For future reference, the return part is made up of 3 burns.  The first two use three engines, and the landing burn uses just the one.  Coming back, it&#x27;s obviously much lighter without all the propellant and 2nd stage&#x2F;payload weight, so it needs much less thrust to reverse course.  See <a href="http:&#x2F;&#x2F;flightclub.io" rel="nofollow">http:&#x2F;&#x2F;flightclub.io</a> for more info.