D9 class dreadnought

For other uses, see D9 class.

D9 class
Affiliation:	Imperial Klingon Defense Force; Khitomer Alliance
Type:	battleship, dreadnought battlecruiser
Service period	2270s; from 2410
Specifications
Maximum speed:	quantum slipstream and transwarp velocities (25th century)
Cruising speed:	warp factor 9.9+ (25th century)
Armaments:	disruptor cannons and beam arrays, photon torpedo launchers Khitomer Alliance
Defences:	cloaking device, deflector shields
Systems:	disruption pulse emitter, cruiser communication array

The D9 class was a 23rd century Imperial Klingon starship type, a battleship in Klingon Defense Force service around the 2260s and 2270s decades.

During a 25th century front of the Temporal Cold War in 2410, the KDF and the Ferengi-operated Lobi Crystal Consortium revived the D9 class as a tier 6-rated dreadnought battlecruiser and shared it with the Khitomer Alliance powers the Empire was part of. (STO website: Agents of Yesterday: Undiscovered Lock Box and Lobi Ship Stats)

History and specifics

The D9 class at Caleb IV in 2270.

This class was known to Klingons as the "Lord of the Battlefield" in the 23rd century. In the 2410s, the class utilized cutting-edge technology in the conflicts of the modern era. A hangar bay with DuQwI'-class fighters added to its arsenal, including the disruption pulse emitter. Vessels of the class were a match for the Atlas-class dreadnought cruiser of Federation Starfleet and the Thrai-class dreadnought warbird of the Romulan Star Navy. (STO website: Agents of Yesterday: Undiscovered Lock Box and Lobi Ship Stats)

At the time, the frequently upgraded D7 class was remained the Empire's flagship type. (TOS novel: Agents of Influence)

Visually, the D9-class dreadnought battlecruiser anticipated the 24th century Negh'Var-class starship. Despite the similarity, components between the D9 and Negh'Var were not interchangeable. (STO - Agents of Yesterday mission: "First City")

Technology

As a ship of the Khitomer Alliance active in the early 25th century, a vessel of this type could attain quantum slipstream and transwarp velocities. Its cruising speed was in excess of warp factor 9.9. It was protected by a deflector shield. Additional systems included a cloaking device, the cruiser communication array and disruption pulse emitter.

The ship's deflector array was a 23rd century-style neutrino deflector array Mk. X. Impulse engines, the field-stabilizing warp core and the 23rd century-inspired shield were also rated Mk. X.

All weapon systems were inspired by 23rd century-era Klingon disruptor and photon torpedo weaponry. Of the five forward-facing weapon arrays, one was a disruptor beam array and another a disruptor dual beam bank as well as a pair of cannons - dual cannons and dual heavy cannons, respectively.

One photon torpedo launcher was slotted fore and aft, each. Two additional astern weapons included a disruptor beam array, and a disruptor turret with 360-degree firing arc.

The ship's hangar bay included Klingon shuttlecraft but also a dedicated wing of support craft for space combat, the DuQwl'-class fighters.

Livery

In the 25th century, the hull design of the D9-class dreadnought battlecruiser allowed its commanding officer to choose from different livery materials. These could be modified at shipyards. The material options included numbered Types, Upgrade and Veteran. Owning other 2250s-era ships unlocked additional materials. (STO - Agents of Yesterday mission: "First City")

Furthermore, the installation of deflector shields from specific factions modified the hull appearance, including shields from the Reman Resistance, the Breen Confederacy and the Dominion. (STO missions: "Coliseum", "Cold Storage", "Boldly They Rode")

Personnel

In the 25th century, a commanding officer ranked lieutenant commanded a smaller bridge crew. Additional bridge officer careers opened up as the commanding officer's rank increased. The default crew included an engineering-division commander, a lieutenant commander of combined tactical and temporal operative service, and three lieutenants - an engineer, a science officer and a third of any branch. (STO - Empire mission: "First City")

History

Vessels of this class participated in the Battle of Caleb IV in 2270. The KDF defeated Starfleet at Caleb IV with a ruse and Na'kuhl support. (STO - Agents of Yesterday mission: "The Battle of Caleb IV")

The class returned to service in the year 2410, serving alongside their cousins of upgraded D7- and Negh'Var-classses. (STO website: Agents of Yesterday: The Undiscovered Lockbox!)

Appendices

External links

• D9 Dreadnought Battlecruiser article at Star Trek Online Wiki.

• "The Undiscovered Lockbox!" dev blog at the ARC website
• "Undiscovered Lock Box and Lobi Ship Stats"