In 2012, SpaceX announced its plans to produce a Methalox rocket engine that would be several times more powerful than the kerosene-burning Merlin engines powering its workhorse Falcon 9.

MaxQ is of course *** critical milestone for us here at SpaceX because it is ... or SES 1 for short. Now main engine cutoff or Miko is where all 9 Merlin 1D engines shut down in preparation ...