This video provides a glimpse into the development and testing of the jet-powered humanoid robot, the #iRonCub3, over the past years. The research involves unique challenges that go beyond traditional humanoid robotics. Thermodynamics plays a key role, as turbine exhaust gases reach temperatures of about 800 degrees Celsius and nearly the speed of sound. Additionally, the aerodynamics of multi-body systems, combined with neural networks and physics-informed components, need to be evaluated in re