Hull Thickness on an '83 SN 2001

[kylem03]

Can anyone tell me how thick is the hull of an 83 SN 2001 directly adjacent to the existing raw water intake? I am Looking to install a through-hull with a built in 90 degree hose barb but I am not sure if it will work. Max hull thickness it works with is 1.25"

Also, I am going to be installing an auto ballast system in my boat but I just had an epipheny of sorts. I am going to be using Simer pumps to fill 3 ballast bags. At what point are the bags full enough that the pressure exerted by the water on the walls is enough to push it out through the venthose going out the bilge outlet and thus not allowing the bags to reach max capacity? I am starting to think that this could be a problem. Any thoughts or experience with this issue?? If it were a problem, I guess I would expect to have heard about it by now with all the custom ballast installs going on.

Kyle

[Laptom]

RE: Hull Thickness on an

Some people don't use vents to get the bags filled to the max. You have to keep an eye on the bags though...

The hull is not that thick, I think it was around 0.75".

[WakeSlayer]

RE: Hull Thickness on an

Your hull is nowhere near that thick. My guess is -1/2" at the most. Your bags will get plenty full before they start spitting out the vent. The higher the vent the better when oriented to the fatsacs. Neither of these will be an issue for you.

[kylem03]

Thanks for the input guys. Much appreciated. I'll take some pics once I have my manifold put together and the pumps mounted under my rear seat enclosure.

Kyle

[bobchris]

Re: RE: Hull Thickness on an

Your hull is nowhere near that thick. My guess is -1/2" at the most.

that is still a little on the high side 1/4-3/8 is all the thicker the hull is, gunnels are the thinnist and the bottom between the stringers is the thickest area. But what do I know just have the bow and one side mounted on the wall in a barn if you want to come measure for yourself.

[WakeSlayer]

RE: Re: RE: Hull Thickness on an

Ha, yeah you do.

I was guessing my estimate a little high, but wanted to dispel the 1.25" fear more than anything. I figured it was a safe, thickest point reference to calm the epiphany Kyle had.

Mike

[kylem03]

ha ha, ok I'll trust that it is around 3/8" thick then based on your barn mount...that's really funny. BobChris, Do you have a picture of that??

Mike...just to set the record straight (lol)...my epiphany of sorts was about my bags potentially not filling all the way, not the hull thickness... it would seem I could re design my project based on a thicker anticipated hull if that were the case but I'd have a more difficult time redesigning existing ballast bags if they don't hold as much water as I want them to at the end of the project.

Thanks again for your guys' input. I really do appreciate it.

kyle