Is it possible to have a warped wing on an ARF.
Thanks,
Pete

Sure, I've seen a couple but not a majority. How bad is it? You might be able to shrink the warp out if it's not too bad.

I had one on my DP extra. My right wing panel had a slight warp to it when you look down the leading edge. It was enough to bother me, so I fixed it. Since I had heard DP customer service was slow, I took it into my own hands. I tried to shrink the covering, put weights on it ect., no help. I finally did surgery! I stripped the ultracote, and fixed it right. Also found that panel was not as thick as the other! I finally have the airplane ready to go (just about), but I could have built a kit faster!

Yes it is . Before you shrink your covering check to see if you do have warp age. If you co a lot of it can be taken out when you shrink up the covering. I just put together a H9 Cessna 182 and one side had 1` degree wash in and the other had 1/2 degree wash out. When I was done one side had 1/4 wash out and the other 1/2 wash out which was great.

What's this??? Can it be??? Pete O flying PLANKS?????

Say it ain't so, brother!<G>

Steve

The lower wing set on my GP Tiger Moth came warped. After trying to weight it down flat and reshrink the covering I had to ship it back to Tower (Hobby Services).

I had a new wingset in a week. Of course I shipped it back UPS 2 day, and paid a little extra for them to ship the new wing UPS 2 day. All in all the service was good.

I always look at the wings and tail surfaces when opening a new ARF. I've passed up a few at hobby shops due to warps. Unfortunately this is an impossibility with shipped items, leading to the occasional disappointment.

The stabilizer on my first Sig Rascal Forty was warped as well, but I was able to take most of it out with the heat gun while pressed flat on the workbench. Still a slight warp to it, but heck, it's just a Rascal, and it flies great.

Good luck,

Dave

If you'd email your address, I could respond to your comments, you old Fart, you
Mine email is [email protected]

Thanks guy's for the fast responses. I'm actually doing this for a friend. I told him his plank has a warped wing/etc. which is why his ARF flies funny. He thinks ARF's can't have a warped wing or stab/elevator/etc. Go figure
Thanks again for the suggestions.....
Pete

How can you tell when a wing is warped as far as flight characteristics.

Well actually, there are many things to consider. How the plane will react would depend on if it is a high wing, low wing, mid wing, whether the Stab is above, mid, or below the centerline, if the ailerons are strip or full length, and if they are sealed or not, or if it’s a biplane. Also, you would need to determine where the warp is, and its direction, either up or down.
What I suggest is either read a book on the subject and learn yourself, or ask a good pilot with many years of fixed wing, glider, controline and helicopter experience. The latter would save you a lot of time and effort.
If you like, I have 45+ years of experience in all of the above fields, and as a multi magazine helicopter columnist, would be able to help you if you need it.
Pete

Also, it is always possible that the aileron linkage is not linear, which can also make the plane seem like it has a warp in it. Either way, the flights characteristics would be odd and not symmetrical, and the trained eye of a good pilot can point it out to the untrained eye of a beginner.
Hope this helps,
Pete