The OPTV will be a variant of the OTV, where the rocket engine is replaced by a cryogenic replenishment system. Image A displays the internal structure, and Image B is the external view.
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| Image A: The OPTV internal view |
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| Image A: The OPTV external view |
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The inert mass of the OPTV is summarized in Table 1.
Stage Mass = Inert Mass + Propellant Mass
Stage Mass = 2949 + 18053
Stage Mass = 21,002 kg
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