Apogee Payload Altitude Rocket Build, Part 3, Payload Assembly

The fit of the bulkhead and red coupler tube were a little loose.

A bead of glue was run around the outside of the bulkhead wall. The coupler was marked 1/2" from the top with pencil. More beads of glue were run around the outside of the coupler and allowed to dry. These dry glue lines slightly increase the outside diameter.

Glue was applied inside the low end of the BT-20 sleeve tube with the larger holes at the top. These are the inside vent holes for the altimeter.
The red coupler was slid in up to the pencil mark.

Notice the laser cut line and the pencil line drawn down from the large hole. These are for alignment of the payload tube gluing.

Three smaller holes are pre-cut in the payload tube. These have to be lined up with the larger holes underneath on the sleeve tube segment. The inside larger holes give you a little extra leeway when gluing and sliding the upper tube in place.

Apply glue inside the upper tube, slid over the lower sleeve tube down to the laser cut line. Line up the holes!

A loop knot is tied in the Kevlar for the parachute attachment later on.