TRAINEE GUIDE - Recruit Training Command - The US Navy

TRAINEE GUIDE A-950-0001
OUTLINE SHEET 1-11-1 (continued)
5. Navy System of Ship Compartment Identification
a. The means of locating spaces aboard ship; like an address.
b. Made up of ____________ parts:
(1) The first part designates the ____________ or ____________
on which the compartment is located.
(a) Decks are numbered from the main deck, (1st deck) to
the keel (bottom) of the ship; i.e., 2nd deck, 3rd
deck, etc.
(b) Each deck above the main deck is called a level.
1 The levels of the ship are ____________ by a
zero.
2 The first level above the main deck is "01"; the
numbers then go upward 02, 03, 04, etc.
(2) The second part of the designation identifies the
___________-most frame in the compartment.
(a) All ships are built with frames (metal ribs) to
support the ship's structure.
(b) Frames divide the ship and extend port to starboard.
(c) Frame "1" is at the ____________ of the ship.
(d) Frame numbers increase ____________ moving toward
the stern.
(3) The third part of the designation identifies the
compartment's relation to the ship's __________.
(a) Centerline--An imaginary lengthwise line through the
center of the ship.
(b) If a compartment is:
1 On the ____________, its number will be zero.
2 To the ____________ of centerline, it will be
identified by an ____________ number; the numbers
start adjacent to the centerline on the port side
and increase outward towards port: 2, 4, 6, etc.
3 To the ____________ of centerline, it will be
identified by an ____________ number; the numbers
start adjacent to centerline on the starboard
side and increase outward towards the starboard:
1, 3, 5, etc.
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