Nihydron destroyer

The Nihydron destroyer was a Nihydron starship class, a tier 5 destroyer/warship in service to the Nihydron from the 24th century. In the early 25th century, it became the destroyer for the multi-species Krenim Coalition. The Nihydron destroyer was armed with temporal weaponry. (, [Year of Hell Lockbox])

Size
The Nihydron destroyer was the smallest of the three main Coalition starship classes, dwarfed by the Krenim warship and the Zahl heavy cruiser. (, [Year of Hell Lockbox])

Weapons and systems
In the 2370s decade, the warship's primary weapon were beam energy weapons. 

In the 2410s, additional weapons were part of the complement: The Nihydron destroyer now featured four forward facing and three rear weapon slots. These slots could be equipped with blue standard energy weapons, cannons and torpedo launchers.

The Nihydron destroyer incorporated the Coalition's shared technical advances into a front-line strike vessel built primarily for maneuverability and offense. ( [Year of Hell Lockbox])

Personnel
A Nihydron destroyer had a crew of 200 officers. Through the Lobi Crystal Consortium, the Nihydron destroyer was made available for commanding officers from the Alpha Quadrant Alliance. The minimum rank for an eligible officer was rear admiral (Starfleet), brigadier general (Klingon Defense Force) or subadmiral (Romulan Republican Force).

The ship was commanded from a bridge equipped with the following stations: one tactical officer with the rank of commander, a lieutenant commander as additional tactical officer, one lieutenant-ranked science officer and engineer each, and one engineering ensign. ( [Year of Hell Lockbox])

History
In the 2370s decade, Nihydron warships protected Nihydron interests in the disputed territory of spatial grid 005. 

In the year 2410, the Nihydron were affected by the eradication campaign of the Vaadwaur Supremacy. 

Nihydron destroyers returned to the astropolitcal stage as major resources when the Krenim survivors allied themselves with the Alpha Quadrant Alliance to fight their common enemy, the Iconian Empire and its servitor races. When the Nihydron became a founding member of the Krenim Coalition, the Nihydron destroyer became one of of its three primary ship classes. ( [Year of Hell Lockbox])

Alternate timelines
In an alternate timeline were the Krenim temporal scientist built the Krenim temporal weapon ship  Kyana Prime and launched it in the 22nd century, two Nihydron warships were part of a combined Federation-Mawasi-Nihydron fleet engaging the Kyana Prime. When their temporal shields, which had been provided by the Federation starship USS Voyager, failed, the Krenim weapon ship erased the two warships from the timeline.