squirt Transom Knee

Postby Roberta » Thu Aug 06, 2015 4:04 pm

Some extra knees on the battens won't hurt. Also, a motor well will add strength.

Roberta
Roberta "Queen of the Boat Builders"
Built Zip "Oliver IV", Super Spartan "Jimmy 70", and Torpedo "The Glen L".

User avatar
GiveATry
Posts: 15
Joined: Mon Mar 09, 2015 11:58 am
Location: Pittsboro, NC

Re: Squirt Transom Knee

Postby GiveATry » Fri Aug 07, 2015 10:46 am

Roberta, thanks for the response. I am thinking I will do a knee from keel to transom. Then, knees from the innermost battens to the transom.
To make sure that I understand...installing a knee requires a pair of bolts through the transom and through the batten or keel, right?

User avatar
BarnacleMike
Posts: 822
Joined: Wed Sep 21, 2011 7:47 am
Location: North Georgia / Chattanooga Area
Contact:

Re: Squirt Transom Knee

Postby BarnacleMike » Fri Aug 07, 2015 11:45 am

There are different ways you can build transom knees. You can through-bolt them, as you mentioned. Depending on the width of the batten, you can attach them to blocking. You can build knees to the same width as the battens, then add additional pieces to the outside of the knees that extend over the sides of the battens (and to similar pieces on the transom). The Utility uses two transom knees that attach to the sides of the keel, then to blocking on top of the motor board.

Triple transom knees is how William Jackson designed the transom support for his "Ace." I'm considering something similar for my Zip, just for the simplicity of it. The counterbalance is that I like the aesthetics of the motor well. I haven't decided just yet.
-Michael

Built Utility "Perseverance" — completed Aug 2016
Currently building a Zip
My Boatbuilding Blog: http://barnaclemikeboats.blogspot.com/
My Website of Boat Photos: https://michaelsmaddox.wordpress.com

User avatar
Roberta
Posts: 5946
Joined: Tue Jul 31, 2007 5:23 pm
Location: East Troy, Wisconsin

Re: Squirt Transom Knee

Postby Roberta » Fri Aug 07, 2015 2:56 pm

Here is a picture of the outer transom knees I added to my Zip build. Also in the picture is a "cantelever" support for the motor well. The "secondary knees" are smaller than the primary knee on the keel and can be glued and screwed into place. Number 10 screws will suffice.

Roberta :D
Attachments
Bumpers 004.jpg
Roberta "Queen of the Boat Builders"
Built Zip "Oliver IV", Super Spartan "Jimmy 70", and Torpedo "The Glen L".

User avatar
GiveATry
Posts: 15
Joined: Mon Mar 09, 2015 11:58 am
Location: Pittsboro, NC

Re: Squirt Transom Knee

Postby GiveATry » Sun Aug 09, 2015 7:30 pm

I like the idea of additional transom knees without having to put holes through the transom. I've got some ideas now on how to move forward with this. Thank you for taking the time to share your knowledge.

Hercdrvr
Posts: 365
Joined: Mon May 11, 2015 12:52 pm
Location: McKinney TX

Re: Squirt Transom Knee

Postby Hercdrvr » Wed Aug 12, 2015 11:23 am

I built my Squirt with 1 transom knee per the plans, and a good stout motor well. Hung a 150 lb 33 hp motor on it. Transom is fine so far. However, it would be soooo easy to add a couple transom to baton knees. If you get the perfect and a good fit, I Might simply clamp and epoxy them in place with no hardware. With good surface contact, epoxy has never failed on me, the wood gives up before the epoxy bond.
My 2 pesos worth
Attachments
image.jpg

Hercdrvr
Posts: 365
Joined: Mon May 11, 2015 12:52 pm
Location: McKinney TX

Re: Squirt Transom Knee

Postby Hercdrvr » Wed Aug 12, 2015 11:25 am

Get perfect angle
My brain moves faster than fingers

Hercdrvr
Posts: 365
Joined: Mon May 11, 2015 12:52 pm
Location: McKinney TX

Re: Squirt Transom Knee

Postby Hercdrvr » Wed Aug 12, 2015 11:31 am

Roberta,
I like the mini transom triangle knees you installed on your zip. I'm going to copy your idea on my current Malihini build.
Ain't this boat building fun?
Matt

Hercdrvr
Posts: 365
Joined: Mon May 11, 2015 12:52 pm
Location: McKinney TX

Re: Squirt Transom Knee

Postby Hercdrvr » Wed Aug 12, 2015 11:45 am

Pic of knee, I was surprised how much the motor well firmed up the whole thing
Attachments
image.jpg

User avatar
BayouBengal
Posts: 928
Joined: Tue Jul 31, 2007 7:29 am
Location: Baton Rouge, Louisiana

Re: Squirt Transom Knee

Postby BayouBengal » Wed Aug 12, 2015 2:36 pm

Here's mine if you're interested in any additional ideas
303 - Transom Support.jpg

302 - Transom Support.jpg

Hercdrvr
Posts: 365
Joined: Mon May 11, 2015 12:52 pm
Location: McKinney TX

Re: Squirt Transom Knee

Postby Hercdrvr » Wed Aug 12, 2015 3:44 pm

That transom is going nowhere, nice work. What kind of plywood is bottom, looks good?
Matt

User avatar
BarnacleMike
Posts: 822
Joined: Wed Sep 21, 2011 7:47 am
Location: North Georgia / Chattanooga Area
Contact:

Re: Squirt Transom Knee

Postby BarnacleMike » Thu Aug 13, 2015 9:19 am

Jeff, that's an impressive setup on those transom knees. Nice work, and thanks for posting those photos!
-Michael

Built Utility "Perseverance" — completed Aug 2016
Currently building a Zip
My Boatbuilding Blog: http://barnaclemikeboats.blogspot.com/
My Website of Boat Photos: https://michaelsmaddox.wordpress.com


Return to “Small outboards”

Who is online

Users browsing this forum: No registered users and 8 guests