The chine is the articulation between the bottom and side on a atomic number 23 tush or two-dimensional tush The basic flavourless bottomed boat is great for farm ponds creeks and Download the plans aluminum flat bottom boat plans. Location: Danube Delta Building a stern tunnel into an existing flat bottom aluminum boat Hi everyone.
The boat as you can see in the pictures has two pontoons attached to the sides to increase stability.
5.In order to lower the draft I will need to choose a smaller diameter propeller (and I will prefer 3 blades as they run better in weed infested waters) what would be the equivalent propeller so I can keep same gear box for a 40cm diameter ? what pitch. Location: seattle Wa USA would a jack shaft and stern drive solve the problem?
Location: Danube Delta Stern drives are complicated, expesive and unreliable so they are kind of out of the question.
Location: Danube Delta Here is the tunnel with the same proportions given in CDK's sketches.
One question is - where should be the water line so the tunnel operates optimally also in reverse? I can not go wit the rudder lower than the skeg as it will cause problems when hitting a log under water r in the shallows. The boat will go slow most of the time and manoeuvring is very important to me as the canals are narrow and full of surprises. Location: OREGON How about wraping a Cort Nozzle around the prop for protection? Location: Danube Delta Well cort nosels are complicated things and in the weeds they are useless just like jets. Daniel I was pointing you towards the strong upper mounting of the rudder plus the method to make the rudder blade stiff in sideways bending, that you can see in the pics. When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Location: United States I am interested in taking a 14' jon and adding a 2' tunnel turning this flat bottom into an aluminum cat?
Location: United States I would like to turn a 14x4 jon to a 14x6 by adding a 2' tunnel through the bottom of the boat. Location: Galveston, Texas cat or vented tunnel What will you be using the boat for?
Location: United States I was thinking that a scooter cat would be more buoyant than a flat bottom due to its catamaran style and the fact that we made it wider from 4' wide to 6' wide. Location: Louisiana Good thread I have thought of a tunnel boat as well but only for speed.
Location: United States is there a big difference between marine grade aluminum and regular aluminum sheets.
Originally Posted by carpe_diem956 is there a big difference between marine grade aluminum and regular aluminum sheets. I know that 5052 bends a lot easier then say 5086 but I believe 5086 actually welds better then 5052 but it doesn't maybe bend as easily as 5052. Originally Posted by carpe_diem956 I was thinking that a scooter cat would be more buoyant than a flat bottom due to its catamaran style and the fact that we made it wider from 4' wide to 6' wide. Location: United States possibilities I am really fascinated and extremely interested in these aluminum boats.


My question is to any one that is smarter than me is the sides of the boat is 20" high and the rake bottom is 5' back. Location: Gulf Coast USA I presume you're going to fold the sides up from the bottom since you said the only welds are on the ends.
I never thought about that hell if you know it is a solid weld for all the seats and especially the bench seat hell that all acts like flotation. Transom you're right is overkill, I've seen a transom similar to your but not that over built. I like the idea of diamond plate almost be nice to make the entire boat on the bottom out of it simply so you don't slip.
I have noticed that the boat runs better with a load up front and that is another reason for the hatch and storage up in the bow seat. I could run faster, but I can't run trot lines at 40 mph and some of the back water is tight. Location: Galveston, Texas Building Aluminum Boats I have built two aluminum flatbottom boats. Location: Louisiana Thats pretty cool, I've never seen any boats like that in Louisiana but have seen a few down in Florida. Also, by leaving the half pipe open at the back, I am able to use that for the live well drain. Location: Galveston, Texas The 16' scooter I started April 2 011 and put it in the water the first week of June working on the week ends. Location: Louisiana I'd like to see more picture angles of the mud boat you built? Location: Galveston, Texas The scotter does have storage under two hatches on front deck and even more in and under the CC.
Attaching what I have, I will try to take pics after I put the mud motor back on this week end. Location: Louisiana Very nice I like the pictures of the one for the mud motor, I bet it really would fly with like a 30 outboard. Beginning in that respect is no one higher-ranking way to build an aluminum can’t come up an atomic number 13 contrive of the size and type you deficiency you power check designs. Here at one time the decision was made to give it axerophthol go atomic number 2 ordered up the plans. I have purchased this boat a few weeks ago and I am planning to modify it a bit to suit my needs. I have downloaded the pictures you have posted and found particularly interesting the tunnel build for the ex jet powered boat.
You may very well use a traditional lower bearing to connect the blade to the heel, but don't expect it to carry side forces. I'm not sure what is meant by a vented tunnel but the idea was to run the tunnel from the engine all the way to the bow. I was told that a lot of tunnel boats are square shaped when a round tunnel is better for less cavitation but I'm only wanting to go fast. This guy basically takes a full sheet brakes the sides and cuts what is the bottom plate of the boat and pulls the sides in to where he wants them. It's been over a year now and I still haven't built mine yet but I must say I have learned a ton from reading online and I'm glad i have because i would have already made some real costly mistake if I had jumped into it.


Thats really a good idea although the down fall like you have experienced is when you do weld that bench seat to the floor the bottom won't be perfectly flat and it creates a slight hook under the boat. I ask because I have always noticed when winter rolled around and it was cold out when i was welding those boats it just seemed like I had less distortion on the thinner stuff. They work much better than expected and the boat handles great in tight turns with no sliding. I just got a Miller 211 this past christmas and am hoping to start a small boat project as soon as i get my 220V wired into the shed so i can use the machine on some thicker stuff. Gator Trax offers senior high quality shallow water boats and impost built atomic number 13 anticipate nowadays & custom build amp flat hind end gravy boat to meter. If you can't find the thread, I'll see if I can stir my sediments; the sketch should be there somewhere!
My question is how would this system work with a 21" prop and a skeg for protection but without the closed ring as this will cause problems when going through weeds. Even better to omit the lower bearing altogether, and just let the aft part of the heel slip under the bottom of the rudder. For a flat bottom boat I assume the rake is long gradual turn up but I want to make sure I am going to do this right. My boat is a 15x52 and to tell ya the truth it would be dam hard going back to a narrower boat. My next one will have the half pipes welded in the bottom to where the roll up the front will start.
I want to start with something small and eventually build the 30 ft center console i drew up.
I've studied a lot of pictures and the way some lay there boat out and this is mainly the mudboat guys but they have some dam good ideas. The heel profile forward of the prop should be rectangular (vertical) with proportions ~60 x 10, with corners VERY well rounded! The other is a 12'X4' poling skiff, weight is 200 lbl 16 hp copper head mud motor not in this pic. I mean in turns just seems like with a higher center of gravity seems like it would want to roll. The low cost flat bottom boat you just purchased is as buoyant as you can get, anything you do to it will make less so.
Obviously they creating these boats out of composite or fiberglass but is there a business in creating these small boats out of aluminum. Please email me some pictures of the next boat you start because what I see you do on this one has given me some idea on what I want to build.
I have seen several cases where just a few minutes of more prep to keep small pieces straight when welding would have saved hours in the long run.




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