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3.3 Transfer Habitation Module
3.3.1 Internal configuration
HMM
Assessment Study
Report: CDF-20(A)
February 2004
page 138 of 422
3.3.1.1 Requirements
The crew consists of six crew members, of which three are supposed to land on the surface of
Mars for a 30-day surface stay. The transfer duration from Earth to Mars will be approximately
200 days and there will be a stay in the Martian orbit of about 550 days.
When designing a human mission, basic required volumes have to be integrated. Based on the
Man System Integration Standards, the NASA Standards 3000 (STD) and the paper ”Habitability
as a Tier One Criterion in Advanced Space Vehicle Design: Part One—Habitability” by
Constance Adams (paper no.: 1999-01-2137, AIAA), functional and volume requirements for a
habitat module were established:
A summary of these requirements is shown in Figure 3-15 to Figure 3-18. The internal
configuration features three zones:
1. Crew quarters belong to the private zone in a spacecraft.
2. The personal zone in a spacecraft is defined by functions such as the command, the
laboratory or typically the exercise facilities where the crew trains/works mostly on
their own. The medical and hygiene facilities also belong to the same category.
3. The third zone is the social or communal zone.
Storage space or racks can be found in any zone though preferably not in the crew quarters so
that this place stays calm and quiet and free from noisy equipment shifts.
Figure 3-15: Recommendations for volumes for different areas of the private zone
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