marshboat model--feedback welcome

Denny,

I just looked through the first page of the hybrid thread. I'll take a look at the others. I'd like to see how the longer versions turned out.

Rick
 
Sounds like you need to slam a couple KARAs together. Fits what you want from what I can tell, they are on the heavy side, but unless you have a lot of time on your hands you aren't going to build two of anything that will end up well under 100 pounds.

T
Click to expand...


You may be right. The advantage of the karas is that they are a quick build.

Rick
 
Sounds like you need to slam a couple KARAs together. Fits what you want from what I can tell, they are on the heavy side, but unless you have a lot of time on your hands you aren't going to build two of anything that will end up well under 100 pounds.

T
Click to expand...


You may be right. The advantage of the karas is that they are a quick build.

Rick
Click to expand...


Not very exciting, but if you built them as intended and didn't get fancy they would do what you need. You got a young guy to muscle them around too.
 
Dave,

What do you mean "work party?" I'll have it almost done by then. All I'll need help with is the sanding. I'll even supply the sandpaper.

Rick
Click to expand...


I think I know someone who could supply the sandpaper. Let me know.

Mark W
 
Tom

I thought the poleboat was really heavy. You brought it along a couple of summers back, and I think shortly after that you threw your back out trying to get it on top of your truck. Isn't that right ;)

Rick
 
Attached is a boat I built in our basement. 12' long, 36" wide. I used BCX and 1x dimensional pine from menards. 4 oz cloth and epoxy on the outside, epoxy only on the inside.

One difference from my boat to your model is that there is about 3" of rocker in the bow and stearn. The rocker works really well for easing through thick weeds and over longs (gotta be careful though! ;-) ) I rows pretty well with oars. The tracking is pretty poor for paddling though. I suspect a beam your looking at would want to "wag" back using a kyak paddle. Not a big deal for a few hundred feet though.

View attachment New Bitmap Image.jpg
View attachment New Bitmap Image.jpg
 
Rick, I'm pretty sure it weighs in about 85 # which isn't much for 14 ft long. That is the one that tore my back out but I'm an old guy. I'm going to put it on the big buck scale one of these days when it pokes its head out from under the snow and get a current true weight. As a matter of fact it was loading it on my trailer that got my back but then my back can go out just bending over like it did yesterday, I must need a whippersnapper that wants to "hunt ducks" (load the boat, paddle the boat, set and pull decoys and clean the birds). The offer stands if you would like to try it just let me know. Good luck.
 
Hi Rick,
That is very similar to a boat that I built 14 years ago. Mine is 12' 4" long and 60" wide. It is very stable, but it is difficult to pole. I use a transom mount trolling motor to propel mine and it works very well. I would suggest that you make your transom board taller to accept the trolling motor mount. I used a 27 lb. thrust motor, but a bigger one would be better. I run mine with the motor tilted, so the prop is barely in the water. It makes a lot of noise, but it moves the boat through the cat tails fairly well that way. In open water, I put the motor down so the prop can grab the water better. You may want to put a fair amount of angle to your transom or make it like the Black Brant III with a cut out for the motor to clear the transom. This would let you run in fairly shallow water with the motor down all the way.
The dimensions you have, should be perfect for one person and a dog. I have had as many as three people and a dog in my boat and it handled it very well.
 
Forget computer programs. For me, they take longer and add no real benefit.
Click to expand...

Now, now. If you enjoy messing with the programs, then the journey is part of the fun. I can knock out a basic hull shape in a few minutes. A benefit is that you can see what you are designing and figure out construction problems as you add features.

This boat is also 15" at the gunnels, but 48" wide and 11 feet long. Very similar to the model except I made the deck also 15" high to give foot and boot room under it. I got this idea from the Hybrid thread on that other forum.

I think it would be big enough for one person with a dog and about a 2.5 or 3 horse motor. If I hunted facing the bow I would have 2 to 3 feet behind me for the dog's pop up "kennel" yet to be designed.

Bob
View attachment 11ftr1.jpg

View attachment 11ftr1.jpg
 
Rick,
you got some good advice here. I would not abandon your own design if that is what you think will add som fun to the project for you and your son. The cost is not going to be that high and you will learn a lot from your building.
I love my KARA but do not think it suits open water on any but the calmest days.
The rocker on both ends is essential to paddle or electric power under the planning speed. It lets the water get away from the hull without a big dragging wave. Think pumpkin seed on its side.
I like the looks of the boat posted above (Butler Link?)for a little more open water. It looks to have more freeboard than the KARA and higher bow and stern. Either would work well with a side mounted electric motor.
If you can find some Aircraft model plywood it works well for modeling as it bends the same as the real stuff.
Sams Book has one of the best sections I have read on how to get a half model out when building out of plywood. It is worth the cost for that alone in my opinion.
Have a ball with your son. It is the best part.




 
Thanks for all the feedback.

I'm leaning now toward either building a couple of karas or redesigning the model above to lift the stern a bit and lessen the drag.

Robert--the computer graphics of your boat design look really cool.

Tom--I thought the poleboat was over 100 lbs. 85 makes that a possibility. I'll keep that in mind too; if I'm up near the twin cities in the next couple of months I'll give you a call and see if we can arrange a time to take it out. Even if I build a kara, I still may want a poleboat down the road.

Scott--your boat is pretty close to what I've had in my head. Thanks for sharing the pic.

Bob--I need to look at Sam's book again. I must have skipped the chapter on building models.

Rick
 
Looks kinda like a cold bath getting ready to happen as the beam appears a little narrow for a big guy to stand in and pole. Sitting and rowing or paddling OK, All in all a bit small though pretty.
Harry
 
Going back to the drawing board is what I was going to suggest, an actual drawing board. Draw out side and overhead views. Much easier to make changes to, than a model. Forget computer programs. For me, they take longer and add no real benefit.
Click to expand...


I've never built a boat but I've helped design hydraulic pumps on airplanes and believe me... CAD models are far greater than board drawings someone can create. The main factor is being experienced enough to model efficiently so I can see how it would be counter-productive for some people.

My 2 cents anyway...
 
Going back to the drawing board is what I was going to suggest, an actual drawing board. Draw out side and overhead views. Much easier to make changes to, than a model. Forget computer programs. For me, they take longer and add no real benefit.
Click to expand...


I've never built a boat but I've helped design hydraulic pumps on airplanes and believe me... CAD models are far greater than board drawings someone can create. The main factor is being experienced enough to model efficiently so I can see how it would be counter-productive for some people.

My 2 cents anyway...
Click to expand...

If you are already trained on cad great. If it takes you longer to learn how to use it than it would just to draw the thing out, not so great. I am way behind on recent cad programs. A lot of boats were built lofting them out on construction paper. One advantage is laying it out full size.

You just do what you can do and don't do what you can't do. I do wish I had a nice cad program, but don't need it enough to spend the money and time.
 
After all this talk about marsh boat weight I decided to dig out the Poleboat and hang it from the tree on a scale. I was wrong about the weight of mine- 125# on the big buck scale. First I was a bit dissappointed, then I begin to feel pretty strong yukyuk and not so bad about hurting my back. Oh yeah, my Canyak weighed in at 70# so that was a pretty good guess at 65#. So the facts are 125# and thats my story. Even though she is heavier than I thought I still plan on keeping her.;-)
 
You must log in or register to reply here.
Back
Top