Quote from: envy887 on 02/14/2018 11:56 amFH can put 34 tonnes to TMI with one crewed launch, the same mass as SLS. It only requires one additional uncrewed launch, which adds basically no risk to the crew.The assumption in all of these discussions seems to be that the cost of developing the capability for a LEO rendezvous mission, cryogenic orbital refueling etc., is free. It certainly is not. For example, you forgot to include here the extra two or three or more launches needed to refuel the trans-Mars stage in low earth orbit - assuming all are expendable launches. If the stages are recovered, count on six or more refueling launches. - Ed Kyle
FH can put 34 tonnes to TMI with one crewed launch, the same mass as SLS. It only requires one additional uncrewed launch, which adds basically no risk to the crew.
None of these rockets can match the capabilities of the SLS. The SLS will go on to complete its crewed missions to Mars in the 2030s while private space companies are stuck at earth. Take it to the bank.