In the compartment label 2-123-1-L, what does the '1' indicate?

In the compartment labeling system used by the Navy, the number '1' in the label 2-123-1-L indicates the number of compartments off the centerline. This system is crucial for identifying the position and purpose of different compartments within a ship.

Each compartment label consists of several components that provide vital information. The first digit typically refers to the deck number or level, the following numbers usually indicate the frame number or section, and any additional numbers describe specific divisions. The last letter denotes whether the compartment is on the port or starboard side of the ship.

Thus, '2-123-1-L' shows that this particular compartment is located on the second deck (indicated by '2'), is accessed by the 123rd frame (indicated by '123'), and is the first compartment to the left of the centerline (indicated by the '1'). Understanding this labeling convention is essential for effective navigation and operations aboard Navy vessels.