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=== First stage: ''Super Heavy'' ===
{{anchor|BFR|Big Falcon Rocket|Super Heavy}}
The first stage, or booster—also referred to as ''Super Heavy''<!-- was given the descriptor ''Super Heavy'' in November 2018; previously just the "BFR first stage" --><ref name=engadget20181120/>—of the SpaceX next-generation launch vehicle is {{convert|63|m|sp=us}} long and {{cvt|9|m}} in diameter. It is expected to have a gross liftoff mass of {{cvt|3,065,000|kg|lb}}<ref name="SpaceX20180917"/> It is constructed of stainless steel tanks and structure, holding [[Subcooled propellant|subcooled]] [[liquid methane]] and [[liquid oxygen]] ({{chem2|CH4}}/LOX) propellants, powered by 31 [[Raptor (rocket engine family)|Raptor]] rocket engines<ref name="pm20180207">[https://www.popularmechanics.com/space/rockets/a16672538/spacex-testing-new-rocket-bfr-next-year/ SpaceX Aims to Begin BFR Spaceship Flight Tests as Soon as Next Year]. Jay Bennett, ''Popular Mechanics''. 7 February 2018.</ref> providing {{cvt|61.8|MN|lbf}} total liftoff thrust.<ref name="SpaceX20180917"/><!-- "200-ton thrust" = 1993kN x 31 = 61,783 MN--> The booster is projected to return to land on the launch mount
[[File:BFR at stage separation (2).jpg|alt=Starship-Super Heavy separation.|thumb|Artistic rendition of ''Starship'' separating from Super Heavy during launch.]]
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