These are superior ships to the Earth Alliance Hyperion class heavy cruiser but inferior to the newer Omega class destroyers. When this vessels was first designed in 2244 there were rumors that despite its size this vessels was capable of atmospheric maneuvering which meant that the Narn had developed artificial gravity , but Centauri spies later confirmed that this was untrue and the Narn were no way near to developing artificial gravity. Many of these rumors were circulated by the Narn government itself in order to promote the belief that the Narn were more technologically advanced than they really were in order to frighten potential enemies.
The majority of the G'Quan-class cruisers were destroyed during the Narn-Centauri War. The greatest losses came at the Battle of Gorash 7, which was an attempt by the Narn to destroy the main Centauri supply base on a planet called Gorash 7. A fleet of Shadow vessels intercepted the Narn armada and completely annihilated it. However, a few Narn cruisers managed to survive the war, and they played a key role in the war against the Shadows. After Narn was liberated from Centauri rule in 2261, the Narns quickly began to rebuild their fleet, and within a few years many new G'Quan-class cruisers had been placed into service.
- Babylon 5 Tehnical Manual