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Old 05-26-2010   #1
slickhorn's Avatar
Seattle, Washington
Join Date: Dec 2005
Posts: 365
12 cat frame?

probably a legend. what frame width am I wanting in this boat? tube to tube width? total width of the frame?

what do you prefer?


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Old 05-26-2010   #2
The Mogur's Avatar
Oregon City, Oregon
Paddling Since: 1972
Join Date: Mar 2010
Posts: 457
Your frame width can vary across a pretty wide range. Generally speaking, the further apart the tubes are, the more stable the cataraft will be.

The diameter of the tubes enters into the picture indirectly. The bigger the tube diameter, the longer the oars you will need to reach the water at a manageable angle. For 24" tubes, your frame will be so high above the water that you'll need 10' oars. For 22" tubes, 9.5' oars. For 18-20" tubes, 9' oars.

The length of the oars determines the oarlock spacing. The oarlocks should be spaced apart by roughly 2/3 the length of the oars (this varies by personal preference--I like mine a bit closer together than 2/3). In theory, the oarlocks or pins for your 9' oars should be 72" apart. Use that dimension as a starting place for your frame width.

The other key dimension in determining the width of your frame is the length of your ice chest(s). My Yeti is 42" long. So I wouldn't want a cataraft frame that has any less than 42" between the tubes.

All clear?

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Old 05-26-2010   #3
slickhorn's Avatar
Seattle, Washington
Join Date: Dec 2005
Posts: 365
Originally Posted by The Mogur View Post
All clear?
Well, I won't be carrying a cooler ... so ... no. Got a rough range of widths I might consider? I'll start the bidding at 24" too narrow and 48" too wide.
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Old 05-27-2010   #4
over the horizon
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Carbondale, Colorado
Paddling Since: 2003
Join Date: May 2009
Posts: 267
I'd like to mention the benefits of narrowness. too. Been rowing a Jack's Cutthroat that is 12" tube to tube ant it is a kick in the pants! fits in boulder gardens, pivots on a dime, crosses eddy lines without issues. A stable cat is one that is t'd up to shiat and in the right spot on the river. With 12' Legend tubes you have the potential to create a boat that can go places. I would hate for you to ruin that with too wide a frame. I just built up a new frame this winter that is 34" tube to tube and it still has a small feel, but I wouldn't go much wider.

P.S. - no cooler??!?!!? Are you in this sport for the right reasons?
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Old 05-27-2010   #5
slickhorn's Avatar
Seattle, Washington
Join Date: Dec 2005
Posts: 365
when I need a cooler, I have my 16 avon and dry boxes. this rig will be whitewater day trips 1 person <5 day trips, SF Salmon, Illinois, that kind of thing. I don't haul a cooler on those trips. Which is certainly not to say I'm lacking in the various substances so often stored in the cooler ...

so for a legend, sounds like 28"-36" might be a basic range, narrower also being in play, with the sacrifice of a little side-to-side stability.
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