## Extended Duration Test Execution Extended duration ground testing achieved 45 seconds of continuous operation with stable chamber pressure and consistent thrust output—a significant advance from short-pulse testing. The test article includes a propellant tank, feed system, and thruster mounted on the test stand. A solenoid valve controlled by timer commands the thruster. All necessary instrumentation was active: load cell, pressure transducers, thermocouples, and 1 kHz data acquisition. ## Safety and Test Conduct Testing was conducted with proper safety precautions: blast shields, remote propellant feed control, and safe-distance operation. The thruster ignited cleanly and produced steady thrust throughout the 45-second burn. ## Performance Results Chamber pressure remained stable. Thrust output was consistent from start to finish. Data analysis showed excellent performance with no anomalies. The catalyst bed maintained activity throughout the extended burn with no degradation. This success demonstrates the thruster design is sound and can operate reliably for extended periods. ## Program Transition The program transitions from initial development to systematic performance optimization. Next steps involve testing different configurations: increased propellant loads, alternative nozzle designs, and various catalyst formulations. Each test provides data to refine design and improve performance.