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Star Trek - The Next Gene…ractive Technical Manual
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0330718.txt
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EXTRAVEHICULAR ACTIVITY
Situations requiring one or more crew members to exit the starship in
an airless or otherwise hostile environment are known collectively as
extravehicular activity (EVA). These include detailed visual inspections,
periodic maintenance, damage control, and unique hardware modifications.
They may be done alone or in concert with teleoperator and automated
systems.
Various degrees of protection are available for starship crews. While
the actual configurations carried by Starfleet vessels will vary according to
major mission segments and swapouts for improved models, typical suit
types are presented here. The first, the low pressure environment garment
(LPEG), is a close-fitting, lightweight suit, designed for benign airless
operations. One use would be during an orbital starbase layover, where the
spacecraft is in External Support Mode, well protected against radiation and
micrometeoroid hazards. The suit features simplified multilayer construction,
affording atmospheric integrity, gas exchange, and thermal and humidity
control without sacrificing mobility. All consumables and circulation
equipment are mounted within an integral backpack, with controls placed for
50 percentile humanoids on the chest and forearm areas. The suit allows for
exterior operations, though time outside is limited to three hours. A variant of
the LPEG is the emergency pressure garment (EPG), designed for long-term
storage in starship emergency equipment lockers. The EPG is capable of
supporting life for two hours in most ship abandonment or isolated hull
breach scenarios while crews await rescue.
Starfleet╒s midlevel suit is the standard extravehicular work garment
(SEWG). This type is reinforced with additional radiation and pressure layers
for extended operations, and is configured with a sixteen-hour consumables
supply, plus enhanced recycling devices. It is designed for most major
industrial tasks and hazardous exploration assignments. Radiation and
micrometeoroid protection is essentially unlimited. The suit controls are
supplemented by advanced autonomic life support controllers within the suit
computer.
The current high-level suit is the augmented personnel module
(APM). This suit is a hybrid garment composed of both hard and flexible body
segments, essentially a complete small spacecraft. The concept, still valid
after four hundred years, allows the occupant to perform slightly longer
duration missions than the SEWG, but with much greater relative comfort. A
wide array of readily available tools and manipulator options is coupled with
reaction control system thrusters, resulting in high productivity EVA returns.
All suit types are available in customized versions for nonhumanoid
and handicapped crew members. ╞