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Old Dec 14, 2011, 04:10 PM
leethetreeguy is offline
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Fly em if ya got em.
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Should work just fine. I use an extention connector for some batts that are too big to fit in the charger. Lee
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Old Dec 14, 2011, 07:10 PM
Doug Sipprell is offline
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Elfi Flyer
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Another alternate battery arrangement, which I have mentioned a few times before: Hyperion 240, 25C

Works great on the Champ, Mustang, Cub, T-28...........

RD
RCG Plus Member
Latest blog entry: Big Red Cadillac
Old Dec 15, 2011, 12:27 PM
eagle1933 is offline
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I'm getting ready to replace the tail on my champ. Is there any preference as to what kind of glue to use to attach the rudder and elevator control horns? Any tricks to doing this or things to look out for?

Thank you.
Old Dec 15, 2011, 12:47 PM
olthump is offline
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Quote:
Originally Posted by eagle1933 View Post
I'm getting ready to replace the tail on my champ. Is there any preference as to what kind of glue to use to attach the rudder and elevator control horns? Any tricks to doing this or things to look out for?

Thank you.
eagle,

Take note that you dont glue them on backwards...as I did on an elevator horn once.

My adhesive choice is white Gorilla Glue or 5min epoxy, 'cuz they add a little fillet of goop for support. Foam safe ca will work as well.

Greg
Old Dec 15, 2011, 02:33 PM
astronaut is offline
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Wowee Doug, that Champ looks crisp!

I can't believe mine looked like that out of the box. Although I do think I have maintained it quite well for the past 8 months. I'd say 90% of the blemishes and damage is from the first 30 minutes of flight

I like the Hyp 240 you got, it's a great battery. I replaced the micro plug with a regular one though (on my Champ too). Makes all my batteries and chargers very interchangeable, and easier to handle. The pins on the micro plugs get flimsy and started giving me bad connections (mid-flight shut downs = scary!)
Old Dec 15, 2011, 03:26 PM
eagle1933 is offline
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Thanks for the advice olthump. Got it done with Gorilla glue. I can sure see how it would be easy to glue these things in backwards.
Old Dec 15, 2011, 03:47 PM
leethetreeguy is offline
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Fly em if ya got em.
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I am considering making a true wing for my Champ. Complete with ailerons and maybe flaps. By true wing, I mean curved on top and flat on bottom. Anyone tried this yet?
Lee
Old Dec 15, 2011, 04:59 PM
olthump is offline
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Originally Posted by leethetreeguy View Post
I am considering making a true wing for my Champ. Complete with ailerons and maybe flaps. By true wing, I mean curved on top and flat on bottom. Anyone tried this yet?
Lee

Lee,

Check out these airfoils...thread at top of scratchbuilt foam section.
Old Dec 15, 2011, 05:20 PM
Cheesehead is offline
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Ego varius quis.
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Quote:
Originally Posted by leethetreeguy View Post
I am considering making a true wing for my Champ. Complete with ailerons and maybe flaps. By true wing, I mean curved on top and flat on bottom. Anyone tried this yet?
Lee
There's a lot of aerodynamics research that demonstrates an undercambered wing - like the one on the Champ - is actually more efficient than a conventional airfoil for models like the Champ. There's no reason you can't add ailerons, either, though perhaps a bit less dihedral would be in order.
Old Dec 15, 2011, 06:00 PM
leethetreeguy is offline
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Fly em if ya got em.
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I agree. I think the dihedral would hinder the flight characteristic of the ailerons.
Thanks Olthump, I have been studying all that lately. I found some good instructional videos last night on the subject. Isn't foam wonderfull? hehe
Lee
Old Dec 15, 2011, 06:05 PM
fishycomics is offline
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careful with the use of white gorilla glue.

Any part of that Champ, that isunpainted will do just that. you got the box, you try a lil dab.

I use Rubber cement

http://www.youtube.com/watch?v=TDxO1PKgGvw
Old Dec 15, 2011, 11:34 PM
whirlcap is offline
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If it spins, wear it.
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Looks like a flesh eating infection!

I did the wing break thing and used regular white glue and some thin strips of packing tape over the seam after the glue cured. Rubber cement sounds good too.
Old Dec 16, 2011, 09:05 AM
eagle1933 is offline
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In the stock out-of-the-box Champ, are the pushrod z-bends in the farthest control-horn hole from the control surfaces(rudder & elevator)?
Old Dec 16, 2011, 09:11 AM
olthump is offline
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Originally Posted by eagle1933 View Post
In the stock out-of-the-box Champ, are the pushrod z-bends in the farthest control-horn hole from the control surfaces(rudder & elevator)?
Mine were.
Further out, less control surface movement, futher in, more.

As an aside...

The box is made of a different type foam than the plane.
I have used white GG on my Champ without any ill effects.
Just my experience, YMMV.

Greg
Old Dec 16, 2011, 09:29 AM
eagle1933 is offline
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olthump: In one of your posts a while back you show your champ with wing struts and also tail bracing between fin & stab and stab to fuse. What is your bracing and strut material and how did you attach each?


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