Sputnik Model Rocket - Step 3
After the glue has dried for the launch lug and engine block, coat the outside of the engine tube with 5 minute
epoxy. (Do not apply any glue to the bottom 1/2" of the tube.) Then, slide the engine tube into the hole in
the styofoam ball. Wipe away any excess glue. Allow to dry.
Continue to Step 4