Ozone Probe
This is our easiest two-stage water rocket. Still, it presents a much bigger technical challenge than our single-stage rockets. It’s best to gain some experience with the SkyLab or High Altitude Pro before attempting to send one of these up.
The bottom stage accelerates the rocket to flying speed and then drops out at about 30 feet off the ground. Then the upper stage takes over and keeps going up for a long, long time. This is the ideal pop bottle rocket for serious rocket scientists (past, present or future).
