Hull classification symbol
From Halopedia, the Halo wiki
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.
Symbols
- FFG: Guided Missile Frigate
- UNSC In Amber Clad (FFG-142)
- CFV: Phoenix-class ships
- UNSC Spirit of Fire (CFV-88)