Pros and cons about this rear-end?

[Jacob J]

Hello

I am thinking about making my own little boat, about 13 foot long and 4 food wide. But I am in trouble about my rear-end design. I have made a little sketch of it. What are the pros and cons about such a rear-end of such a little boat and would it be better to make another design and wich design would you recommend?

Sorry about the language, my english isn't that good.

/Jacob

 

[Jacob J]

Re: Pros and cons about this rear-end?

Ive found out, that it is called forward overhang. But havn't been able to find the pros and cons about it.

I suspect the forward overhang for pulling the boat underwater, if a wave comes from behind, but on the other hand I have seen many boats with this design, and I aspect, that nobody would make a boat with such a dangerous design of the rear end. But maybe the difference in size is a matter?

 

[Mark42]

Re: Pros and cons about this rear-end?

Hi Jacob! Welcome to iboats!

For a small boat, I think a traditional design would be best. Especially if this is your first boat build.

The use of the boat should determine the design. Do you want to put a small outboard motor on it? Then the traditional transom design should be used. The design you choose will look nice, but will not work with an outboard motor.

Do you have plans to work from or are you making your own plans?

Mark

 

[Jacob J]

Re: Pros and cons about this rear-end?

I am making my own plans. Its a small boat, so I think I can manage it. But I am not familiar with the basic needs for a design like mine.

I was thinking to install a well, or what you call it. A box that goes through the bottom of the boat in wich I can place my 2.3hk honda outboard engine. I thougth that the design would do so, that the boat didn't create such high waves when I slowly move forward.

The boat is for hunting ducks at sea, but close to the coast. I will primarly be ankered up and wait for them to come to me, so if a little wave comes in from behind, I dont want the boat to be pulled under water.

 

[Jacob J]

Re: Pros and cons about this rear-end?

Here is a picture of the basic design.. Take a look at the rear-end.. It is not much it leans forward, but maybe it is best to put the rear-end design in the trash?

 

[Bob_VT]

Re: Pros and cons about this rear-end?

I suggest that you take a look at Glen-L wooden boats. They have hundred's of tested boat plans and this might help with your design.

I do believe that 4' wide might be a bit too narrow..... you want wider to stabalize your shooting.

 

[Jacob J]

Re: Pros and cons about this rear-end?

Maybe I need to to be wider, I havnt really got that far.. hmm what about the rear-end, do you think that its a stupid idea, or do you think it would work?

 

[ondarvr]

Re: Pros and cons about this rear-end?

What is it you want to know about the design of the stern?

If you go by the first drawing, the angle of the hull (the curve up) will suck the stern down under power.

The transom will not ride over, or deflect waves well, it will actually allow waves to more easily wash over the deck.

 

[Jacob J]

Re: Pros and cons about this rear-end?

Okay, that was what I thought.. So the forward overhang is not an safe option for a small duck-boat like mine.

What is the best design then of the stern? Should it be round like a fisherboat or how do I make it lift the boat up, when a wave comes in from the back?

 

[Bob_VT]

Re: Pros and cons about this rear-end?

http://www.clarkcraft.com/cgi-local...=932731783&*******=20000109163452207071003015

http://www.montanaboatbuilders.com/duckboats.htm

http://www.glen-l.com/designs/special/sneakbox.html

http://www.glen-l.com/designs/special/duckboat.html

Those are proven and built designs for duckboats. It will give you some alternate ideas

 

[ondarvr]

Re: Pros and cons about this rear-end?

The best transom design for taking waves from the stern while at anchor, would look more like a bow. Not easy to design into a power boat, but if you plan to have a motor well enclosed closer to the cockpit, then you're free to make the stern any shape needed for what you want it to do.

 

[Jacob J]

Re: Pros and cons about this rear-end?

Thanks for the links and the answers.. Ill reconsider my design and make som new drawings and then put them up here on the forum, so you can aprove them before I go out and make something stupid..