For TheStick, it really does come down to the SSME or the J-2S it seems. If NASA can't figure out how to make a simplified version to make the big HLLV economical, then they have even less reason to try and use it for the TheStick, especially since they're building the uprated SRB and J-2S anyway for the heavy lifter.
]]>More and more like Apollo everyday.
]]>I know that during the days of SLI Rocketdyne was working on an enhanced version of the RS-68 for resuability dubbed the RS-83. From what I gathered it had a regenerative nozel, and turbopumps that were designed for reuse as well as acess ports?
Does anyone know how far they got on this engine development? Would it be able to be revived for VSE if nasa comes to it's senses and stops pursuing the J2-S?
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