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Old 01-13-2010 | 01:00 PM
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Popriv
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From: bellingham, MA
Default Hot wire cutting tips?

Not exactly a beginner topic, but,

We are starting to play around with cutting foam wings out of whatever foam I find at home depot/lowes.
We have the wire cutter and now I'm working on making the airfoil template and cutting jig.

Going to try a straight wing and a delta wing (delta wing might be pushing it a bit, we'll see how the 1st one comes out)

Any tips greatly appreciated.

whats the best foam?
Lowes has Dow Blue styrofoam insulation 2" x 2' x 8' and Polyshield expanded polystyrene 2" x 4' x 8' ( this has a layer of plastic on it)

The blue feels heavier, denser, stronger? looks good. ( I've also seen pink insulation somewhere )

what wing dimensions? I'm thinking 9" x 20" - 24" on the straight wing and the delta, 22" long, 9" at the root and 5" at the tip??

what airfoil shape to use? I've found a few online or I'll just copy one off the plans from one of my kit planes I built.

I'll use these wings with an OS .15LA or TTPro .36 ???

if lucky, I'll get something usable

Steve