Estes Semi-Scale Saturn V, Kit #K-39, Part 29, The Clear Fins

I remember attaching clear plastic fins on the old Thor Agena B and Gemini Titan kits. They were never a strong hold, often popping off at the root edge on landing.

The instructions call for clear dope to attach the fins. 

With the way this build is going, I'm not ordering any expensive "adhesive".

Beacon Fabri-Tac has acetone and should be able to hold tight enough. A bead of Fabri-tac was applied down the root edge tab.

In addition to the Fabri-tac, I ran some medium super glue applied with a toothpick.

Squeeze a drop on scrap cardboard - 

Dip the toothpick tip in the drop of glue - 

Run the toothpick tip down the root edge spreading the glue in a controlled line.

Another concern - while the tab fit well into the slot,

there is a visible gap down the fairing.

I could spend time making the fin fit better, but with all the other problems with this build, I'm not going to bother!