The Falcon Heavy is an absurdly low-cost heavy lift rocket

Twenty-seven engines on the Falcon Heavy rocket, all burning their happy little flames. (credit: SpaceX)

One may criticize the Falcon Heavy rocket for having a short launch manifest, as it has only two confirmed flights in the next year or so. There just aren't that many commercial customers right now for the heavier-lift rocket when a cheaper Falcon 9 or another medium-lift class of booster will suffice. But when one considers the more extreme cases-such as big Department of Defense missions to geostationary orbit or potential human exploration plans-the Falcon Heavy shines.

Now that SpaceX's new rocket is finally flying, we can directly compare costs between this new booster and an existing rocket in its class, the Delta IV Heavy, as well as NASA's upcoming heavy lift booster, the Space Launch System. And upon direct comparison, the cost disparities are sobering, proving that commercial development of large rockets likely represents the future of the industry.

Delta IV Heavy

The Falcon Heavy rocket, with reusable side boosters, costs $90 million. For a fully expendable variant of the rocket, which can lift a theoretical maximum of 64 tons to low-Earth orbit, the price is $150 million. While it is not certified yet, SpaceX says its rocket can hit all Department of Defense reference orbits; however big and gnarly the military wants to build its satellites, and whatever crazy orbit it wants to put them into, the Falcon Heavy can do it.

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