Wood Glue
Mark coupler
at 2”
Put glue on the coupler
and then slide it into place
stopping at the mark you made
Payload tube
Tape
15. Apply glue to the root edges of one of the fins,
including on the base of the tab. To prevent dripping
allow the glue to dry slightly for a few minutes until
tacky. Then press the fins through the slots in the body
tube and rest them firmly against the motor mount in-
side. Allow them time to dry and then repeat this for the
remaining fins. You can temporarily insert the booster
stage into the rear of the sustainer stage in order to
visually align both sets of fins.
16. Strengthen fins with fillets by applying a bead of
wood glue to both sides of each fin-body tube joints.
Pull your finger along the joints to smooth out and re-
move the excess glue. Lay the tubes horizontally while
the glue dries. Repeat this process for all 6 fins.
17. Attach the launch lug with glue. Position it on the
rectangular hole located on the
Sustainer Tube
. After
the glue has dried, apply fillets of glue along both sides
of the launch lug.
18. Apply glue to the threads of the metal screw eye,
and screw it into the plywood bulkhead. Do not twist
it in past the threads on the screw eye. Apply glue to
both sides of the bulkhead where it exits the hole.
19. Glue the bulkhead into the
red tube coupler
(without the holes). Recess it slightly into the end of the
tube. When the glue has dried, put a fillet of glue on
both sides of the bulkhead.
20. Draw a line 2” (51mm) from the end of the coupler
(with the bulkhead) with a pencil as shown. Smear a
small amount of glue on the inside edge of the payload
tube. With one quick and smooth motion, slide the tube
coupler into the body tube until the pencil line is just in-
side the tube. Wipe off any excess glue that oozes out.
Be sure the tubes are aligned straight with each other.
21. Apply masking tape to the outside of the shoulder
of the nose cone to achieve a tight fit into the payload
tube.
Apply wood glue
on both sides
Sustainer stage
tube
Launch lug
Place wood glue
fillet around the edges
Step 17
Step 18
Step 19
Step 20
Step 21
Step 22
Step 23
Step 25
Glue here
Inside of
tube
Step 15
Step 16
Page 4
22. Cut out the plastic parachute with a pair of scissors.
23. Place the ring tabs over the circles on each of the
points of the parachute, as shown in the illustration.
Next, poke holes in the center of the rings with a sharp-
ened pencil.
24. Find the shroud line and cut the string into four
equal lengths and tie them through the ring holes as
shown. Put a little bit of glue on the knots to secure
them in place. Allow the glue to dry.
Parachute Assembly
