I just got done gluing my Aeroworks Edge 540 .46-.60 wing halves together. There isn't supposed to be any dihedral in the wing, so now that its glued, how can I check to make sure I glued it together right?

if its not suppose to be any does it lay flat?

a straight edge

I am not trying to sound rude but if you are advanced enough to fly an Edge then it seems you would know how to check for dihedral. If you hold one wing panel down flat on a level flat surface then the other wing panel should also lay flat. If you hold one panel down flat and the opposite panel rises up off of the flat surface then you have dihedral.

Since it is a tapered wing it should not lay flat.

lay one side flat on your table and measure the distance from the other wingtip to the table.

Then, flip it over and do the same thing.

If it is correct, the two measurements should be equal.

If they are not, don't sweat it. it'll fly just fine anyway

Yes you are right MinnFlyer. I forgot about the taper of the wing. If it was assemble as per the instructions then you are good to go. If you just glued it together and then just layed it on the table to dry then you might have problems

Flaminheli said:
Actually Flaminheli, the only reason you said that was to be RUDE or an ARSE...

with the power of a credit card and a phone call i would beg to differ in that deal. That is all of us a one time or another about anything[8D] 1 day off the buddy box and we all want to say watch this

Hey, this is the age of the ARF. Let's cut the guy some slack. Us older guys had to build what we flew and as a result, needed to know all these terms to understand the plans. Not so anymore. Most planes don't even have good manuals much less plans.

Minnflyer, very nice explanation and diagrams. Wish I could do that on my computer. I'm still learning to type.

No, I was not trying to be rude. Just about anyone can take a plane and leap it into the air and buzz around and do cool things with it without learning the basics of how and why a plane flys. I just feel that a person should learn how and why a plane flys before going full aerobatic.

Flamminheli, Im a aircraft mechanic in the Air Force and I rig flight controls. Would it be fair to say that if a pilot is advanced enough to fly a plane then should he not know how to fix his own plane?

MinnFlyer, I did measure both sides and they are equal distances so I should be good. Thanks for the info.

Nice point. Just look through the dirt. Most guys are ready and willing to help fellow flyers without feeling the need to make them feel stupid. Please keep asking those questions and we will do our best to help you have fun with this hobby. After all, isn't that what we all want here?

Ok guys, let's drop the subject.

Minn... My bad..forgot about the taper!

The last kit I built has a profile with no taper, so it wasn't in my head!!

Many times tapered wings will be flat across the top surface yet are said to have no dihedral when in fact, that would be a slight bit of dihedral. This is done to prevent the illusion of a drooped wing or anhedral when flying. Was very common in the old pattern days and had very little effect on how the plane flew. But it sure made the airplane more pleasant to look at in some flight attitudes .... especially landing. Many airplanes still do flat wings that same way today.

I was just looking at the wing on my 27% GP Edge 540 ARF. The top of the wing is flat - from tip - to - tip, but each wing half is tapered - thicker on the root end than at the tips. I don't know if you would call this dihedral or taper - well, I know it's taper, but I don't know if one would also call this dihedral. I guess it depends on how the manufacturer measures it - across the top or across the bottom.

As for an answer to your question about your Aeroworks Edge, I would refer to the instruction manual and see if it provides any info or measurements for dihedral. If not, maybe you could all their support dept. and ask. In the end though, considering the fact that there is probably only one way for you to glue the wings together, and if the center joint where the halves fit together is tight, I'd say you're probably fine. I guess there is the possibility that you may have installed the joiner upside-down, but unlikely because then the ends of the wings probably wouldn't have fit together correctly.

Yes Tim, this wing will have dihedral. Actual dihedral of any wing is measured through the centre line of the spar, root to tip.
Evan, WB, #12

Measure twice, cut once. There's little point to asking the question once you've let the glue set.

I did everything according to the manual correct, but I was still a little worried that there was a little dihedral in the wing. But going off of Minnflyers diagram my measurements are dead on. So I guess my wing is good to go.

oh yeah its time to finish and maiden that beast now