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Star Trek - The Next Gene…ractive Technical Manual
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Star Trek The Next Generation Interactive Technical Manual.iso
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0331200.txt
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1994-08-09
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LIFEBOATS
The nature of its missions in the galaxy requires that the Enterprise
carry a set of small spacecraft for dedicated escape and rescue operations.
Located throughout both the Primary and Secondary Hulls, these ejectable
lifeboats are designed to meet the short-term survival needs of the starship
crew in the event of a catastrophic emergency.
As set down in the original Starfleet specifications, the standardized
ASRV, or autonomous survival and recovery vehicle, is capable of the
following operations:
ÑRapid departure from its parent starship with a minimum velocity of 40 m/s.
ÑIndependent maneuvering with a total delta-v of 3,600 m/sec.
ÑLife support for a total of eighty-six person-days.
ÑRecombination with other lifeboats after ejection to augment survivability.
ÑSubspace radio signaling for location and recovery.
ÑAtmosphere entry and landing.
The first group of ASRVs were delivered in 2337 in time to be fitted to
the last Renaissance class starship, the USS Hokkaido, and with minimal
hardware and software changes were chosen as the lifeboats for the Galaxy
class. Automated facilities on Earth, Mars, Rigel IV, and Starbase 326
produce 85% of the ASRVs, with satellite facilities on Velikan V and Rangifer
II acting as industry second-sources for the remaining 15%.
The ASRV measures 3 x 3 x 3 m and its shape is characterized as a
truncated cube. The total mass is 1.35 metric tonnes. Its internal spaceframe
is a standard beam and stringer arrangement, constructed from gamma-
welded tritanium and frumium monocarbonite. The frame is skinned with
single-crystal microfilleted tritanium, with umbilical pass-throughs,
conformal emitters, and sensors doped with hafnium cobarate for passive
thermal control during atmosphere entry.
Spacecraft propulsion is achieved through three distinct systems:
ejection initiator, main impulse engine, and reaction control system. The
ejection initiator is a single-pulse, buffered microfusion device that propels
the lifeboat through the launch channel. Power is tapped from the fusion
reaction to start the lifeboat╒s inertial damping field and spin up the gravity
generator. Like its larger cousin aboard the Enterprise, the IDF protects the
crew against acceleration forces. The main impulse engine, a low-power
microfusion system for all primary spacecraft maneuvering, is rated at a
maximum 950 kg thrust and is fed from a 75 kg deuterium fuel supply. The
reaction control system performs all precise attitude and translation motions
required for combined operations with other lifeboats and maneuvering
during planetary landing.
Life support on the ASRV is maintained by its automatic
environmental system, providing complete atmospheric composition,
pressure, humidity, and temperature control. Stored food and water supplies
as well as a waste management system are included. Lightweight
environment suits are stowed with portable survival packs for planetside
operation. The normal lifeboat crew capacity is four, with provisions for as
many as six if necessary.
One important feature of the ASRV design, the in-line twin hatches,
allows it to dock with other lifeboats to form larger clusters. This capability,
nicknamed ╥gaggle mode╙ by experienced pilots, dramatically increases in-
space survival rates by affording access to wounded crew members by
medical personnel, combining consumables supplies, and adding propulsion
options. Gaggle mode must be terminated prior to atmosphere entry, as the
structural loads cannot be handled by the combined craft.
Out of four hundred ejectable lifeboats installed within the Galaxy
class, eighty are specialized ASRVs with two additional docking ports to
increase the packing density and structural integrity of the gaggle. Computer
simulations indicate that at least 25% of any total number of ejected ASRVs
are likely to be the four-port version.
Crucial to the successful recovery of the ASRVs are the subspace
communications systems and automatic distress beacons. ╞