Flying model rockets is a safe and informative way for students to grasp forces and the effects on a vehicle in flight. The whoosh rocket, a unique variation of the two-liter bottle rocket, replaces water with a combustible alcohol-air mixture to generate thrust by combustion. Launching requires careful steps to avoid potential hazards, such as explosion from excessive pressure. This rocket does not reach high altitudes but offers valuable lessons on liquid fuel combustion for students. Extreme caution is necessary when handling the whoosh rocket, with strict safety measures in place to prevent accidents. Remember, unauthorized use of unsafe materials can be dangerous.
https://www1.grc.nasa.gov/beginners-guide-to-aeronautics/whoosh-rocket/