
The red trim tape is cut using the cardstock template.
Set the tape down the lines and cut with a new blade.
You are supplied with some extra red trim tape.

I set down a wrap of masking tape for easier alignment and to make sure the red trim ends meet.
The short BT-20 tubes get a wrap of red trim. Note the three wraps don't go from the fin fillet joint, around the tube to the other fin fillet. It seems short.
The short BT-20 tubes get a wrap of red trim. Note the three wraps don't go from the fin fillet joint, around the tube to the other fin fillet. It seems short.
I marked the masking tape strip at the center with pencil. The red strip was also pencil marked at the center.
Set the red tape center over the mark on the tape and roll the ends around the tube.
The red strip was set down in line against the brown tape with the low end just a little beyond the curved trailing edge.
Carefully trim the red tape overhang that extends beyond the trailing edge to match the fin curve. Cut only the red trim, don't cut into the balsa fin.






















