Estes Black Star Voyager Build, Part 3, Engine Mount

Here's the finished mount with the notched centering ring glued up against the black retainer ring. The flat face of the ring is spaced 1/2" from the rear of the engine tube.

Again, I used my aluminum angle to glue on the upper (Part L) tube in line with the engine mount.

Jumping ahead:

The base of the adapter has holes cut to allow the ejection charge gases to pass through and deploy the parachute. I don't remember ever seeing ejection holes made through a plastic adapter.

Pencil mark the hole positions before drilling. The four holes should be around 1/8" diameter.