So Elon Musk is aiming for 1000 starships towards Mars before 2050. 100/year over 10 year period (or something like that). Each booster uses about 33 Raptors,

So Elon Musk is aiming for 1000 starships towards Mars before 2050. 100/year over 10 year period (or something like that). Each booster uses about 33 Raptors, and each Starship uses 6. I assume the boosters can be reused between launches to some extend. So they might not need 100 boosters. But you'll need more than 100 ships active; I assume they wouldn't launch 100/year, but rather 200 every 2 years (due to the 26 month launch windows to Mars). Not sure about the return windows and strategy. That's at least 200 ships (1200 engines) you need active at any given time + boosters + refueling vessels (Each launch will require 6-9 refuels in orbit). Additionally, there is the whole Earth-to-Earth transport idea (i.e. New York to Tokyo in 50 minutes).