UNSC Buenos Aires

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Buenos Aires
Ship history
The Unified Earth Government logo Unified Earth Government


Buenos Aires


Unidentified UNSC light destroyer class[1]


Buenos Aires, Argentina


UNSC Navy[1]


Destroyed in the Callisto Incident, March 2, 2494[1]

General characteristics


Light destroyer[1]

Power plant:

2 fusion reactors (1 primary, 1 secondary)[1]

Slipspace drive:

Shaw-Fujikawa Translight Engine[1]


7 Ares missile silos[1]


UNSC Buenos Aires was a light destroyer of unknown classification in the service of the UNSC Navy during the 25th century.[1]

Service history[edit]

On March 2, 2494, the Buenos Aires, alongside fellow destroyers UNSC Jericho and UNSC Las Vegas, was tasked with patrolling the 26 Draconis system in response to the insurgent capture of the corvette, UNSC Callisto. At this time, all three destroyers had yet to see combat, with weapons that had never been fired and crews that had never seen combat. Around 0300 hours on March 2, the battle group made contact with the Callisto in the 26 Draconis asteroid belt and proceeded to pursue the stolen corvette. All three destroyers were ordered by Captain Harold Lewis to coordinate fire and arm six of their respective seven Ares missile silos, before opening fire around 0315 hours. While initially considered an easy kill, the detonation of a nuclear weapon hidden in one of the asteroid masses by the rebels in a manner similar to a shaped charge saw the Buenos Aires pelted with radiation and debris, taking the brunt of the damage due to its position at the fore of the task force and seeing its forward sensor masts boiled away due to the heat.[1][Note 1]

UNSC Buenos Aires was confirmed destroyed by Second Lieutenant Preston Cole at 0329 hours, with Las Vegas' sensors able to pick up a field of Buenos Aires' debris on a heading matching the destroyer's last known vector.[1]


The Buenos Aires is named for the capital of Argentina.

List of appearances[edit]


  1. ^ The description of the Buenos Aires' destruction erroneously states that her antennae and MAC trajectory sensors were boiled away. However, the later analysis outro for Section 4 later explicitly mentions the light destroyer class used in the Callisto Incident as predating the introduction of MACs, which would occur in response to the Insurrection.


  1. ^ a b c d e f g h i j Halo: Evolutions - The Impossible Life and Possible Death of Preston J. Cole, section 4