RC-Captain

Does any body have an idea on how to convert a dehidral wing to a flat wing . I don't want to do to much constuction so the easiest method will be appreciated Thanks.

Tall Paul

First, is the wing already built?

RC-Captain

Yes ,it is a megatech airstrike.

Tall Paul

I have no idea what that might be.
How about actually the describing the wing... its construction.

exeter_acres

My Feedback: (2)

If it is a built up balsa.....

Cut it in half with a table saw or similar....

place them together on a flat surface and in a straight line..... build small wood "V" to fill gap,
start pouring in epoxy...

Thats how I did it on my LT-40



Edit! I just read that that plane is mostly ABS plastic..... I could be wrong, but I doubt you could do it with ABS....
I suppose you could, but I'm not sure how?

RC-Captain

Thanks exeter, but I was hoping to make the wing a take apart wing. I thinking, maybe I can by a wing with the same dimensions. Most trainers use the same size wing.

FLYBOY

My Feedback: (11)

If you don't want to do much building, then leave it as is. If you are going to modify the center section, its going to be pretty deep surgery. Would be easier to scratch build a new wing. Could be done in short order. The other option is to buy a wing kit off of one of these trainer type ARFs and build it flat if it is the same basic flat bottom wing trainer birds.

jaka

Hi!
Is that one of the "Toy airplanes" with foam wings?? If it is it...it would be harder to fly with straight wings, if at all possible.

Regards!
Jan K
Sweden

RC-Captain

No it isn't foam, and your statement is somewhat false. It would be harder to keep a plane stable with no dehedral but as far as flying , all of the techniques for flying a dihedral winged plane apply to a flat winged plane.

I agree , but the word I should have use was alteration. If I find a flat wing that I can buy as a kit then I'm golden. To build a wing and cover it is a sinch for me.

jaka

Hi!
Hmm! Have you tried flying/turning an highwinged airplane with no dihedral with just side rudder??

Jan K

britbrat

Yes -- they carve (skid) a large circle. They also do a nice knife edge. Since turns are supposed to be coordinated (rudder & aileron) I don't see the problem.

RC-Captain

I'm not sure what you are getting at but , no. I haven't flown a flat winged glow plane yet, only electric.

britbrat

I think that he is referring to the possible loss of positive roll couple, if you remove all of the dihedral. High-wing types with dihedral invariably exhibit a positive roll couple upon rudder application -- the plane will bank into the turn (proverse roll) without aileron input. This behaviour, which is intentionally designed into RC trainers, will be muted or eliminated if you remove the dihedral. The loss of positive roll couple is not a problem -- in fact it is desirable if you are looking for enhanced aerobatic capability-- it makes knife-edge maneuvers very much easier. There may (or may not) be some adverse yaw resulting from such a modification -- again not a problem -- that's what ailerons & rudders are for.

RC-Captain

Can you say that in plane (plain) english ? I understand with out dehidral if I use the tail to bank the plane right the nose will almost drop immediately, or will it take longer for the nose to drop I can't think right now its Friday and I'm two beers buzzing .