Quote from: niwax on 08/22/2022 10:22 pmI guess if you want to go crazy you could also forego the extra vehicle entirely and slap a docking port and some Dragon avionics on a Falcon second stage. That thing will arrive in LEO with 15 tons of fuel to spare and plenty of time to dock thanks to GEO capability.F9 stage has to survive upto year attached to ISS while meeting all stations safety requirements.
I guess if you want to go crazy you could also forego the extra vehicle entirely and slap a docking port and some Dragon avionics on a Falcon second stage. That thing will arrive in LEO with 15 tons of fuel to spare and plenty of time to dock thanks to GEO capability.
I think an proposed h3 launching a improved second stage is so uitable for deorbiting iss
NASA revises contract strategy for ISS deorbit vehicleJeff FoustDecember 7, 2023WASHINGTON — NASA will give companies greater choice in the type of contract to use for producing a deorbit vehicle for the International Space Station.In a procurement notice posted Dec. 5, NASA announced it would allow companies the choice of using either firm fixed price or cost plus incentive fee contract structures for both the design and the production of the U.S. Deorbit Vehicle (USDV).