Multi-Stage Rocket Launch

The challenge

Build a two-stage or three-stage water rocket capable of controlled separation and continued flight.

• ✓Design multiple rocket stages with a clear separation mechanism.
• ✓Ensure the stages remain stable during flight.
• ✓Develop a reliable automatic separation system.
• ✓Provide appropriate recovery for the rocket stages.
• ✓Explain the principles behind the staging architecture.

Stage design

Each stage should work as part of a complete system while maintaining safe and predictable operation.

• ✓Design each stage with a clear function.
• ✓Keep connections secure before launch.
• ✓Ensure separation occurs only at the intended stage of flight.
• ✓Avoid mechanisms that could create uncontrolled hazards.
• ✓Test the separation system thoroughly before competition.

Testing and preparation

Multi-stage systems require careful testing because a failure in one stage can affect the complete flight.

• ✓Test individual stages before assembling the complete system.
• ✓Test the separation mechanism under controlled conditions.
• ✓Check all structural and recovery connections.
• ✓Prepare a clear launch and recovery procedure.
• ✓Follow the official launch instructions.

Evaluation

The challenge will assess system design, stage separation, flight performance, recovery and technical understanding.

Safety rules

All multi-stage launches must be performed under the supervision and procedures established by the organisers.

• ✓Use only approved launch systems and materials.
• ✓Never approach a pressurised system without authorisation.
• ✓Keep spectators and participants outside restricted areas.
• ✓Do not use combustible or explosive propulsion systems.
• ✓Unsafe designs may be removed from the launch.