Q-40 Racing Discuss AMA 422 and any other variants of Quarter 40 racing

AR-6 Construction Thread

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Old 01-07-2013, 10:56 AM
  #101
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ORIGINAL: s-10promod

Looking nice Scott!!
Now it just needs my trim colors and numbers!!!

That can probably be arranged!
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Old 01-08-2013, 05:40 PM
  #102
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Default RE: AR-6 Construction Thread

The wing and fuselage had a few areas where the paint surface was dull, due to soaking into the Spackle.

I wet sanded the wing and gave it another coat of color. I wet sanded a few areas on the tail surfaces and fuselage. Those areas were also given another coat.

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Old 01-10-2013, 07:27 PM
  #103
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Default RE: AR-6 Construction Thread

After a couple days a wet sand (800 to 2000 grit wet-and-dry sandpaper) was done on the finish to remove dirt and bugs.

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Old 01-12-2013, 10:18 AM
  #104
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Default RE: AR-6 Construction Thread

The trim pattern will be similar to that of my AJ-2. Here are some pictures showing the configuration of the trim:

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Old 01-12-2013, 02:03 PM
  #105
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Default RE: AR-6 Construction Thread

The rest of the model was masked off to keep off in areas not wanted.

I used gloss black Krylon spray paint for trim.

Apply a light coat first. Let dry a few minutes and then spray until the paint covers.

In about 1/2 hour the paint is dry enough to remove the masking paper.
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Old 01-13-2013, 09:06 AM
  #106
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Default RE: AR-6 Construction Thread

Great job as always Scott!!!
Look forward to seeing you at the Basin Q-40 race next month.
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Old 01-13-2013, 01:18 PM
  #107
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Quote:
ORIGINAL: masama1107

Great job as always Scott!!!
Look forward to seeing you at the Basin Q-40 race next month.

Thanks!

I'm looking forward to the race.
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Old 01-13-2013, 01:20 PM
  #108
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Default RE: AR-6 Construction Thread

I wet sanded using a piece of 2000 wet-and-dry sandpaper and water.

Hopefully there will be some warmer weather for applying the clear coat.
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Old 01-14-2013, 12:10 PM
  #109
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Default RE: AR-6 Construction Thread

Looking good, Scott!Great work with many building tips and techniques and promoting the sport of Pylon racing in general.The model looks great, except maybe the color red. I prefer mind in yellow or gold color instead. ;-)
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Old 01-16-2013, 05:41 PM
  #110
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Default RE: AR-6 Construction Thread

The temperature warmed up from 20 F this weekend to about 50 F today.

I took this opportunity to spray on the clear coat.

A fast hardener was used as the temperature was cold. I thinned out the clear coat using a fast reducer, so it would lay down easier in the cold temperature.

A light coat was applied over the surface. It was let to dry a few minutes and then more coats were applied until the surface was shiny.

I set the parts out of the way to dry.

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Old 01-16-2013, 06:24 PM
  #111
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Default RE: AR-6 Construction Thread

Lookin' good, Scott!
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Old 01-19-2013, 04:46 PM
  #112
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Default RE: AR-6 Construction Thread

The following pictures show wet sanding and polishing the finish:

Use 2000 grit wet-and-dry sandpaper used wet to remove any dirt and runs.
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Old 01-19-2013, 04:48 PM
  #113
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Default RE: AR-6 Construction Thread

I followed with a cleaner polish. This is like the rubbing compound that we used to use. The picture shows a gradual improvement in the finish.

I finished with a liquid wax. The overall finish looks very good from 5 foot, so it's a 5-footer. [8D]

I'll have to wait until warmer weather for that super finish.
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Old 01-20-2013, 01:01 PM
  #114
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Default RE: AR-6 Construction Thread

I talked to Kevin Matney from Matney's Models about the difficulties when polishing out the wing.

After polishing the wing still had scratch and swirl marks. Kevin suggested going to a new foam bonnet and using a finer compound.

I used the foam bonnet and finer compound and now the wing looks considerably better. The following pictures show what the bonnet looks like:

The foam bonnet is standard equipment provided with a 6" Turtle buffer.
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Old 01-25-2013, 05:07 PM
  #115
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Default RE: AR-6 Construction Thread

The servos were installed using socket head screws.

http://www.microfasteners.com/catalo.../TWSSHWHMS.cfm
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Old 01-26-2013, 10:20 AM
  #116
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Default RE: AR-6 Construction Thread

The aileron pushrods were installed and the ailerons were cut free in the following pictures:

The aileron hinge line is freed up by moving the aileron at the hinge line.
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Old 01-26-2013, 02:29 PM
  #117
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Default RE: AR-6 Construction Thread

Looking good Scott, let us know how the flights go!!
Ill see ya at the Basin!!
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Old 01-26-2013, 03:00 PM
  #118
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Default RE: AR-6 Construction Thread

Scott, Rather than using nylon clevis, use Hayes Steel Pin Clevis instead. Especially in our pylon racing models. You can purchase the steel pin clevis at Tower Hobby or any other hobby shop that carry Hayes products. Just a thought!
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Old 01-26-2013, 03:14 PM
  #119
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I may have to try the Hayes connector at a later date.

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Old 01-26-2013, 03:18 PM
  #120
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Default RE: AR-6 Construction Thread

The following shows the elevator pushrod construction:
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Old 01-26-2013, 03:21 PM
  #121
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Default RE: AR-6 Construction Thread

More pictures:
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Old 01-26-2013, 03:29 PM
  #122
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Default RE: AR-6 Construction Thread

Marty,

I'm looking forward to seeing you and others again.

FYI - Those engines you sold me have been running great![8D]
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Old 01-26-2013, 04:55 PM
  #123
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Default RE: AR-6 Construction Thread

The rudder pushrod is constructed similar to earlier pictures:
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Old 01-27-2013, 07:59 AM
  #124
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The engine kill was installed in this sequence of pictures:
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Old 01-27-2013, 02:56 PM
  #125
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The following pictures shows the installation of the tank:

Initially mount the tank as high is it will go in the fuselage. Mine ended up about 1" above the wing.
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