EXTERNAL COORDINATE SYSTEM
	An integrated system governing control of all manufacturing, repair, 
and operational structural reference points exists for the USS Enterprise and 
all other Starfleet vessels. The system utilizes a standard three-dimensional 
vertex and vector measuring scheme, with centimeters as its operative 
value. The three axes are labeled X, Y, and Z. The X axis runs port-starboard, 
with +X to starboard. The Y axis runs dorsal-ventral, with +Y to dorsal. The Z 
axis runs fore-to-aft, with +Z to aft. Note that this is opposite in sign to 
translational maneuvers, which consider +Z to be in the direction of flight.
	All single points, vectors, and planes can be determined with this 
scheme, creating a common ground for structural topics. The Enterprise is 
considered to have three vessel configurations: Docked, Saucer Module, 
and Battle Section. Each configuration maintains a specific measurement 
origin, designated by the XYZ value of the forwardmost structure. For 
example, the center forward edge of the Saucer Module is labeled XYZê 
0,0,0. Coincidentally, it is also the origin for the docked vessel and can be 
labeled XYZë 0, 0, 0. The origin for the Battle Section, designated XYZõ 0, 0, 0, 
also corresponds to a point on the docked vessel as XYZõ 0,0, 0, also 
corresponds to a  point on the docked vessel as XYZë 0, -1676, 25146, 
meaning that the Battle Section origin is at 25146 cm aft of the shipÕs forward 
edge and 1676 cm below.
	Specific components, such as the warp engine nacelles, are given 
their own origins and coordinate values, and these will also have 
corresponding values relative to their parent assemblies. For example, the 
origin of the port warp nacelle is labeled XYZ× 0, 0, 0. This point, relative to 
the Battle Section origin, is XYZõ Ñ12954, Ñ1524, 13716.
	Planes passing through the different vessel configurations are 
labeled according to their axes. XY planes of the docked starship run 
vertically and laterally, XZ planes intersect the ship parallel with the saucer 
equator, and YZ planes run vertically and fore-to-aft. Planes may be called 
out as existing at specific XYZ station points, and coordinates may be given 
within that plane, especially in locating key starship components or 
processes.
	Normally, all coordinate and planar data are manipulated by the main 
computers in their monitoring and repair tasks and are available to 
Engineering crew members as an option in considering exact three-
dimensional relationships within the ship.

INTERNAL COORDINATE SYSTEM
	Structures and objects within the USS Enterprise spaceframe are 
located with the following coordinate system. Intraship locator addresses 
are based on a fifteen-digit code which follows the form: Ò12-1234-
000/000/000.Ó
	The first group of two digits refers to the deck number. Possible 
values within the Primary Hull range from 01 (Deck 1, the Main Bridge) to 16 
(the captainÕs yacht docking port on the underside of the saucer). Within the 
Engineering Hull, deck numbers range from 08 (the Battle Bridge at the top of 
the dorsal) to 42 (Deck 42, the bottom of the Engineering Hull).
	The second group of four digits specifies the sector and 
compartment number. For locations within the Primary Hull, the first two 
digits of this group refer to one of 36 ten-degree sectors.
	For locations within the Engineering Hull, the first digit of this group is 
always a 5, with the second digit designating one of ten sectors. A first digit 
of 6 indicates a location within the port warp nacelle or pylon, and a first digit 
of 7 indicates a location within the starboard warp nacelle or pylon.
	The third and fourth digits in this second group indicate the 
compartment or station number within the sector.
	Note that the first and second group of the locator address (totaling 
six digits) are generally used as room designator numbers within the 
habitable volume of the spacecraft. By keeping in mind this general scheme 
of room and compartment numbering, it is possible for crew members to 
locate virutally any room on board the ship by use of the internal coordinate 
system.
	The final group of three three-digit numbers refers to the XYZ 
coordinate address within a compartment. In cases where greater precision 
is required, decimal values are appended to each of the XYZ coordinates.  Æ