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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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0320410.txt
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1994-08-08
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MAIN SKELETAL STRUCTURE
The primary spaceframe of the Galaxy class starship is fabricated
from an interlocking series of tritanium/duranium macrofilament truss
frames. These members average 1.27 m« in cross section, and are located an
average of every 25 meters across the ship╒s exterior.
Larger numbers of these trusses are located integral to the main and
saucer impulse engine sections, the warp nacelle pylons, both saucer and
battle sides of the docking latch interfaces, and along the centerlines of both
hull structures. Smaller trusses, averaging 0.53m« in cross section, are
located every five meters on average, and also provide internal supports
within the deck and core structure of the spacecraft interior.
This basic mechanical framework provides physical integrity to the
vehicle while at rest. A parallel series of aluminum crystalfoam stringers are
phase-transition bonded to the primary trusses, providing low-frequency
vibration attenuation across the main truss structure, as well as support for
certain utility conduits.
Also attached to these stringers are various conformal devices built
into the hull structure, including elements of the deflector shield grid, as well
as subspace radio antennas, which are incorporated into the exterior skin of
the spacecraft.
SECONDARY FRAMEWORK
Mounted to the primary spaceframe is a secondary framework of
microextruded terminium trusses to which the inner hull structure is directly
attached. The secondary framework is mounted by means of 3.2 cm diameter
x s.1 cm long semirigid polyduranide support rods, permitting a limited
amount of mechanical isolation from the primary spaceframe for purposes of
strain relief, plus sound and vibration isolation. Secondary spaceframe
segments are also separated from each other (although mechanically
attached) to permit replacement of inner hull segments and associated
utilities infrastructure during major starbase layover.
Structural integrity during powered flight is provided by a series of
forcefields that reinforce the physical framework. This structural integrity
field energy (SIF) is distributed through a network of molybdenum-jacketed
waveguides, which in turn distribute SIF energy into ceramic-polymer
conductive elements throughout the spaceframe. Without the structural
integrity field, the vehicle would be unable to withstand accelerations
greater than 7.4 m/sec« without significant deformation, or greater than 19.5
m/sec« without unrecoverable structural damage (in other words, the
spacecraft would sag under its own weight in Earth╒s gravity without the
reinforcement of the SIF
The exterior hull substrate is joined to the primary load-bearing
trusses by means of 4.8 cm diameter electron-bonded duranium pins at 1.25
meter intervals. These pins are slip-fitted into an insulating AGP ceramic
fabric jacket that provides thermal insulation between the spaceframe and
the exterior hull. The pins, jacketing, and hull segments are gamma-welded
together. ╞