Habitation Extension Modules

File:Limeyhem.jpg

Proposed Habitation Extension Modules shown attached to Node 3.

The Habitation Extension Modules (HEM) are proposed British-built modules designed to connect to Node 3 of the International Space Station. They were conceived by a consortium of engineers and scientists led by Mark Hempsell, aeronautical engineer at the University of Bristol.

The proposal has no formal support of the British government, as of January 2008, but if funded, the modules could be launched sometime in 2011.

The purpose of the modules is to provide a formal British presence in the ISS project, which to date has been nonexistent (Britain is not an independent ISS partner, and does not contribute through ESA either). More specifically, the two modules will provide 100 cubic metres of living space with enhanced radiation protection, and allow the astronaut crews an enhanced amount of social and personal living space on board the platform.

File:Hemwardroom.jpg

Interior of the HEM 'C' module, in isometric profile.

The two modules are named HEM 'C' and HEM 'D'. HEM 'C' is designed to contain a wardroom arrangement of a viewscreen with a central table for group meetings and conferences with Earth. HEM 'D' would contain improved sleeping and personal work arrangements. HEM 'D' features six separate compartments which each contain a small sleeping area (900mm x 2000 mm), a foldaway desk, and a small amount of space for personal effects and other items. From a personal privacy point of view, it affords each crew member an area where they can close a door and be entirely private from the rest of the crew, where they can dress and undress, or perform other acts of a personal nature.

The estimated cost of the modules is £600m, spread out over the course of 6 or 7 years and takes into account the costs of construction, launching and maintenance.

See also

• Proposed modules for the ISS

External links

• Habitation Extension Module at the University of Bristol