Hull classification symbol

The Hull Classification Symbol is placed on each and every UNSC ship. Different types and sizes of ship have different classification symbols. Placed after the symbol is a number. Each ship of that class gets a different number. This way, the Hull Classification Symbol is a sort of numerical identification system for ships, other than their names.

The symbol is based off of a system of the same name used by the ancient United States Navy. The symbols have a few things in common, a symbol beginning with "FF" generally denotes a Frigate, "DD" a Destroyer, "CC" a Cruiser, "CV" a Carrier, and "BB" a Battleship. The rest of the letters vary depending on the type of vessel. There can be dozens of types of each class of vessel.

Hull classification symbols are extended to Covenant ships also, as a way of classing them.

UNSC

 * CFV: Phoenix-class ships
 * UNSC Spirit of Fire (CFV-88)


 * DDA: Freighters
 * UNSC Onan (DDA-147)


 * FFG: Guided Missile Frigates
 * UNSC In Amber Clad (FFG-142)
 * UNSC Forward Unto Dawn (FFG-201)
 * UNSC Aegis Fate (FFG-307)


 * ODA: Orbital Defense Platforms
 * Cairo Station (ODA-142)
 * Malta Station (ODA-143)
 * Athens Station (ODA-144)

Covenant

 * CCS: Strike Battlecruiser (theorised)


 * CPV: Patrol Cruiser-Carrier (theorised)


 * CAR: Radar Picket Heavy Cruiser  (theorised)