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 Post subject: Junkers D-1
PostPosted: Sun Nov 08, 2015 6:19 am 
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FG Cutter

Joined: Tue Mar 10, 2015 10:36 am
Posts: 58
Location: Pennsylvania, USA
Has anyone built the Junkers D-1?

I am starting it, but have a question regarding the fuselage cross-section. The instructions show a typical cross-section (see image on assembly instructions), but I was wondering if it makes sense to fab a few "formers" out of stiff cardboard to hold the shape.

Any advice?

Thanks,
Willie

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 Post subject: Re: Junkers D-1
PostPosted: Sun Nov 08, 2015 7:30 am 
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FG Origami Master
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Joined: Tue Feb 26, 2013 7:45 pm
Posts: 343
Location: Red Bluff, CA
Willie,

On slab sided birds like that, and all large flat areas I laminate another piece of cardstock to the inside to keep it rigid. The laminated piece should be a bit smaller so you can still make your folds without having laminated piece show extra creases on the outside. I also make formers for fuselages to keep them rigid and aligned. the formers do not have to fit right at the places where the fuselage pieces join together, they can be "in there" a little. All they do is reinforce the shape of the fuselage and keep it from collapsing. They would be easy to make for the Junkers D1.

Beard

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 Post subject: Re: Junkers D-1
PostPosted: Sun Nov 08, 2015 9:36 am 
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FG Cutter

Joined: Tue Mar 10, 2015 10:36 am
Posts: 58
Location: Pennsylvania, USA
Thanks Beard!

That's sort of what I was thinking. This fuselage has flat sides that transition to curves along the dorsal and ventral portions.

I was thinking of cutting out formers to hold the main part of the fuselage rigid so that I can shape the remaining sections to match without fear of having them "distort" the main section.

I like your idea of recessing them slightly inside of the areas that fit together. I'll give it a shot and report on the results.

Thanks again,
Willie

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 Post subject: Re: Junkers D-1
PostPosted: Sun Nov 08, 2015 12:20 pm 
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FG Cutter

Joined: Tue Mar 10, 2015 10:36 am
Posts: 58
Location: Pennsylvania, USA
Oh, I also wanted to ask, does the scale prop seem to be a bit small for a plane of this wing span?

When I look at the D-1 in my Jane's reference, it appears that the prop diameter almost the same size as the horizontal stabilizer span.

Just seems a bit anemic for an aircraft of this size.

Willie

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 Post subject: Re: Junkers D-1
PostPosted: Sun Nov 08, 2015 5:46 pm 
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FG Origami Master
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Joined: Tue Feb 26, 2013 7:45 pm
Posts: 343
Location: Red Bluff, CA
Looking at the three view in the instructions and the kit, the prop looks about the correct length to me.

Beard

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 Post subject: Re: Junkers D-1
PostPosted: Mon Nov 09, 2015 5:30 am 
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FG Cutter

Joined: Tue Mar 10, 2015 10:36 am
Posts: 58
Location: Pennsylvania, USA
Okay, thanks Beard.

I'll go ahead and use the furnished scale prop.

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