Cessna 180 pics

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Cessna 180 pics

Postby billcost » Sun Oct 03, 2010 8:02 pm

here are a few pics of my 600 series cessna 180
when i doped the tissue 50/50 aero gloss and thinner it caused the tissue paper to wrinkle a little is there any tricks? i'm not sure if i got the tissue tight enough when i put it on. This is my 2nd build i guess i have to practice a little more
[img][img]http://farm5.static.flickr.com/4086/5049414050_40d37f84a4.jpg[/img]DSCN0615 by billcost67, on Flickr[/img][img][img]http://farm5.static.flickr.com/4107/5048794777_a7061a9b51.jpg[/img]DSCN0616 by billcost67, on Flickr[/img][img][img]http://farm5.static.flickr.com/4104/5049414868_acd975e80c.jpg[/img]DSCN0617 by billcost67, on Flickr[/img]
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Postby Phugoid » Tue Dec 28, 2010 7:59 pm

Hi Billcost,

One question did you water shrink the tissue before you doped it? Sorry for asking such an obvious question but..............

I Always find that dope makes it go slack and then tight again when doping, but never completely slack. I use Banana oil.

As far as I know Silkspan is easier to use than tissue as it has better wet strength, but is much heavier. I think I'm right in saying that unless you get the lightest weight silkspan available it is too heavy for a model of this size for rubber power.

I NEVER use a hair dryer to dry tissue, for me it's a sure fire way of getting warps in light structures like the 600 series kits. Personally I would not reccomend it (sorry stvtptn). Allowing the tissue to dry nice and slow held down in a jig or on a board does the trick, no wrinkles, no fuss.

There is actually nothing wrong with the tissue in the kits, It doesn't shrink a lot but it is ok, I have used it on occasion, my main reason for not using it generally is that is is usually boring grey/white and the esaki I prefer is lighter and soaks up less dope thus ends up being lighter all told

My twopeneth worth!

Anyhow Nice model, good luck on the trimming. You may want to straigten the tailplane up a bit. Use the steam from a boiling kettle to do this.......
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Postby scigs30 » Wed Dec 29, 2010 2:23 pm

Silkspan may be a little too heavy on this small bird if you want it to fly. The tissue in the kit is not too bad it just takes practice covering model after model with tissue to get a wrinkle free covering. The following models were covered with the tissue in the kit, and they all fly on rubber power. I also use 50/50 Aerogloss dope/thinner to coat my tissue and have never seen this happen. Did you attach the tissue with dope or glue?
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Postby lukebozek1 » Tue Jan 04, 2011 5:12 am

SCIG's has a short tutorial on covering with elmer's and it is the best I have seen. As you can see from his pics, he is the King of Tissue. I have never seen a wrinkle on anything he has done. Just be patient, take your time and the results improve with every build. This is pretty decent for a first try.
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Postby lukebozek1 » Thu Jan 27, 2011 5:43 am

Has anybody ever used water and alcohol, this was popular in the 60s timeframe. Isopropol, not Vodka.
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Postby Phugoid » Thu Jan 27, 2011 2:32 pm

I believe that it shrinks the tissue more gently than water alone.

I'm building a peanut from a plan in a book called "Peanut Power" by Bill Hannan as my next project. I'll want a gentle shrink so I don't distort the frames when the tissue shrinks, so I'm going to give a water alcohol mix a go.

I'll let you know how I get on if you like...

Andrew
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Postby Phugoid » Thu Jan 27, 2011 2:33 pm

I believe that it shrinks the tissue more gently than water alone.

I'm building a peanut from a plan in a book called "Peanut Power" by Bill Hannan as my next project. I'll want a gentle shrink so I don't distort the frames when the tissue shrinks, so I'm going to give a water alcohol mix a go.

I'll let you know how I get on if you like...

Andrew
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Postby lukebozek1 » Thu Jan 27, 2011 7:15 pm

Please let me know how it works, I think it worked pretty well for the Guillow's Lightning many years ago.
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