Estes Phoenix Bird Build Part 5 Fin Prep

To allow for the Kevlar line tied below the upper centering ring, a notch was filed into the corner of the TTW fin tab.

I wanted the trailing edge of the fins to be even with the end of the mainframe tube.

With the fins in their slots, the trailing edges were above the rear of the tube.

The fin at the left is how it fit before trimming the rear of the TTW tab. The fin on the right was trimmed and is even with the end of the tube. 

The fin on the right shows how much balsa was trimmed away to allow the fin to slide down a bit to be even with the tube end.