Apogee Heli-Roc Build Part 9 Fins and Launch Lug

The fins are glued in place, 1/2" from the rear of the BT-5 tube.

Here again a square piece of paper was taped around the tube to be sure all the fins are at the same height. Using a paper guide like this helps when the fins aren't glued even with the base of the body tube.

A launch rod was set beside the two launch lugs for alignment. Sometimes I'll run the rod through the lugs.

Either way, lightly tape the rod to the body tube.

Lug position is critical on this rocket. You can see how the rod passes right beside the balsa reinforcement strip.