The Indian Space Research Organisation (commonly known as ISRO) has successfully conducted a hot test on the semi-cryogenic engine (SE2000), marking a major milestone in developing powerful engines for future space missions. This test called the Power Head Test Article (PHTA), is an important step toward finalizing the cryogenic stage that powers the booster stages of launch vehicles. What is the Power Head Test Article (PHTA)? The PHTA is a significant test to evaluate key subsystems of