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Author Topic: Warped wing  (Read 1678 times)

Offline cory colquhoun

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Warped wing
« on: July 01, 2017, 04:29:36 AM »
Anybody get any tips on how to straighten trailing edge,the trailing edge on the inboard wing of my  newly built twister slightly bows  , not covered yet
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Offline RC Storick

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Re: Warped wing
« Reply #1 on: July 01, 2017, 05:02:53 AM »
Steam it straight
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Offline Dennis Moritz

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Re: Warped wing
« Reply #2 on: July 01, 2017, 12:27:56 PM »
Steam it straight. Make longitudinal (lengthwise) exacto cuts. Lock straight with thin CA in cuts.


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Offline cory colquhoun

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Re: Warped wing
« Reply #3 on: July 01, 2017, 01:07:09 PM »
Ok, will give it a go, thanks
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Offline RC Storick

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Re: Warped wing
« Reply #4 on: July 01, 2017, 01:07:44 PM »
Quote from: Dennis Moritz on July 01, 2017, 12:27:56 PM
Steam it straight. Make longitudinal (lengthwise) exacto cuts. Lock straight with thin CA in cuts.


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No need for any cuts just a lot of steam and it will get loose, Then warp past the spot you need it and it will relax close to right shape. Steam as many times as needed.
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Offline Mike Griffin

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Re: Warped wing
« Reply #5 on: July 01, 2017, 03:57:17 PM »
A tea kettle works great for steaming. 

Mike
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Offline Dennis Moritz

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Warped wing
« Reply #6 on: July 01, 2017, 04:27:23 PM »
Right. Warp in opposite direction with steam. In my experience wood returns to previous shape after a time. Some method of locking wing straight helps. Monokote and the like will allow shape to lock pretty solid. Some combat fliers are great getting monokote wings to warp straight. Phil Cartier did his magic on something I built. Wing stayed true for years.


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Offline cory colquhoun

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Re: Warped wing
« Reply #7 on: July 01, 2017, 05:23:20 PM »
I used Pva glue will this be affected by the steam?
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Offline Dennis Moritz

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Re: Warped wing
« Reply #8 on: July 01, 2017, 08:24:38 PM »
White glue yellow glue any of the wood glues will soften when heat is applied. Then harden again when cooled. Probably those characteristics will assist warp removal.


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Offline Tim Wescott

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Re: Warped wing
« Reply #9 on: July 01, 2017, 08:32:15 PM »
OK.  Everything that's been said is absolutely true, BUT:

1: I would only do the longitudinal cuts and re-gluing if things were really bad and the application of heat did not work, and
2: If the warp isn't bad, sometimes dry heat (like a heat gun) works well -- I find it more convenient

The best solution is to go back in time and smack yourself upside the head before you build in a warp, but no one has figured out how to do that, yet.
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Offline cory colquhoun

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Re: Warped wing
« Reply #10 on: July 01, 2017, 11:03:08 PM »
Warp was only slight and boilling kettle did the trick, it is straight for now ,best cover it and hope it stays that way


 Cory
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Offline RC Storick

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Re: Warped wing
« Reply #11 on: July 02, 2017, 01:39:17 AM »
Quote from: cory colquhoun on July 01, 2017, 11:03:08 PM
Warp was only slight and boilling kettle did the trick, it is straight for now ,best cover it and hope it stays that way


 Cory

It works even after covered. So no worries.
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Offline Dennis Moritz

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Warped wing
« Reply #12 on: July 02, 2017, 08:36:36 AM »
Great. What kind of covering?


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Offline RC Storick

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Re: Warped wing
« Reply #13 on: July 02, 2017, 02:08:50 PM »
Quote from: Dennis Moritz on July 02, 2017, 08:36:36 AM
Great. What kind of covering?
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Any kind! You can steam a 4x4 with enough steam. It works on foam wings, silk covering, polyspan, silkspan, plywood Just the degree of heat needed.
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Offline cory colquhoun

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Re: Warped wing
« Reply #14 on: July 02, 2017, 11:56:31 PM »
Quote from: Dennis Moritz on July 02, 2017, 08:36:36 AM
Great. What kind of covering?


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