Oops, sorry, I read too quickly and thought you meant 140 t to LEO per launch, and three launches for the full mission. (I also had NASA's DRM 5 in my head, whi

Oops, sorry, I read too quickly and thought you meant 140 t to LEO per launch, and three launches for the full mission. (I also had NASA's DRM 5 in my head, which requires three deliveries of roughly that size per mission, rather than Mars Direct which requires two.)