As the end of the year rapidly approaches, many in the quickly growing private space industry have their eyes set squarely on Elon Musk’s massive Falcon Heavy rocket platform, scheduled to conduct static fire testing before we change our calendars. The rocket promises to be the most powerful in use anywhere on the planet once it finally takes flight, tentatively within the coming weeks, which promises to be a sight to see, based on the images being released by Musk’s company, SpaceX.

The Falcon Heavy promises to be much more powerful that previously launched Falcon 9 rockets that SpaceX has been using (and re-using) for a few years now – which makes perfect sense, seeing as the platform itself is basically three of these rockets bolted together. With nine Merlin rockets per Falcon platform, that means the Falcon Heavy boasts a whopping 27 individual engines. If you’re looking for a frame of reference, the force released by all of these engines combined is roughly equivalent to the thrust produced by 18 Boeing 747s. According to Musk, the first launch of the Falcon Heavy will be limited to 92% of that maximum thrust figure.

To get a sense of what just one of those 27 engines can do, here’s a video SpaceX posted of a recent test: