Metacentric height is always 24/12, or so.

I think every young man can have a world of good done if they get the fear of God put in them early in life. Mine came when I realized other people were shooting back at me. Embracing mortality is a good thing for kids. For what it's worth, there doesn't actually have to be any gators present in the lake, so long as he's in the water and thinks there's man eating gators there.

 

Well, that was the one I remembered. Must I understand we have a design? Or must we beg further...........

Would you mind Paul to post a little picture, to give us a impression?

As a little teaser: Congratulations! You are the first member above the 1000 points.guess why..

Regards
Richard

 

wish i could pass in shorts but cant help much eighter
sure building be nice, but really, give him a 20 buck boat with running ob (planty on e-bay)
see what he makes of it, when he learns to chain his ob or just get his new boat home
i know, kids today want chroom and easy fast bling and my filosofy is out

 

This is the one I posted, though I think he wants something different now. At the time we'd talked him into an outboard and a little length to make life a little easier on him. This had square sections, a 48" bottom panel and full standing headroom at an enclosed helm.

Now I think he wants the inboard again, with enough hull rocker to protect the prop (I don't think he understands the idea of a skeg), still the 48" bottom panel and square sections for ease of building. Unfortunately, he's selected one of the most unsuitable designs he could have, though I think he now understands this and needs to rethink his requirements a little.

We do need to some how get a email to his parents I would think.

 

Thank you Paul.
Yes he did not like the OB idea, I remember. But I know him good enough to be sure, when he gets this sort of "package" I have in mind, he will surely not argue! So, lets forget about another propulsion if this becomes our design to go for!

I´ll try to contact the parents!

Regards
Richard

 

That design brings up some bittersweet memories; it looks remarkably like the mini-tug one of my younger brothers always wanted to build. Unfortunately his drinking took him out in his mid-fifties, before he got it done.

 

thats bling in an old fashioned way PAR, i even like it, here another approach

 

I find that I get much less information about a hull with modeled surfaces that have too many lines. My eyes can't follow what's really going on. For example, your FreeShip model, I can't really tell what's going on with the deadrise, it looks constant, but I can't tell. With a plan, profile and section drawing, I can tell exactly and even see the angles and curves in relation to each other. I guess I'm old fashioned too.

 

Richard has a building method been decided? Taped seam would keep the costs down, but he'd have to fool with goo. Plywood on frame would cut down the goo factor, but he'd have to make frames, floors, stringers, etc. making the materials and building effort go up. I'll assume taped seam for now.

 

Interesting concept Yipster: it looks like a PDRacer trying to escape a shark attack!

Par, from the waterlines in the bottom view the deadrise looks constant.

 

I would vote for the taped seam of course. But it depends on your plans.
And I have no right to decide here!

Richard

 

I assumed as much Terry, but when looking at a drawing, one shouldn't have to assume.

 

Agreed: I prefer to use the default settings of Free!Ship for the non-perspective views but they are not so pretty and the application let's the user change them freely. Which design application are you using? It makes nice drawings. I don't have anything that does clean drawings in a form I can print or put on the Net; I use Presentations but it's not good for accuracy.

 

sorry for the rough, just a 3m doodle thinking scow as alternative
but something like PDracer looks good, maybe with the skegs sail ob and tent

did not save that doodle but here new sketch delftship file
thanks to Martijn scows dont have to be square anymore
with leakpoints and lines unchecked, its just an idea
btw, only now read up on the other thread and his propulsion ideas
this pulsejet may even work bringing the exhoust above the waterline

 

The only way to make this work is to find someone who can go knock on his door, and offer some face to face help... so, of all of us, is there no one who knows someone who lives near this kid, or knows of a social program based on boat building that is near this kid... sending him money, plans, or what will never work...