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Cat setup

Old 09-05-2010, 02:26 AM
  #1  
boatnut
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Default Cat setup

Chine walking ?
How do you change setup to stop a 36" cat powered by a 81 OS Max,
from walking on sponson to sponson. It has a surfacing prop.
I can just start to get on the pipe, when it starts to flip flop.
The prop hub is level with the bottom of the sponsons.
It is using a strutter setup.I can change angles on strut and rudder,
or change depth of strut. Which way should I start?
This is my first big cat, Thanks for any advice.


Having this much fun must be illegal
Old 09-05-2010, 05:00 PM
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rcguy1411
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Default RE: Cat setup

thats alot of power for that boat i would lift the strut about 1/4 inch up to start what is the cg could be to much prop in the water creating the chine walk at i had a 40 " cat with an .80 and it took alot to get it to run well
Old 09-05-2010, 07:38 PM
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Angel727
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Default RE: Cat setup

I will change to a bigger prop with a rake of 10. What prop you got? You didn't mentioned in your post. That really help us.
Old 09-07-2010, 12:42 AM
  #4  
boatnut
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Default RE: Cat setup



I was running a prather 250.
I have a  balanced  X1445/3, I can try .
I will try one thing at a time to fix the problem.
I can raise the strut a little to see if that works.
How should the strut angle be, up or down?
How about rudder angle, forward or back?
  Thanks for the advice.



    Having this much fun must be illegal

Old 09-07-2010, 09:55 PM
  #5  
siberianhusky
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Default RE: Cat setup

SMaller engine! Probably way over powered.

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