RE: Q-500 Sheeted wings and foam cores for sale
I've been working hard all day and need a physical break, so I'm going to post a little documentation of the sheeting of a Super wing.
For all steps when I say a "pump" I mean one pump of WEST 105 resin and one pump of WEST 206 hardener which is a little under one ounce by volume.
* I mixed a pump of epoxy and drizzled it on a skin.
* Using a 3" foam roller I spread the epoxy on the skin.
* The skin with the epoxy on it plus 19" of 3/4 ounce cloth overlapped 1/2" in the middle.
* no photo - Mixed another pump and did the other skin.
* The skins with 2.5" of 1.4 ounce cloth on the trailing edge. Epoxy was lighly brushed where the laminate spars go. Then on top of the spars. Do it now so you don't forget and have no bond to the core, or hardwood spars.
* The bottom shuck with porous release film laying in it.
* The bottom skin laid in the shuck with the rear aligned with the rear of the shuck.
* No photo - Epoxy is brushed on the hardwood spar in the core on the bottom to make sure it sticks to the laminate.
* The core is laid in the shuck and release film is laid on top.
* no photo - The top shuck is placed on and the assembly is filpped over.
* no photo - The bottom shuck is aligned and T pins are inserted about 1" from the ends behind the laminate. Then every 6 to 8 inches. The assembly is flipped back over.
* The plywood insert is placed on the trailing edge. First a very light amount of epoxy is brushed where it will go. Then a light amount is brushed on it. Also brush some on the hardwood spar.
* no photo - The carbon fiber tow leading edge is wetted out with another pump and placed on the front of the bottom skin.
* no photo - The top skin is put in place, the release film, then the top shuck
* Pins are put in place to hold the top shuck and skin in place.
* A close up of the pins.
* The whole assembly is wrapped with paper towels to act as breather and it is placed in the vacuum bag.