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Old Jan 27, 2002, 04:30 PM
Richard Hayes is offline
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help! How do I shape the front wing for the "and now' plane


Hi Guys: I'm new to the foamy plane construction. How in the world do I go about putting a curve in the BlueCor of the front wing of my And Now plane? I read another thread that talked about putting the wing into the oven? The wing won't fit the oven of my stove. Even if it did he didn't mention the temperatue used or how you bend it when it is hot. Any help would be appreciated. Thanks
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Old Jan 27, 2002, 04:49 PM
DBCherry is offline
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Richard,
Haven't done it myself but, seems I read a thread on it.

Try this: use the rounded edge (or side) of your bath tub, and a covering iron or blow dryer. Slowly heat the foam while forming it over the rounded edge.

Be careful and heat it slowly.

Try doing a "Search" on the "And Now", I'm surre you'll find the thread.
Old Jan 27, 2002, 08:20 PM
Richard Hayes is offline
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Thanks for the input.

Regards

Dick
Old Jan 27, 2002, 10:11 PM
Gene Bond is offline
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The way that works for me is to first peel the skin off both sides. I know it's a pain, but it's a lot easier to bend once it's done. the skin must be virtually melted before you can bend it.

Then, use a heat gun. Hair dryer may work, but I know a good heat gun does. Keep moving it along the center of the bottom of the wing, where you want to bend it, while holding the trailing edge in your hand, and moving with the heat, as you lift the back, and press the front down onto the work surface. You can see the foam just start to melt as it wants to bend.

Alternatively, you can try bending it over an edge while heating the top, but I like to keep the top of the wing un-blemished, so I heat from the bottom.

The more of them you do, the better you get. Don't worry, the wing is only about $.50, so what if you waste one?

Use Tape on the Leading edge once you have sanded the edges round.

Here's my plans page: http://www.geocities.com/genebond/

Here's my pictures: http://photos.yahoo.com/genebond

Have fun!
Last edited by Gene Bond; Jan 27, 2002 at 10:14 PM.
Old Jan 28, 2002, 01:18 AM
Hippo is online now
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The effect is sadly temporary
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I'm the wing baker.


Hi,

I'm the guy who was making bluecor wings in the oven. I have a wooden jig that I clamp the foam into while it's being heated. It goes in at 200 degrees F for 20 minutes (it takes a long time for the wood to heat up), and then I let it cool for 15 minutes before unclamping it. Check out the original thread. There are pictures of the Jig on page 2.

http://216.40.226.212/~admin2/forums...threadid=23929

I was only doing this for single sheet slowflyer wings. For anything with a spar or ribs, I wouldn't bother with heat. For the tiny, I'd just peel the skin from the inside layer only. Get a rolling pin, or 3/4" dowel and roll out the peeled side. The foam should bend easily toward that side now. Just work the shape til it's close, and then glue it onto the ribs. I like the 3M-77 contact cement so that I don't have to clamp or hold anything.

I hope it helps,
-Dan
Old Jan 28, 2002, 01:46 AM
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blucor?


Why not use depron sturdyboard for the plane.
We don't roll the leading edge at all on our and_now's.
Any bending we do is by hand without heat.
Heating the stuff makes it contract and "bunch up".
The wing shape is maintained by flat-bottomed ribs 9mm tall.

Build it per the plans at http://www.flyelectric.ukgateway.net/indoor.htm
except use carbon for the fuselage and pushrods and throw an M1 motor on it, it will become your favorite plane.

I always keep one in the back seat of my truck, I haven't flown any of my other planes in ages.

SC
Old Jan 28, 2002, 11:11 AM
hoppy is offline
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Here's another version....
http://geocities.com/hoppyfl/

I used to worry about the shape a lot but what the heck, if they will fly inverted with an open bottomed wing, how critical can it be?? I use a paint stripper heat gun (B&D), they get much hotter than a hair dryer. If the hair dryer works, I'd use that. You have to be careful with the paint stripper gun as it can melt the plastic if you don't keep it moving and only use it for short time periods. The bathtub "form" sounds like a good idea. I'll have to try that myself.
hoppy
Old Jan 28, 2002, 11:57 AM
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This is what I did 10 months ago on my MeatStik for my wing:
http://home.att.net/~p.blakeslee/meat-stik/P6020082.jpg
http://home.att.net/~p.blakeslee/meat-stik/P6020084.jpg

I also built up a wing by sandwiching layered sizes of foam between two sheets that were cord-size in another plane 2 months ago.
http://home.att.net/~p.blakeslee/PB190326.jpg
http://home.att.net/~p.blakeslee/PB190330.jpg

Pullin'
Old Feb 01, 2002, 04:49 PM
Richard Hayes is offline
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Hi: Thanks for the input on bending the front wing for the AndNow sure nice having you guys around. Hope I can do the same some time :-)

Regards
Old Feb 01, 2002, 06:07 PM
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I am the worlds worst at using heat. I finally gave up and just bend the stuff with my hands or with a ruler. On large wings, I cut foam to the airfoil shape and epoxy to the underside of the wing. Works fine. On small wings, I just bend and go. Works for me. I just got back from flying the miniz. It has no supports for the wings and they hold their shape fine.


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