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Wingmaster Midget Mustang Question

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Old 01-23-2008, 01:09 PM
  #1  
mmattockx
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Default Wingmaster Midget Mustang Question

I have a dumb***** rookie question on this ARF. I have built models for years, with many scratch design and scratch built ones. This is my first ARF, ever. Maybe last, depending on how it goes... BUT, I am at a loss as to what I should be looking for and touching up on this as I assemble it. If I built it, I would know the thing inside and out, but this is like a black box to me, the wings are sheeted and covered, the fuse built, etc. Any places to worry about that I can't easily see? What about the covering (which is pretty crappy, I would be embarassed if I had covered it myself), should I just take an iron over it to tighten the wrinkles and set the seams? What kind of temperature should I run on the iron?

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Mark
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Old 01-23-2008, 01:34 PM
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Flyboy Dave
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Default RE: Wingmaster Midget Mustang Question

The temperature of the iron depends on the covering. Some ARF's have a low temp (cheaper)
covering. If the iron is too hot, it will instantly produce wrinkles, and you will iron then "in" if
you press down on the iron. Work your heat up slowly and just skim the iron over the surface
lightly until you find where the iron heat needs to be for best results.

FBD.
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Old 01-23-2008, 08:25 PM
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rmenke
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Default RE: Wingmaster Midget Mustang Question

mmatocx:

May I add to FBD's typical sound advice, glue those wing halfs in very carefully with as little gap as possible. Re-glue and consider a little glass fiber in the glue mix at the firewall. Add triangle stock if none present. Do this will any and all arfs. CA any of the structure you can see. Trash that covering as soon as it starts to come loose. The ARF's we get today are better than most of the scratch builders can produce. But then, there are only a few old builders around any more. Very sad to me, its a wonderful feeling to design and build your own bird and see it fly very well. And then there is the sneaky modifications we make on our supposed stock raceing birds. How come your T-34 is a pound lighter Roger? Then there is always the How come your OS turns 1000rpm more than mine with the same prop? Hummm. That cause I always winn every year, stupid yankee. Be sure to seal all of the old covering seams. ENJOY
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Old 01-24-2008, 12:57 AM
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Default RE: Wingmaster Midget Mustang Question


ORIGINAL: rmenke

mmatocx:

May I add to FBD's typical sound advice, glue those wing halfs in very carefully with as little gap as possible. Re-glue and consider a little glass fiber in the glue mix at the firewall. Add triangle stock if none present. Do this will any and all arfs. CA any of the structure you can see. Trash that covering as soon as it starts to come loose. The ARF's we get today are better than most of the scratch builders can produce. But then, there are only a few old builders around any more. Very sad to me, its a wonderful feeling to design and build your own bird and see it fly very well. And then there is the sneaky modifications we make on our supposed stock raceing birds. How come your T-34 is a pound lighter Roger? Then there is always the How come your OS turns 1000rpm more than mine with the same prop? Hummm. That cause I always winn every year, stupid yankee. Be sure to seal all of the old covering seams. ENJOY
I plan to strip off a bit of covering at the center of the wings and adding a couple layers of 2oz fiberglass just to be sure. I have never trusted a wimpy ply joiner compared to a sound glassed joint. I will take a good look at the firewall area to see what can be added to ensure a long life.

Thanks,
Mark
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Old 01-26-2008, 03:08 PM
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buddude8
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Default RE: Wingmaster Midget Mustang Question

The cloth reinforcement is not needed. Between my bro and myself we have four of these birds. The ones at his house both have about 200 flights on them of fast pylon racing. Just make sure you have no gap and get plenty of glue on the wing spar. Also get rid of the cheap wing bolts and use 1/4-20 nylon bolts for the wings.

ken
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