SpaceX Launches Satellite for Intelsat

The video tutorial covers the initial stages of a Falcon 9 flight, focusing on propulsion and avionics status. It highlights the nominal performance of the Merlin 1D engines and the vehicle's transition to supersonic speed, emphasizing the importance of maximum dynamic pressure.

What major activity was expected to occur in just over 15 seconds?

What does it mean when Falcon 9 is described as having gone supersonic?