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mounting control rods inside fuselage tube?

Old 08-15-2004, 04:21 AM
  #1  
azenigma
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Default mounting control rods inside fuselage tube?

I just received a NEsail Mini Floh E glider
http://www.nesail.com/detail.php?productID=128
The fiberglass fuselage narrows to a small tube after the wing all the way down to the v-tail. I can't figure out how to install the control rods, so that they will be supported in the tube to prevent bending. What is the best method the get them secure?

Thanks
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Old 08-15-2004, 09:43 AM
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JWN
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Default RE: mounting control rods inside fuselage tube?

I personally like Dubro's NySteel pushrod system, but Great Planes makes a setup almost identical to it. It's a steel 2X56 pushrod that runs inside a plastic tube the whole length just as you describe. I use these on everything from .25 - .60 size models. I secure them to the tail end of the model where they exit and the front near the servos. The middle is unsupported and I've never had a problem with flex. They aren't the lightest setup available which may make them unsuitable to a sail plane where tail weight is your worst enemy. But, you could always fab up a similar setup on your own using smaller piano wire and tube.

John
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Old 08-15-2004, 01:22 PM
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spokman
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Default RE: mounting control rods inside fuselage tube?

Maybe you could use carbon fiber rods? Perhaps NESail has a recommendation? This is a good question to get answered.
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Old 08-15-2004, 01:52 PM
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SST
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Default RE: mounting control rods inside fuselage tube?

Got an idea...When you route the outer nyrod rod tubes, run them in a ways, then put a gob of polyurethane glue on 'em, and insert them the rest of the way. The glue will expand when it dries, filling in around the tubes with very light, rigid foam. I've been experimenting with this stuff for all kinds of things, and if I have the time to wait for it to cure, I use it instead of CA as well as epoxy.
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Old 08-15-2004, 10:32 PM
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The R/C Man
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Default RE: mounting control rods inside fuselage tube?

How about a squirt of expanding foam.... That will hold them in there....
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Old 08-16-2004, 01:08 PM
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Rick K
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Default RE: mounting control rods inside fuselage tube?

Do the push rod tubes touch the fuse down there? If so you could let some fast CA run down the tubes to where they touch.
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