JAXA+ | What if Japan had an unlimited space budget? (KSP Real Solar System)

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mikusingularity
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If the Japan Aerospace Exploration Agency (JAXA) had an unlimited budget, they might build the H-Z launch vehicle (Z considered to be the "ultimate" letter), a super-sized version of their H-IIA and H3 rockets, capable of lifting up to 485 tonnes to low Earth orbit. The H-Z imports old designs by Aerojet for the M-1 hydrolox engine (LE-Z) and AJ-260 solid rocket booster (SRB-Z).

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Launching a heavy test satellite from Tanegashima Space Center

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A single stage (with boosters) version launching the "Kibo-2" wet workshop space station, with a on-orbit mass of almost 470 tonnes (including the tanks). The first stage tank insulation is coated with a white sealant to protect it from popping in the vacuum of space.

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