tCM1_04–04–18


This temporary Crew Module (tCM) variant will consist of the 2 EVA port option on both sides of the spacecraft (Image 1). Four astronauts will live in the CM for 18 days.
Image 1: Single level temp Crew Module, 4 EVA ports, 18-day duration
Table 1 displays the Dynamic Mass for a CM that will house 4 astronauts with 4 spacesuits for 18 days.

SPACESUIT MASS

280

kg

EVA EQUIPMENT MASS

73

kg

EC/LSS

442

kg

CONTINGENCY

55

kg

CREW MASS

327

kg

FOOD MASS

136

kg

CREW SYSTEMS

68

kg

tCM1_04–04–18 DYNAMIC MASS

1,381

kg

Table 1: Single level 4 Crew 4 EVA 18-day CM

This particular CM variant will incorporate a flexible emergency airlock with a mass of 27 kilograms (Image 2).
Image 2: Flexible Emergency Airlock
Total Mass = CM1 Static Mass + tCM1_04–04–18 Dynamic Mass + Emergency Airlock
Total Mass = 1,577 kg + 1,381 kg + 27 kg
Total Mass = 2,985 kg

We will now modify the Crew Module designation by adding the mass:

tCM1_04–04–18–2985

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