FS 14 Transom for short shaft 15"

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Capt UB
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FS 14 Transom for short shaft 15"

Post by Capt UB » Tue Oct 03, 2017 12:49 pm

FS 14 Transom for short shaft 15"

The plans and the CNC kit show a 20" long shaft.

I was planning on installing a jackplate (FS14LS), now that I'm building the FS14, need a little help on the transom height for a short shaft.
Has anyone cut down their transom? What would be the best approach? I do like the motor well..

Thanks, Bob.


I'm always lost when building a boat, it's when the boat is in the water, I know my way.

1970? 13' Canvas on frame canoe
2017 Bateau FS14, starting build Oct 2017.
2017 Bateau NC16, starting soon.

TomW1
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Re: FS 14 Transom for short shaft 15"

Post by TomW1 » Tue Oct 03, 2017 2:09 pm

Do you have the motor? If so measure down from the clamping plate to the ventilation plate and cut the transom to that size. Beware 15" motors can be anything from 14 to 17" so it is important to have the motor to get the right cut down. Most importantly why do you want a 15" shaft a 20" provides more protection of waves coming over the stern and is higher up for waves to swamp it. See this: http://bateau2.com/howto/shaftlength.php

Tom
Restored Mirror Dinghy, Bought OD18 built by CL, Westlawn School of Yacht Design courses.

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Capt UB
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Re: FS 14 Transom for short shaft 15"

Post by Capt UB » Tue Oct 03, 2017 3:15 pm

TomW1 wrote:
Tue Oct 03, 2017 2:09 pm
Do you have the motor? If so measure down from the clamping plate to the ventilation plate and cut the transom to that size. Beware 15" motors can be anything from 14 to 17" so it is important to have the motor to get the right cut down. Most importantly why do you want a 15" shaft a 20" provides more protection of waves coming over the stern and is higher up for waves to swamp it. See this: http://bateau2.com/howto/shaftlength.php

Tom

The 2017 Tohatsu 9.8 4 stroke (short shaft) and my 2017 trailer were bought at the same time for my 2017 15.4 Gheenoe NMZ. Sold the NMZ for more then I paid for it! So, this is what I had 15" ob and 16' trailer. No boat.....

As for water coming over the stern, I've own boats for 45 years and have sailed my own 34' Dehler sailboat 4 times across the Atlantic, two over, two back. Owned 5 Gheenoes (they are canoes), never swamped them. Anyway, 4" of freeboard will not save you from a wave capable of swamping you... I've had 30' foot waves CRASH on deck!!! Now that's F---ING scary at night or day!

Got a call from a friend, he is giving me his old jackplate. That will allow me to go up 2", and out 4-5" (setback), I will be able to run skinnier. I maybe ok with the taller transom.

So what I was asking was what have others done to run short shaft on on Bateau 20" transoms.
I'm always lost when building a boat, it's when the boat is in the water, I know my way.

1970? 13' Canvas on frame canoe
2017 Bateau FS14, starting build Oct 2017.
2017 Bateau NC16, starting soon.

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Re: FS 14 Transom for short shaft 15"

Post by cape man » Tue Oct 03, 2017 3:47 pm

The jack plate is the perfect answer. Just make sure that when tilted all the way up it clears the top of the transom. You may have to cut a slot out of the middle to allow for that, but it won't be as deep as trying to mount the motor directly to the transom.
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Re: FS 14 Transom for short shaft 15"

Post by jacquesmm » Tue Oct 03, 2017 4:08 pm

Jack plate is the best solution but you can cut any of the transoms of any of my designs to fit any shaft length.
I explain it here:
http://bateau2.com/howto/shaftlength.php

But again, a jack plate is ideal because you leave the transom intact if later you want to use another engine with a different shaft length.
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Re: FS 14 Transom for short shaft 15"

Post by Capt UB » Tue Oct 03, 2017 4:41 pm

cape man wrote:
Tue Oct 03, 2017 3:47 pm
The jack plate is the perfect answer. Just make sure that when tilted all the way up it clears the top of the transom. You may have to cut a slot out of the middle to allow for that, but it won't be as deep as trying to mount the motor directly to the transom.
Thanks.
I'm always lost when building a boat, it's when the boat is in the water, I know my way.

1970? 13' Canvas on frame canoe
2017 Bateau FS14, starting build Oct 2017.
2017 Bateau NC16, starting soon.

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Capt UB
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Re: FS 14 Transom for short shaft 15"

Post by Capt UB » Tue Oct 03, 2017 4:48 pm

jacquesmm wrote:
Tue Oct 03, 2017 4:08 pm
Jack plate is the best solution but you can cut any of the transoms of any of my designs to fit any shaft length.
I explain it here:
http://bateau2.com/howto/shaftlength.php

But again, a jack plate is ideal because you leave the transom intact if later you want to use another engine with a different shaft length.
Yes sir, I read the page about the shaft length. Good read! I really did not want to change the transom.
Thank you. After Oct 14, I'll be able to see what it's all about.
I'm always lost when building a boat, it's when the boat is in the water, I know my way.

1970? 13' Canvas on frame canoe
2017 Bateau FS14, starting build Oct 2017.
2017 Bateau NC16, starting soon.

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