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AR-6 Construction Thread

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Old 06-25-2013, 04:06 PM
  #176  
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The edges of the trim were wet sanded for smooth edges.

The wing was then dried and cleaned prior to painting.

Here is the clear coated wing.
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Old 06-25-2013, 06:04 PM
  #177  
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Scott, I'm curious about your use of peel ply as a hinge. i do realize there are dozens of peel ply products out there, some being treated with release and some not. It however still leaves a question in my mind as to how the hinge holds up in the long run? Everytime I use peel ply it seperates from the fiberglass laminate rather easily and that is exactly why I use it as a release barrier between breather and laminate when I vacuum bag. Is there something special about what you use as I would like to try this hinging method.
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Old 06-25-2013, 06:48 PM
  #178  
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I'm using a generic shinny nylon fabric for the hinge. It just happens to be the same fabric being used as peel ply.

I did place a thin layer of finishing epoxy down first before adding the fabric. Then follow with 1.6 ounce fiberglass cloth.

The stuff that sticks the best is fiberglass cloth, but the issue is that fiberglass tends to crack and eventually fail.

Only time will tell what works best.
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Old 06-25-2013, 06:53 PM
  #179  
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Here are more tank, engine, and radio installation pictures:

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Old 06-25-2013, 06:56 PM
  #180  
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What was that Mom? Don't procrastinate and get it done sooner! [&:]

It's all coming together, but it always seems to be a push to get things done.
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Old 06-26-2013, 04:54 AM
  #181  
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Default RE: AR-6 Construction Thread

I do hinges very similar to Scott.
The layer in contact with the wood surface is
peel ply. Then a layer of 3.2 oz fiberglass on the
bias (45 degree orientation of the fibers). Then a
layer of 3/4 oz cloth for the finish layer. The light
cloth is mainly used because it is much easier to fill
the weave, for painting, than the heavier 3.2 oz. For
the peel ply itself, I use nylon dress lining from a fabric
store - try explaining to the ladies at the fabric store
what you are using it for!!! It is the same material that
I use for an actual peel ply when vacuum bagging fiberglass
materials, it releases just fine. I've never had a problem
with it wanting to let go when used for a hinge material.
Guess that having it on the inside and encapsulated by
the other materials holds it down just fine.
brad
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Old 06-26-2013, 07:04 PM
  #182  
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Here are more pictures on polishing the wing, installing the landing gear, and radio installation:
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Old 06-26-2013, 07:08 PM
  #183  
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Here's the finished product!

One down and the AJ-2 left to go. Nothing like last minute building.

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Old 07-14-2014, 05:22 PM
  #184  
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I've been framing up a replacement model for one I left in Phoenix.

This one has a built-up vertical stabilizer that is about 3/4" taller.

Here are some recent pictures:
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Old 07-15-2014, 08:55 AM
  #185  
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Lookin Good !!
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Old 08-01-2014, 11:04 AM
  #186  
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Default AR-6 Construction Thread

Lightly sand the surface of the model with 220 grit sandpaper and dust off the surface.

I tried something different. I followed with a light coat of rattle can primer on the surface of the model.

Dupli-Color light gray primer was used.
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Old 08-01-2014, 11:08 AM
  #187  
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In a few minutes the primer is dry.

I then applied a thin layer of lightweight spackle to the surface of the model.

You can rub it on with your hands or spread it on with a squeegee.
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Old 08-02-2014, 10:03 AM
  #188  
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In a few hours the spackle is dry enough to sand.

I followed with 220 grit sandpaper and sanded as needed until smooth.

If the surface is not filled apply another coat of spackle and continue as needed.
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Old 08-02-2014, 10:08 AM
  #189  
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Once the surface is filled, I followed with a coat of white primer (KlassKote).

I mixed about 6 ounce of primer and waited about 30 minutes before adding thinner.

An equal volume of thinner was later mixed into the primer. Pore the mix though a paint filter into the gun.

Spray on several light coats until the surface is coated.

Set the model out of the way to dry.
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Old 08-03-2014, 12:04 PM
  #190  
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I wet sanded the primer until the surface was smooth.

The model was then set out of the way until the water dried.
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Old 08-03-2014, 12:07 PM
  #191  
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About 4 ounce of acrylic enamel paint was mixed. About 2 ounces of reducer was added and the mix was filtered with a paint filter.

A light coat of paint was applied and later several more. The model was set out of the way to dry.
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Old 08-03-2014, 02:02 PM
  #192  
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Scott, Do you find you red or yellow paint schems are easier to see while test flying and racing ??
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Old 08-03-2014, 03:21 PM
  #193  
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Originally Posted by PylonDave View Post
Scott, Do you find you red or yellow paint schems are easier to see while test flying and racing ??
Red and yellow are about the same for me to see. I just want a color that others are not using.

It seems that everyone is using white. White is easy to trim, but I can't keep track of my model when all the racers are the same.
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Old 08-09-2014, 10:16 AM
  #194  
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Here are pictures showing the location of the stencils:
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Old 08-09-2014, 12:36 PM
  #195  
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Gloss black Krylon spray paint was first applied lightly.

Then follow with several more light coats to cover.

In a few minutes the paint is dry enough to remove the masking tape and stencils.

Here is what it looks like after applying the color but before applying clear coat.
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Old 08-17-2014, 10:06 AM
  #196  
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Here are pictures of the completed AR-6.
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Old 10-19-2014, 04:50 PM
  #197  
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Two more AR-6 wings are being built for new airplanes.
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Old 10-19-2014, 04:53 PM
  #198  
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Man them are some great looking foam wing cores!!!!!
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Old 10-20-2014, 04:49 AM
  #199  
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Originally Posted by Kevin Matney View Post
Man them are some great looking foam wing cores!!!!!
I agree!

Kevin provided the cores and will cut cores to your specification.
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Old 11-09-2014, 02:01 PM
  #200  
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I glassed another wing and placed it in peel ply.

This was then placed in the vacuum bag and closed up.
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