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Old Dec 09, 2004, 12:55 AM
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24 foot wingspan fff beast -build thread


Alright-
I'm starting to build my biggest foam plane yet. I'm using pink fan fold foam. It has a plastic layer in the middle so you can peel it into 1/8th inch sheets.

Specs-
24 foot wingspan
fuselage length ~12 feet
weight- hopefully under 20 lbs
Essentially a full scale foam Cessna

Not sure about a motor yet, but it will be some kind of big brushless.

Here's a picture of the foam, peeled into 1/8th inch sheets.

More to come soon.

-Hans
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Old Dec 09, 2004, 12:58 AM
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the wing spars are done
some more info on the wing- 24 foot span, 2 foot chord
= 48 square feet of wing area

It's a monster.
-Hans
Old Dec 09, 2004, 01:01 AM
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Sounds cool to me. What kind of airplane are you making? This has to be one of the largest RC airplane and certainly a foamy. You can ride in that airplane. Good luck with it.
Old Dec 09, 2004, 01:48 AM
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Should be a great project. I would work out the power system and battery first, though...
Old Dec 09, 2004, 02:04 AM
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It will end up looking like a supersize .40 trainer type-high wing, a little dihedral, rudder elevator control. I have a stack of 26 ribs cut out, they are 22 inches long and a little over 3 inches in the widest part. I'm just making up the design as I go... should be fun.
-Hans
Old Dec 09, 2004, 10:42 AM
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~Bart~
Keep us posted.
Old Dec 09, 2004, 11:31 AM
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April fools?
Old Dec 09, 2004, 11:42 AM
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You sick, sick man...... I love it!
Old Dec 09, 2004, 12:18 PM
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Good luck transporting it. Maybe you should build something a little smaller, like a 23ft plane.
Old Dec 09, 2004, 01:41 PM
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What are you going to brace the wing with? I'd imagine that even with ribs and a built up construction, a 24 foot wingspan will get really floppy and saggy. Maybe a combination of carbon struts and flying wires?
Old Dec 09, 2004, 01:45 PM
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Your going to need a lot of CDR motors

Seriously, what are you going to power it with?
Old Dec 09, 2004, 01:49 PM
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I'd have to see it to believe it


-Daniel
Old Dec 09, 2004, 02:07 PM
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stjobs- The wings are getting pretty strong. The spars are all glued up. It will have some sort of flying wires though.

intermision- I was seriously thinking about having a CD motor every 2 feet or so along the wing. It would sound sweet with 10-15 little 8 inch props going.

However, I think I'll try to build my own big brushless something...
It really doesn't need much power.
I have an 8 foot wingspan model of similar design flying on a single AXI 2808-24.

More pictures later today-
-Hans
Old Dec 09, 2004, 02:13 PM
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Quote:
Originally Posted by flybike
I have an 8 foot wingspan model of similar design flying on a single AXI 2808-24.


I'll believe you AFTER you post a pic of it.


-Daniel
Old Dec 09, 2004, 02:29 PM
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8 foot foamie with shockflyer for size reference
The new plane is the same shape, only 3 times bigger
Last edited by flybike; Dec 09, 2004 at 02:39 PM.


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