2.2.1 Left Wing Skin Preparations

As mentioned in the sidebar to the right, getting the surface of the wing as flat and smooth as possible ended up being a much longer process than I thought it would.  It’s amazing how much Micro is needed to fill in the cracks!  And once that’s finally finished, then I started to sand and fill and sand and fill and sand and fill, etc.  Again, the goal is to get the surface as flat and smooth as possible.  Any final little bumps or irregularities will be taken care of in the next step when I cover all of the foam with an EZ-Poxy slurry.  The fiberglass needs that kind of surface in order to make sure it’s going to stick properly.

Final Wing Sanding (1)

Left bottom wing filling and sanding is finally complete!

I marked up the surface a lot with a Sharpie to help locate the high and low points as well as the areas that needed more fill.  And the exciting part is that this is only the bottom surface of the left wing!  I get to do the same thing eventually to the top surface as well as both surfaces of the right wing!  The shot below is a closeup of an area that was filled and sanded a number of times before it was finished!

Marked Fill Points (1)

All of those markings are areas that needed to be filled in. It's kinda like doing drywall! Eventually all of the marks get covered with fiberglass, epoxy and paint!

It may not look flat and smooth, but it is!  The next step before glassing this side of the wing is to glue on the two ribs - one on the inboard leading edge and the other on the inboard training edge.  An explanation of the process follows on the next page.

ui© John Trautschold 2018