New Way Nike Ajax Build, Part 11, Lower Fins Gluing

TIP: I like to line up the engine hook and launch lug positions.

When launching, set the launch lug to the back side of the model for better photos from the front. This also allows you to bend the igniter (starter) wires forward away from the launch rod and engine hook.

 

Viewed from the rear, 

This is how the fins line up - three on the booster, four fins on the "main stage". (It is a single stage model.)

The instruction explanation is a bit confusing, just keep this view in mind and you can figure it out.

The pressure sensitive (sticky back) ring goes around the BT-55 lower tube at 2 3/8" from the bottom.

Start and finish the wrap at a fin position. Cut off the excess. This joint will be covered by a fin.

Note I used a wrap of tape for an edge guide to insure a straight wrap and the ends would meet up.

With the trailing edge of the fin even with the end of the body tube, mark the notch position. 

Cut a very shallow notch with a sharp knife. You don't have to go very deep with the cut.

The gray primer/filler was scraped away for a better glue bond. After scraping away the primer, you'll have to redraw the pencil lines for the fin alignment.