This will be my first attempt at sheeting a wing, a foam core one. What do you all recommend i glue the 4"x48" sheeting together with i've read that CA is fine some say Titebond wood glue is better So far the plan is to save weight so the sheeted wings will be covered in Ultracote instead of fiberglass

after im done making the wing skins i plan on using gorilla glue to glue them to the foam cores

Download the manual for the Top Flite P-47 Gold Edition, in it they describe 2 different methods that work well. One is using resin glue, the other a method for Ca. I have tried them both, the Aliphatic Resin glue gets my vote because the joint sands better than the CA joint. They give step by step instructions in the manual.

thanks ill do that

Aliphatic resin it is... thank you for the tip thee is a link to the manual incase anyone is interested


http://manuals.hobbico.com/top/topa0135-manual-v2_1.pdf (doesnt work)

http://www.top-flite.com/manuals/index.html

Get some 2 inch masking tape.
Lay up the sheets and push the edges together. \ 4 hands or lots of pins.
Apply tape over the join line.
Push sheet to edge of table so one piece of sheet is over the edge [ 90 degrees ] opening up the joint line.
Apply Testors aliphatic white glue TITEBOND?
Pull the sheeting back onto table.
Wipe off excess glue with a damp rag.
Hold down sheeting with weights or pins

If you need to do multiple sheets you can easily do this in one go. Just get everything taped up in advance.

Works for me!

I could not get the link to work for me. Has anyone else tried it?

this is where i found it http://www.top-flite.com/manuals/index.html

sounds like fun, thanks for the tips

While you never asked the question, I would like to offer one more tip for you. Gorilla glue being an expander may or may not be a good choice - I do not know.
However here is a method, if you have the time, that will give you a sheeted wing that results in a well glued wing skin. I have used it for many years on both balsa and 1/64 plywood. Never a bump.

Prepare the wing skins however you prefer. I have used a SMALL amount of thin CA in spots on the wing side just to get the balsa skin together as the attachment method really glues the skins together. Whatever you prefer will work.

Mix any of the carpenter's alphetic resin off-white glues with water 50-50.

Brush the mix on both surfaces, wing and skin. Assure full coverage. Lay the skins on the core.

Place the wing and skins back into the foam cradles from which the wing was cut. Place on a FLAT surface. Make final adjustments of the skins to be in place.

Place every magazine, phone book or such weight you can find on the foam. Don't crush things but a LOT of weight is needed.

After two days, remove weights and look at the ugliest balsa, black-like stains from the moisture, you will ever see. Let the wing dry out for overnight. Replace the weights and let things set for 3 or more days.

Now you will have a constantly glued skin and most of the ugly will be gone. After another couple days of drying it will all disappear. I have never had a wing develop a bubble even after in a hot sun all day.

Good luck.

I use a Dave Brown's productcalled Southern Sorghum. Doesn't take daysdoesn't leave the ugly's and stays put. I cut my own wing cores and I have used it ofter, never a failure.

Hi!
Here is my tip from doing many airplanes!

The best way of starting is to tape the balsa sheets together! Ca is not that good and neither is using Aliphatic glue! Why? Because you get a hard rim of glue that must be sanded down once the planking or wing sheeting is done, which is rather hard to do. Using just tape makes the balsa joint invisible.

Second! What glue to use???
The best way of planking a foam wing is to use either 24 hour epoxy resin (not the hobby epoxy glue variety you get in the hobby shops ...but professional 24 hour laminating epoxy...or to use Poly-urethan glue (Gorilla glue to you Americans).

When using these two types you must have the scrap foam material as a bottom and top layers in which the wing core is secured together with the balsa sheets.
Heavy iron clamps and thick board material (60mm-80mm) is then used to really clamp everything together.

I do not recommend Dave Brown Southern Sorgum contact glue or any aliphatic or white glue as these glues cannot be used in the above manner!
When using those you just let them dry before you roll em onto the foam wing...which is not a good method to use if you want a straight wing! Even if it could be done...

Well I have to disagree some with you about a straight wing. Once the Sorgum is applied to both surfaces and allowed to dry, you use a sheet of paper and lay between the foam and the skin. Once you have everything lined up the way you want it, then start removing the paper and laying the skin on the foam. It is normally a rolling action. Never had a wing that was warped as a result of this process. If you are just trying to slap the skin on, Lords know what might happen. It is like the food ad "try it, you'll like it"

i have used spray glue for years, no problems

Titebond III worked like a charm ....thanks for all the suggestions