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Old Sep 17, 2014, 09:15 AM
DrFragnasty is offline
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Thermal Wrangler
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Launceston Tasmania
Joined Mar 2004
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Just ask Jiri: info@baudismodel.com
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Old Sep 17, 2014, 11:52 PM
AlpineDSacro is offline
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Australia, QLD, Gold Coast
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More pics or it didn't happen ..... & we want to see them in your new man shed !
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Old Sep 18, 2014, 12:16 AM
target is offline
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Detail Freak
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Harbor City, CA
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I really want to know what those two little carbon pieces are for. They are for something, or Jiri wouldn't include them!
R,
Target
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Old Sep 18, 2014, 06:37 AM
Daryl Perkins is offline
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United States, VA, Falls Church
Joined Mar 2007
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Quote:
Originally Posted by target View Post
I really want to know what those two little carbon pieces are for. They are for something, or Jiri wouldn't include them!
R,
Target
Trying to do this on my iPhone so I apologize for any spelling errors.

The last fuse I got from jiri had one smallish fuse opening under the canopy area. It had the 2 carbon rods or extrusions. It also had a precut CNC'd servo tray. If you notice the servo tray has a recess cut in it on the sides which are exactly the same thickness as the carbon pultrusions. The carbon is also slightly longer than the opening in the fuse. I had never confirmed this, but I expected Jiris idea was to use the carbon to effectively extend the servo tray past the cutout in the fuse to keep the fuse from breaking at the openings.

It's a really good idea and would help a lot. I put mine together so quickly, I forgot to place them before bonding in my tray. My fuse held together for a really long time only requiring a minor carbon reinforcement at the opening under a really hard half ballast landing. The guy I sold it to is a little harder on it, ok A LOT harder on it, and needed to reinforce it a few more times.

I believe that's what those carbon pieces are for.
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Old Sep 18, 2014, 09:09 AM
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Detail Freak
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Harbor City, CA
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Thanks for the answer, DP.

R,
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Old Oct 06, 2014, 09:58 AM
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United States, CA, Fresno
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147 Posts
the Vixen performed wonderfully!!! great plane wonder what it would be like in the 63oz range. learning the plane every time out. It keeps getting better
MB3
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Old Oct 06, 2014, 04:44 PM
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Mark Triebes
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Elk Grove, CA
Joined Sep 2001
942 Posts
You just like it cuz it's funky and different, Browning! You probably like Redheads too!?!
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Old Oct 06, 2014, 05:25 PM
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Everything's A Compromise
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Joined Jan 2005
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I maidened my Vixen over the weekend.

After 4 flights I had it pretty much how I like it.
This is, with out doubt, THE nicest soaring model I have ever owned in my 34 years of RC soaring. It feels like I'm cheating

CG initially set at 111mm and remains there. Weight is 1930grms (68oz). Tow hook is left at the manufacturer's 595mm from the nose.

I used a pair of THESE for the flight pack (Yes, with a balance plug) and plan to top-up after every couple of the rounds/flights with a field charger.

Re. canopy retainer, I used magnets in the fuselage and glued lengths of 2-56 push rod wire to the canopy. Successful so far but hasn't been put through the rigours of a competition yet. It may dislodge on less-than-graceful landing. Time will tell.

Looking forward to the next outing.

David
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Last edited by Larrikin; Oct 07, 2014 at 06:23 PM.
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Old Feb 02, 2015, 08:47 AM
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Sweden, Piteå
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101 Posts
I just couldnt resist it

so I just had to get one
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Old May 16, 2015, 03:36 PM
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Sweden, Piteå
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101 Posts
Well now i have done a few flights... Getting happier and happier. My goal was an multipurpose sailplane that can fly in f5j and with the same setup be ballasted and be flown in f3belectric. AUW 2050-4080gram. I just cant say if i like it best max ballasted or empty...

Photo:Bo Häggkvist www.actionfoto.eu
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Old Jul 27, 2015, 12:57 PM
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Sherman Knight
Kirkland Washington
Joined Feb 2002
1,432 Posts
Mixing

Daryl, Mike S and JT,

Can you give ma a quick rundown on how you set up the six servo wing? Things like did you use the center control surface as an aileron? Are there some flight mode differences you used the center control surface for? How did you use it in landing mode?

Thanks guys.

Sherman
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Old Aug 17, 2015, 08:35 PM
Hoot is offline
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United States, TX, Houston
Joined May 2003
604 Posts
How to find neutral flap/aileron position

I'm adjusting initial control throws on my Vixen. There aren't any neutral marks on the fuse for the flaps. How do I determine the neutral position for the wing ailerons/flaps?
I decided to work my way in from the tip.
I found neutral on the tip aileron, then aligned the central control surface with the tip and finally aligned the flap with the middle control surface. The problem is if there is any warping of the control surfaces then the neutral will be off.
Will putting a straight edge on the bottom of the wing show me the neutral position?
Thanks in advance !
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Old Aug 17, 2015, 09:06 PM
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Fort Worth, TX
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Hoot - I faced the same problem when setting up my Vixen. I've been flying the Vixen over the past year or so. I started with the same process as you describe. That is, align the outboard aileron at the tip and work your way in to the root. That will get you in the ballpark. After that, trial and error shall be your guide. There is a small root profile molded into the fuselage but it is hard to discern. When using this fuselage root profile, I find my neutral camber point (setting for cruise or normal flight) is about 1 to 2 mm above this molded profile. This rings true to something the designer, Daryl Perkins, said in an earlier post...that you will find the Vixen benefits from a reduced camber for cruise. In finding the sweet-spot for the neutral setting, I simply placed normal flight mode camber on my camber slider and adjusted until I was happy with the cruise. Hope this helps.
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