Just for the heck of it, I took the original Kwik Fli III 1/16" balsa sheeted foam wing that had been glassed with light cloth and supported the unbroken side at the root and at the very end of the wing tip with pillows. I stacked SIX 12 packs of Coke side by side in the center of the wing span. That’s close to 60 lbs! No problems. Can you imagine how much force UPS put on the wing to break it in shipment? With a fuselage weight of about five pounds I guess that would be about 11 + Gs.