Theta 13 Aerospace Speciality Products Page 6
2" Mark on
Body Tube
Launch Lug
Fin
Fillet
Body
!
Tube
Figure M
Figure N
⎕
7) After the glue is completely dry, apply a small amount of glue to the joint between the root edge
of one of the fins and the body tube. Smooth the glue with your finger to form a small, smooth fillet
and remove any excess glue (see Figure N). Continue to add fillets to all the fins. Allow the model to
rest horizontally while the glue dries on each set of fins. The fillets will strengthen the fin attachment.
Apply fillets to the launch lug as well and allow to dry.
⎕
8) See Figure O for this step. Locate the balsa nose cone and the metal screw eye. Test fit the
shoulder of the nose cone into the top end of the white body tube - sand the shoulder if needed for a
smooth fit.
Thread the screw eye into the center of the bottom of the nose cone. Remove the screw eye and put
some glue into the hole in the base of the nose cone and thread the screw eye back in and allow to
dry. Firmly tie the loose end of the Kevlar® shock cord to the screw eye.
Screw Eye
Shoulder
Nose Cone
Tape
Shock Cord
Tape
Figure O
Figure P
⎕
9) R
efer to Figure P as needed for this step.
Locate the plastic streamer material. Lay the shock
cord over the streamer about 3" from the screw eye. The cord should be about 1" from one end of the
streamer. Firmly tape the shock cord to the streamer. Next fold the short piece of the streamer back
over the shock cord and apply another piece of tape to tape the streamer to itself.
Fold the streamer in half lengthwise. Fold in half again two or three more times then roll the streamer
into a small cylinder. Wrap some of the shock cord around the streamer to hold the streamer into a
