Starship prototypes undergo rigorous testing on the launch stand before their actual flights. The low-altitude, low-velocity Starship hopper, also known as “Starhopper,” resembling a water tower, allowed SpaceX to test the Raptor engine’s integration and performance and help to ensure the spacecraft’s performance and safety. Key tests include:
Ambient-Temperature Pressure Test: This test assesses how the Starship prototype withstands pressure changes at room temperature. It helps verify the structural integrity of the spacecraft.
Cryogenic Proof Test: In this test, the Starship is subjected to extremely low temperatures using cryogenic propellants to simulate conditions it will encounter during actual spaceflight. It checks for any leaks or weaknesses in the structure.
Static Fire of the Engines: The prototype’s Raptor engines are fired while the vehicle remains stationary on the launch stand. This test evaluates the engines’ performance, thrust, and control systems.
