MI12 Launch, and a rowing geometry question

Boats up to 15' for oars, power or sail. Please include the boat type in your question.
Nick Werner
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MI12 Launch, and a rowing geometry question

Post by Nick Werner » Sun Nov 10, 2019 6:30 pm

Hi Everyone,
I launched my MI12 today. It's a beautiful boat, and, thank goodness, it floated!

Overall, I'm satisfied. But I felt cramped rowing. My legs were sort of getting in the way, even when I stretched them out straight, and the geometry feels off.

Maybe the pic of me rowing can help you see what I'm talking about. I'm about 6 feet tall. Not sure if that matters.

As far as I know, I built the boat to plans. The seats have a hardwood veneer, which added about a quarter-inch of height.

Additionally, I had the oars resting in the bottom of the oar horns, wrapped in oar leathers. Installing the pins and getting the oars off the bottom of the horn would give me an extra 1/2 or so.

Are there spacers that could help me out? Oarlocks with a long shaft? Am I going to have to install oarlock risers on the gunwales? All of the above?

Thoughts??
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TRC886
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Re: MI12 Launch, and a rowing geometry question

Post by TRC886 » Sun Nov 10, 2019 7:52 pm

Yes, I see you have a problem...you're hitting your knees before the oars clear the water. IMHO: you need to raise the oarlocks by 6 inches or so. Most rowboats I have seen don't have this problem because the gunnels are 6" or so higher than the seat height.

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Re: MI12 Launch, and a rowing geometry question

Post by Netpackrat » Sun Nov 10, 2019 8:47 pm

Had same problem rowing my D5 with 7' oars. I shortened them by a foot which helped a lot.

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Re: MI12 Launch, and a rowing geometry question

Post by terrulian » Sun Nov 10, 2019 10:00 pm

I'm very interested in the problem but don't have suggestions. This is a Jacques issue.
Very beautiful work on the boat, she looks great.
Tony
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Nick Werner
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Re: MI12 Launch, and a rowing geometry question

Post by Nick Werner » Sun Nov 10, 2019 10:14 pm

Thanks, everyone.

I should add that the oars are 7.5 footers, which was suggested for the boat. I bought them from Sawyer.

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Re: MI12 Launch, and a rowing geometry question

Post by Jeff » Mon Nov 11, 2019 7:48 am

Beautiful boat Nick!!! Jeff

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Re: MI12 Launch, and a rowing geometry question

Post by Nick Werner » Mon Nov 11, 2019 1:59 pm

Thanks, Jeff.
Any suggestions on the rowing problem?

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Re: MI12 Launch, and a rowing geometry question

Post by Jeff » Mon Nov 11, 2019 2:04 pm

Nick, I have sent your question to Jacques (the Designer). He will get back to you!! Jeff

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Re: MI12 Launch, and a rowing geometry question

Post by Jaysen » Mon Nov 11, 2019 2:51 pm

Gotta raise the oarlock or lower the seat. Shorter oar won't buy you much as the angle will remain the same.
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Re: MI12 Launch, and a rowing geometry question

Post by Netpackrat » Mon Nov 11, 2019 4:07 pm

Certainly I didn’t mean to suggest taking a saw to a pair of custom oars. Removing a foot from mine was easy because these are what I have:

https://www.amazon.com/gp/aw/d/B0775DT8XD/

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