The full post for you to enjoy and discuss, from here: http://toughsf.blogspot.com/2017/10/spacex-sfr-small-falcon-rocket.html Performance estimates revised: 24 tons expendable, 12-14 tons recoverable to LEO. The Small Falcon Rocket is a scaled down alternative to SpaceX's Big Falcon Spaceship that fits on top of existing Falcon 9 boosters.  We will discuss the advantages and disadvantages of such a design. SpaceX's Big Rockets   The BFR, or Big Falcon Rocket,