Frame for mini cataraft - Mountain Buzz
 



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Old 06-10-2017   #1
 
richjz's Avatar
 
Salt Lake City, Utah
Join Date: May 2012
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Frame for mini cataraft

I inherited this fishing cat and the tubes are in great shape but the frame is a piece of junk. Looking to turn it into something for the kids for easy class 3. We had it on the San Rafael and it was fun but the frame was definitely the limiting factor. I am willing to build but have no pipe bending experience and I am concerned about the weight of an NRS style frame. Any advice on using a smaller diameter pipe? Connections? Attaching seats and oar locks to smaller pipe? Or what's the approximate cost on a fabricated frame?Click image for larger version

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Old 06-11-2017   #2
 
curtis catman's Avatar
 
Rivertown, West Virginia
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Build yourself something like this.
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Old 06-11-2017   #3
 
Jenks, Oklahoma
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Check out Jack's Plastic Welding website for their mini cat frames, cutthroat frame may work for you

I have a wide cut throat frame on JPW tubes and it is a very nice rig.
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Old 06-12-2017   #4
 
Taos, New Mexico
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Here: https://www.mountainbuzz.com/forums/f...mes-13726.html and here: https://www.mountainbuzz.com/forums/f...mes-21488.html. Happy frame building.
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Old 06-12-2017   #5
 
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Sandy, Utah
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What are the size on those tubes? They look pretty small diameter. Length? I have an Outcast Pac 1000 and the frame is light weight and very functional. I can self support on weekend trips with the frame. Outcast used to sell their frames on their website, but I don't see them anymore. You could contact them and see if you could get one.
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Old 06-12-2017   #6
 
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lafayette or Grand Lake, CO., Colorado
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Looks like the tubes a Dave Scadden 11' 6" low profiles, 12" Dia. Don't spend too much on a frame IMHO if I am right.. They would be better for a small lake fishing, not class 3 rafting.
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Old 06-12-2017   #7
 
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Salt Lake City, Utah
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Thanks H20shed. I had found the more games with frames topic but not the first one. They seemed to rely mostly on Sidsports components but he closed up shop years ago. The first one showed me exactly what I think I want to do. Hollaender fittings will probably be best, but I haven't ruled out EMT electrical conduit. Cataraft girl, the tubes are 13" diameter and 11' long. They look like an Aire knockoff.


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Old 06-12-2017   #8
 
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Sandy, Utah
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Those are really skinny tubes, so whatever you come up with needs to be as light as possible. My Outcast is 10 ft X 18 inch diameter tubes. The frame is powder coated aluminum and the entire boat with frame weighs 70 pounds. A JPW Cutthroat I frame might be a good fit for your tubes? Here's another idea, but maybe more than you want to spend?
Steelheader - Steelheader I Frame (Powered by CubeCart)

My mini cat has tubes made by Aire, with Aire cells and Leafield valves. It's over 20 years old, and I've had only one valve serviced. Otherwise it's in great condition. I have taken it on class III, and I've also flipped on class III. These little cats are designed for fishing, so they spin on a dime.....not always a good thing in a bigger class III rapid. Be careful with turning your kiddos loose on that little cat. I use 7 foot mini magnum cataract oars.

Here's some pics of my mini cat
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Old 06-14-2017   #9
 
Willi..., Willimina, OR
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Small tubes imply less buoyancy. Generally you'll need 6:1 displacement:load for whitewater. Turn it into a self bailing cataraft by running a duckie between the tubes or by adding a polystyrene floor.
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Old 06-14-2017   #10
 
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Sandy, Utah
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richjz - is it possible to do something with the frame that came with the tubes? It appears to have open oarlocks, but lacking a seat or rear deck. Those two things would be easy to add with some creative engineering. I think with tubes that skinny, any heavy frame might overwhelm them as Gary pointed out above.
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