B'rel class

The B'rel-class (also known as the K22B-class) was a type of Klingon bird of prey scout starship in service in the 23rd and 24th century.

They were classified as a class 1 vessel. (DS9 video game: Dominion Wars)

History
The B’rel class, first developed in 2270, is the second known Bird-of-Prey operated by the Klingon Empire, it builds directly on the successful design on the earlier Birds-of-Prey but includes ideas and technology taken from Romulan designs obtained in the short lived Klingon-Romulan alliance of the 23rd century, most notably a cloaking device (Reference Book: Starship Spotter).

The B'rel class not only remained in service well into the 24th century but also inspired a larger variation, the K'vort class.

Features
The B'rel class bird-of-prey features adjustable wings (which is predecessors have shown no evidence of) which can take on different positions to optimise the class for battle, warp speed, atmospheric flight and even landing (TOS movies/novelizations: The Search for Spock and The Voyage Home)

In 2293 one B'rel class ship, the IKS Dakronh, was modified to fire it weaponry whilst cloaked. Despite its advantages, this vessel was destroyed after only a few months of operation. (TOS movie/novelization: The Undiscovered Country)

Another feature present in recent versions of these craft, which may not be standard, was the introduction of Gravity mines that would latch on to and slow down enemy ships. (TNG games: Armada & Armada II)

Known vessels

 * IKS BaHwil'
 * IKS B'rel (IKC-9200, later renamed HMS Bounty by Federation prize crew)
 * IKS Ch'Tang (IKC-9237)
 * IKS Dakronh
 * IKS Fury
 * IKS guhMoh
 * IKS Kad'nra
 * IKS Ki'tang
 * IKS Koroth (IKC-8314)
 * IKS Korinar
 * IKS Krogshat
 * IKS Kruge
 * IKV K'ti'suka
 * IKS Malpara
 * IKS M'Char
 * IKS Mok'tal (IKC-9336)
 * IKS Ning'tao (IKC-9270, also known as IKS Ning'tau)
 * IKS N'Kghar
 * IKS Okrona
 * IKS Orantho (IKC-9212, also known as IKS Orintho)
 * IKS Plath
 * IKS RanKuf
 * IKS Slivin
 * IKS Tazhat (KL-1018)
 * IKS Vorka
 * IKS Wo'bortas
 * IKS Y'tem