Warped sheeted foam  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       



All Forums >> RC Airplanes >> Tips & Techniques >> Warped sheeted foam Page: [1]

Login
Message << Older Topic   Newer Topic >>
Warped sheeted foam - 6/27/2003 12:39:10 AM   
lnorris


 

Posts: 612
Joined: 1/31/2002
From: Oklahoma
Status: offline 		Anybody know how you can un-warp or un-bow a wing that is sheeted foam?

_____________________________

If you aren't breaking something, you're not trying hard enough...
       Post #: 1

Warped sheeted foam - 6/27/2003 1:03:39 AM   
MinnFlyer



Posts: 19974
Joined: 4/22/2002
From: Willmar, MN, USA
Status: offline 		Ewwwwwww!

Do you have the original blocks that the foam cores were cut from?

_____________________________

Mike B.
AMA# 42400 www.gettingairborne.com

"Those are my principles. If you don't like them, I have others." - Groucho Marx

(in reply to lnorris)
       Post #: 2

Warped sheeted foam - 6/27/2003 1:11:28 AM   
lnorris


 

Posts: 612
Joined: 1/31/2002
From: Oklahoma
Status: offline 		Well, I'm looking at buying a plane to build that comes with pre-sheet foam wings. I do believe they come wrapped in the foam block though that they are cut out of.

I'm just a bit concerned as some people have reported their wings as having a bit of bow in them so I was wondering if there was a way to fix this if caught.

_____________________________

If you aren't breaking something, you're not trying hard enough...

(in reply to lnorris)
       Post #: 3

Warped sheeted foam - 6/27/2003 2:17:49 AM   
flianbrian



Posts: 329
Joined: 3/21/2002
From: Suthrun, IL, USA
Status: offline 		Don't know the fix for an actual warp, but watch for wings with a built-in wash-out (twist) which you would not want to remove.

(in reply to lnorris)
       Post #: 4

Warped sheeted foam - 6/27/2003 3:10:53 AM   
FLYBOY



Posts: 8692
Joined: 1/7/2002
From: Missoula, MT, USA
Status: offline 		If it is a new kit and the wing comes pre-sheeted and is warped, I would tell them to replace it. They should.

_____________________________

Fly it till the wings come off.

(in reply to lnorris)
       Post #: 5

Warped sheeted foam - 6/27/2003 12:01:41 PM   
steve-kerry


 

Posts: 106
Joined: 1/26/2003
From: Hull, UNITED KINGDOM
Status: offline 		If you are talking about a warp (twist) in a sheeted wing, there is one thing you can try. Make a series of parallel slits in the sheeting, from root to tip, using a NEW blade. The wing will lose all resistance to twisting. Block the wing to whatever twist it is meant to have (remember the washout!) and squirt some very thin glue into the slits. Aliphatic resin is good for this, don't use regular CA on a foam core! When it sets, the wing should retain whatever twist you put into it.

This is mainly used to remove unwanted warps from wings that have been stored over winter, but there is no reason why it won't work on new wings as well. Obviously it works better on balsa sheeted wings than obechi sheeted, and you will still be left with a series of slits and glue ridges that need to be carefully sanded smooth. But it is a lot easier than replacing a warped wing.

(in reply to lnorris)
       Post #: 6

Warped sheeted foam - 6/28/2003 1:49:54 AM   
Strat2003


 

Posts: 618
Joined: 3/9/2003
From: Mt. Pleasant, OH, AFGHANISTAN
Status: offline 		Don Lowe recomended a method similar to Steve's in RCM several years ago, using a single diagonal slit on top and bottom, in an "X" orientation.

(in reply to lnorris)
       Post #: 7

Page:   [1]
All Forums >> RC Airplanes >> Tips & Techniques >> Warped sheeted foam
Page: [1]





Jump to:


Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Member Video Posts | RCU Video Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

Kaango.com Classifieds

1.750RCU3