ESA Document - Emits - ESA

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4.2.4 Surface habitation module
Figure 4-3: Mars excursion vehicle
Figure 4-4: Global dimensions Mars excursion vehicle
HMM
Assessment Study
Report: CDF-20(A)
February 2004
page 254 of 422
The SHM is the pressurised part of the MEV and consists of a main cylinder (see Figure 4-5).
The global dimensions are shown in Figure 4-6. In a dedicated paragraph the interior of this main
cylinder is presented.
In Table 4-3 the pressurised volume is presented; it is less than the required 79 m 3 . The diameter
of the SHM is kept small because free space is needed for the exhaust gasses of the engines of
the MAV during ignition. To prevent contamination of Mars, the SHM may not been damaged