Project: MattJ     -     Entry

Oct 31, 2020 21.5 Wing Tips Category: Wings
11/01/202

Fitted the wing tips along with the other wing work these last couple weeks. There is a requirement that the edge of the composite tips line up with the edge of the flange of the outer rib. Sometime when fitting this edge would slip over that edge so I decided to epoxy some small plastic "L" shape inserts to provide positive alignment.

I also wasn't satisfied with the dent I previously tried to get out so I gave it another go with much better results.

The tip lights pigtails were lengthened and Deutsch connectors assembled.

An aluminum backing strip was attached to the inside of the composite to add some strength when riveting. A rivet "hole finder" proved to be an especially useful to for drilling the aft rivet holes in the composite. Both tips seemed to be aligned nicely in the transition from the wing to the tips.

6/26/202

Fitted wing tips and found to be miss shaped. The indent in one wing was heated and I will fill after the tip is attached to the wing. The tips are compressed so as to not sit against the skin for rivet alignment. Styrofoam was cut and placed inside the tips and heated in an attempt to reshape.

6/30/20

Fitted the rivnuts for the combination Strobe/Position light. I need to lengthen the pigtail from the strobe due to the curve of the "winglet"


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