Alan's C17

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narfi
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Re: Alan's C17

Post by narfi » Thu Feb 22, 2018 5:18 pm

Well thanks for the rabbit trail I fell down looking at all the C17 builds :P

It looks like they have been built both ways, but it seems that it is intended to be built the way you have itset up now. (wide panel on the bottom with the narrower panel overlapping it from the top).
I think it looks better this way as well, the lap line ends up around the middle of the side, but when the wide panel is on top the line is very close to the bottom and does not look even front to back.
It also seems people have struggled with a gap at the bow that needs filled when using the wide panel on top. (because it is the shorter panel, but the top needs to be longer)

This is the way you are doing it,
Image

This picture is with the wide panel on top instead at the bottom,
Image



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alanmccabe
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Re: Alan's C17

Post by alanmccabe » Thu Feb 22, 2018 8:19 pm

Ahh, thanks so much Narfi for that help, I thought I was loosing the plot, this becomes very addictive and is great fun, I wish I had discovered it years ago when I was younger.

Have a beer on me ;-)
I love it when a plan comes together :lol:

Rmarsh
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Re: Alan's C17

Post by Rmarsh » Fri Feb 23, 2018 6:03 am

When I built my C 17 I noticed that the plans had a mislableing of sorts. The upper and lower chine panels can be confused with each other, possibly because the hull is built up side down. The narrower panel called the "lower" chine panel goes against the hull bottom and goes on first, the wider "upper" chine panel overlaps and extends to the gunwales.

In this picture of my C17 you can see the wide " upper" side panel overlaps the narrower lower panel. So with the boat upside down the lower narrow panel goes on first.

I hope that makes sense :?
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Rmarsh
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Re: Alan's C17

Post by Rmarsh » Fri Feb 23, 2018 6:13 am

Picture of my C17 build with the wider upper chine panel overlapping the narrow lower panel that attaches to the bottom.
Same as wobblylegs build.......but it could be that newer sets of plans have changed the process.
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alanmccabe
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Re: Alan's C17

Post by alanmccabe » Fri Feb 23, 2018 8:42 am

Thanks Rmarsh, really nice looking build by the way :-)
I love it when a plan comes together :lol:

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alanmccabe
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Cracking up :-(

Post by alanmccabe » Sat Feb 24, 2018 10:59 am

Well I am not sure what is happening and hopefully Jacques can respond. I have put the upper chine panels on with temp screws to check the fit and they are apparently 30mm short. I know the size is correct as I have remeasured and checked the diagonals for size using auto cad. I know the position (lower or upper) is correct as they are much longer the the lower chine panels.

Also the bow mould what is it supposed to do it seems to sit behind the :help:

Bow Mould Below seems to sit behind the closed panels approx 30mm
20180224_155347.jpg
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I love it when a plan comes together :lol:

Rmarsh
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Re: Alan's C17

Post by Rmarsh » Sat Feb 24, 2018 12:04 pm

Dont get discouraged....I think you are getting very close. A little pushing down on the bottom and shifting the overlap of the uper panel slightly might help..a gap at the bow is common an is easily filled

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alanmccabe
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Re: Alan's C17

Post by alanmccabe » Sat Feb 24, 2018 1:05 pm

Thanks for the encouragement Rmarsh. I did notice that wobbly legs is the same so I expect it is just the way it is. :-) We are heading for a really cold weather snap so I guess I am out of business for a few days :-) time for a break anyways. I expect you know all about cold weather in MA :D
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Re: Alan's C17

Post by jacquesmm » Sat Feb 24, 2018 4:13 pm

I planned for a rounded bow at the upper panel just as in the C19 and C21. The bow is sharp at the cutwater but rounded above the style line (= second panel).
If you look at fiberglass boats, the bow there is never sharp. What you did is correct.
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alanmccabe
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Re: Alan's C17

Post by alanmccabe » Sat Feb 24, 2018 4:25 pm

Thank you Jacques.

Regards
I love it when a plan comes together :lol:

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