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At present, the HDC is modeling the proposed ascent and habitat modules. On this scale model, the ascent module is on the left, the airlock on the right.
Now in full scale, the ascent module on the left, airlock on the right. The mock-up is made of a flexible PVC to allow for easy modification. The ascent module is also configured to expand so that the HDC can test various diameters with human subjects.
Climbing inside the ascent module, the controls, lockers and other components are also fabricated from PVC to facilitate reconfiguration. One lesson learned from Apollo: no more lockers. Equipment and supplies are presently expected to be stowed in modular compartments that can be moved around the cabin as needed/desired. Not pictured but present: a waste containment system (toilet) and hammocks (bunk beds were also tested).
Elsewhere in Hangar X, a full scale descent module platform is under construction, on top of which will be placed the full scale ascent module. The descent module alone is as tall as a two-story house. In this photo, the ascent module would sit atop the very top, not the mid-platform (and still this mock-up fits well within the allocated space inside the proposed Ares V).
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