The original installation had a flat piece of metal at the junction of the fuselage and the wing root. I've started to remove the piece of metal at the leading edge, but you can see how it just wrapped around the wing.

I decided I wanted a "swoopier" fairing like some of the guys are putting on their RVs. Nobody makes one--as far as I know--for the Midget Mustang so I decided to try my hand at fiberglass work.

This was my first attempt at composites so keep the snickering to yourselves!.

I could imagine that this process could get messy, so I covered the nearby wing and fuselage aluminum with clear shelf paper. As it turns out, I really like the shelf paper for this application. It's just sticky enough to stay in place and it's slick enough that the resin will release from it. I know some people use clear packing tape for this kind of stuff--which I ended up doing, too for some things--but the clear packing tape leaves more glue residue than this stuff.

The next step was laying in modeling clay in the shape of my new wing root fairing. As you might guess, this is much easier said than done. The first thing I learned is that there are two vastly different varieties of modeling clay--oil based and water based. I first applied water-based clay. I went to ridiculous lengths to get it just perfect. When I came back to the hangar the next morning, it had hardened and cracked like a desert floor. Very bad. Oops.

I then discovered oil-based modeling clay. It doesn't dry out. The downside to this oil-based stuff is that it's fairly expensive. I'd guess I've got at least $80 invested in just clay!

to help me shape the radius, I used a combination of a round disc of aluminum and a big marble ball. I bought the marble ball from Michael's (craft store) of all places. I guess people are using these big marble balls as room decorations (a/k/a 'dust collectors' for us single guys).

I was pretty happy with the final shape. This is the leading edge of the wing.

Once the clay was in place, I painted the mold with PVA mold release. It's available from Aircraft Spruce and comes in quart bottles. You can either brush it on or spray it. I brushed this on, but discovered later how easy it is to spray using an old Harbor Freight touch-up gun that was collecting dust in the back of my toolbox.

Not a great picture, but I guess it gets the point across...

I cut strips of 6oz. fiberglass and wetted them out on a UHMW sheet of plastic on my workbench. I then took these wetted out pieces of fiberglass and layed them on my clay mold.