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Post by ace1726 on Jul 16, 2007 23:41:42 GMT 1
Did anyone flatten their wing while doing the aileron mod?  I am getting ready to do it, but was wondering if anyone had done so... If you leave the dihedral, doesn't that negate the point of doing the mod??? It will still want to self correct??? Anyways, I am kicking around some ideas as to how I will flatten the wing.. Any thoughts??? |
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surjer
Squadron leader
Posts: 168
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Post by surjer on Jul 17, 2007 1:10:14 GMT 1
As I understand it the more of the Dihedral you take out of the wing the better it will role but the less it will self correct. There have been a few tips on how to remove dihedral such as setting a book on the wing upside down and leaving it set for a day. Also you could lay it upside down on a table and tape it flatter. It really depends on what you want out of it. The less the dihedral the more it will role and the more you will have to use a little up elevator in your turns... hth
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Post by duck9191 on Jul 17, 2007 5:22:31 GMT 1
when i taped my wing it was on the ground and i was pushing down some, so i took a little out of the wing. wasn't too noticeable just, doesn't center by its self as well which was fine
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Post by f4usupercub on Jul 20, 2007 16:04:31 GMT 1
All of the dihedral should be removed for the most effective ailerons.
A book can be a hit or miss method of removing dihedral and usually won't take but a little of the dihedral out and even then the wing can sometimes be uneven.
Use the existing plastic struts to remove all of the dihedral for a perfectly level wing.
1. Remove the screw that connects each of the struts to the fuselage.
2. Turn the plane with the attached wing upside down on a flat surface.
3. Gently press on the bottom of the plane in order to straighten/flatten the wing while pulling the play out of each of the struts.
4. Place a mark on each strut where it intersects with each of the pre-existing strut attachment screw holes on the fuselage.
5. Drill a small screw hole at each mark in the struts and reattach the struts to the fuselage.
6. Cut off the excess length of strut.
You are essentially using the struts to pull the dihedral out of the wing.
If you are very precise you can end up with a perfectly straight wing.
Also note that a SC with a perfectly level wing (0 dihedral) is not nearly so forgiving and is not for everybody.
If you feel you've advanced enough, have at it, but be ready for a very different-flying plane.
Best Regards,
Rod J
North Carolina
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Post by ace1726 on Jul 21, 2007 1:26:30 GMT 1
Actually, I just flattened the wing. like there is NO dihedral. This on my second cub. (Ailerons,BL,etc) So I will have to actually fly this one. I can't wait to try it out.
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bearweasel
Flying officer
illegitimus non carburundum
Posts: 25
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Post by bearweasel on Aug 24, 2007 4:44:07 GMT 1
All real training aircraft have dihedral and ailerons. More dihedral = more self-righting. Technically, you can put ailerons on ANYTHING, but with too much dihedral, they become ineffective. That's not the case with our Cubs. It has some dihedral, but not enough to negate ailerons. Just my $.02.
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zeta30
Squadron leader
Posts: 162
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Post by zeta30 on Oct 28, 2007 0:41:16 GMT 1
I just did an aileron upgrade today and removed almost all of the dihedral and did a test flight.
Removing the dihedral made a huge difference on how the SC flies. It won't correct itself when you start to make a turn, which is what the above posts pointed out is normal. Barrel rolls are super easy and inverted flying is much easier.
I think this will make a perfect aileron trainer to take me to the next level and next plane.
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I am getting ready to do it, but was wondering if anyone had done so... If you leave the dihedral, doesn't that negate the point of doing the mod??? It will still want to self correct??? Anyways, I am kicking around some ideas as to how I will flatten the wing.. Any thoughts???
