pitching down range stage one propulsion is nominal C at t+ 33 seconds and counting Falcon 9 has successfully lifted off from slick 40 after clearing the tower we tilt or gimal the engines to initiate a roll maneuver which you may notice in the stage one camera view this enables the vehicles antennas to stay in the best position for communicating with the ground and in just a few seconds we'll be throttling down the engines in preparation for Max Q or maximum aerodynamic pressure vehicle supersonic Max q and there's Max q and from this point on while Falcon 9 is still accelerating to an orbital speed of about 17,500 mph aerodynamic pressure on Falcon decreases as we approach the vacuum of space and back chill started now we have six events coming up in quick succession and we should hear all of these called out by Mission Control starting with Mo then stage separation stage one flip second engine start one or SCS one and the first and the first stage boost back burn and lastly fairing separation after stage one shuts down its engines and separates from the second stage the booster turns it self around in a flip maneuver to make its way back to land near the launch site the Boost back burn is a controlled engine burn that both slows the booster's forward velocity and then propels it towards its Landing site after boost back stage stage one will continue to coast in micro gravity to the highest point of its flight called the apey it will then begin to descend cut off there we just heard Mo stage separation confirmed stage separation and back ignition and sces one start up great call outs there and a great view of that mvac engine lighting up so after boost back it will then begin to descend under the acceleration of gravity until it's time to relight the engines for entry burn but