B'REL-Class scouts version
Classification: Scout
Class: B'rel
Number Constructed: 238
Number Destroyed: 72 Length: (f)88m (c)88m (a)88m
Position: (f)light position, (c)ruise (a)ttack
Width: 122.91m 130.0m 103.44m
Height: 32.47m 21.66m 50.48m
Displacement: 46.300 mt
Ship Complement: 12
Brigs: 6
Transporter: 6 person
Speed:
Optium Speed: Warp 5
Cruising Speed: warp 7
Maximum Speed: Warp 9.25
Weapons:
Disrupters: 2 Banks
Disrupter Output: 2.6x10^12W / 1.3x10^12W Cont.
Photon Torpedo Tubes: 1
Photon Torpedoes: 12
Defense:
Shield Holdoff: 2.94x10^12W
Shield Refresh: 9.4x10^11W
ECM: Cloaking Device

Klingon bird-of-prey

Ship used by the Klingon Defense Force, capable of both atmospheric entry and landing, as well as warp-speed interstellar travel. At least two classes of this ship have been in use since at least 2286, the smaller D-12 and B'rel -class scouts and the larger K'Vort -class cruisers. All were equipped with cloaking devices. The B'rel and D-12 class ships had a complement of about a dozen officers and crew. (Star Trek III: The Search for Spock). An experimental uprated version of this ship was developed prior to 2293 in an effort to allow the use of torpedo weapons while the cloaking device was engaged. This prototype vessel was commanded by General Chang, who used it in his unsuccessful attempt to obstruct the Khitomer peace conference. (Star Trek VI: The Undiscovered Country). The D-12 class scout vessel was built in the 2350's and was eventually retired from service because of defective plasma coils in their cloaking device. Lursa and B'Etor used an old D-12 class bird-of-prey in 2371 when they assisted Dr. Tolian Soran in his plans. (Star Trek: Generations). The term Bird-of-Prey was originally established to be Romulan in "Balance of Terror" (TOS). An early draft of Star Trek III had Commander Kruge stealing a Romulan ship for his quest against Kirk. The Romulan connection was dropped in later drafts, but the ship somehow remained a Bird-of-Prey. The ship was designed by Nilo Rodis and built at ILM. It was first seen in Star Trek III, and also used inStar Trek IV, V, and VI. Class names are from "Yesterday's Enterprise" (TNG) for K'Vort, "Rascals" (TNG) for B'rel, and Star Trek: Generations for D-12. Klingon Birds-of-Prey have appeared in "A Matter of Honor" (TNG), "The Defector" (TNG), "Yesterday's Enterprise " (TNG), "Reunion" (TNG), "Redemption" (TNG), and "Unification, Parts I and II" (TNG).

Bird of Prey K'Vort  class

Classification: frigate
Class: K'vort
Number Constructed: 198
Number Destroyed: 31
Length: (f)110m (c)110m (a)110m positions : (f)light position, (c)ruise (a)ttack
Width: 153.61m 162.50m 129.30m
Height: 40.58m 27.07m 63.10m
Displacement: 90.285 mt
Ship Complement: 12 Crew. 36 Troops
Brigs: 12
Transporter: 6 person
Speed:
Optium Speed: Warp 6
Cruising Speed: warp 8
Maximum Speed: Warp 9.35
Weapons:
Disrupters: 2 Banks
Disrupter Output: 3.0x10^12W / 1.5x10^12W Cont.
Photon Torpedo Tubes: 1
Photon Torpedoes: 36
Defense:
Shield Holdoff: 3.54x10^12W
Shield Refresh: 1.4x10^12W
ECM: Cloaking Device

K'Vort class version: largest design of  Bird of Prey

Ship used by the Klingon Defense Force, capable of both atmospheric entry and landing, as well as warp-speed interstellar travel. This ship have been in use since at least 2286, and is a larger version of the smaller D-12 and B'rel -class scouts. Is equipped with cloaking devices. The term Bird-of-Prey was originally established to be Romulan in "Balance of Terror" (TOS). Class names is from "Yesterday's Enterprise" (TNG) .