A browser simulator of the bottle rocket: variable-mass propulsion with a water thrust phase, an air blowdown phase and a drag coast, plus an optimiser for the water fill fraction. Simulation only, not a build guide.

Every public app is built from a security-scanned skill and must pass a clean scan — skill and frontend — before it can be listed. Have a skill of your own? Turn it into an app — or read the step-by-step walkthrough.