This two–level Crew Module (CM) variant will consist of the three EVA port option on the port side and the sensor panel option on the starboard side of the lower deck and the 2 EVA port option on both sides of the upper deck (Images 1 and 2). Seven astronauts will live in the CM for 30 days.
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| Image 1: Two-Level Crew Module, 7 EVA ports, 30-day duration, interior |
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| Image 2: Two level Crew Module, 7 EVA ports, 30-day duration, exterior |
Table 1 displays the Dynamic Mass for a CM that will house 7 astronauts with 7 spacesuits for over four weeks.
Total Mass = CM2 Static Mass + CM2_07–07–30 Dynamic Mass
Total Mass = 2,961 kg + 3,471 kg
Total Mass = 6,433 kg
We will now modify the Crew Module designation by adding the mass:
CM2_07–07–30–6433
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