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Sep 04, 2013, 06:35 PM
Entropy is happening!
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Box section EPP fuselage.


I'm planning on putting together a light 1500 mm span EPP plank at our coming Manilla Slope Festival. It will have a PW75 airfoil and I'll cover it with laminating film. This will be my first attempt at using Lam film.
I decided on the spur of the moment to make up trial fuselage using 12mm sheet offcuts from a former EPP wings sliced down using my hot wire.
I cut out the sides using a fibreboard template and laminated 200 gsm uni-carbon to one side of each (to become the inside of the assembly). In hindsight, I would use uni-glass instead due to any 2.4 ghz shielding concerns.
I then cut some more sheet to form the top and bottom of the fuselage and laminated this with 200 gsm uni-glass.
Some formers were made with some carbon strip which I had made some time previously to fit several stations.
The assembly was a bit of a fiddle, and some more thought is needed to get this sorted. But I used some hot glue for the first bottom/side join. Not a good idea, as this caused some sanding problems later on. However, it did provide a good start. The battery pack (4 AA cells) was hot glued into place and well supported as far forward as possible. The remaining side and bottom was glued up using PU glue and spiral wrapped with tape overnight.
I shaped and sanded the corners this morning and the result looks quite presentable! Nice and light and very stiff!
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Sep 05, 2013, 06:49 AM
SINK HAPPENS !!!!
EeleyEagle's Avatar

Lam Film


Jim,
Do you have laminating film ? If not I have plenty, just let me know. Your plank is looking good.
Andrew
Sep 05, 2013, 04:07 PM
Entropy is happening!
Jim.Thompson's Avatar
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Yes I have some thanks Andrew.


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