Would be muc easier to do with just the second stage - it gets into orbit
anyway and it does most of the velocity change on the falcon 9. It gets to
orbit fairly empty and is already vacuum optimised.
Andre
On Mon, Feb 12, 2018 at 9:19 AM, Eivind Liland <spookysys@xxxxxxxxx> wrote:
Could you add some more side boosters and bring the Falcon center stage
all the way to orbit? And tank it up in orbit, like envisioned for the BFR?
Fly it to mars with a huge payload?
Do they need to wait for the BFR to do all this or could they already do
it with the Falcon architecture?