Custom Solar Explorer Build Part 16 Fin Gluing

The fins are glued 3/8" from the front and rear of the BT-55 section.
A straight strip of masking tape was set down at the 3/8" mark for position of the front leading edges.

The front and rear of the fin root edge was used to mark the gluing surface on the BT-55 section. This area will have to be sanded to remove the primer making a better gluing surface.

Here I'm sanding off the primer and pencil line between the front and rear tick marks.
Sand a strip just wide enough to glue the fin on and apply fillets.