2254 – D9 (Seeker)

Class: VIII Year: 2254
Ship Source: FASA Ship Datasheet: Coming Soon

The D-9 cruiser was brought into service during the Four Years War to act as a research vessel. For years, the Klingon Empire had been halted in its attempts at expansion. To the rimward lay the Federation; towards the trailing arm were the Romulans; and it has been speculated that to the core-ward lay some unknown power able to hold the Klingons in check. This left the spinward area, as yet not fully explored. Expansion into this void had been slow due to the great distances from the homeworld of Klinzhai and the apparent lack of suitable worlds for conquest, but the desire to outflank the Federation altered that. The newly constructed D-9 cruiser was intended to lead this effort.

The D-9A prototype of 2254 was considered to be undergunned and was dropped from production even before it had been commissioned. An upgunned version, the D-9B with mainly defensive weaponry, was commissioned in 2255 and was immediately sent into the new expansion area. These ships and their accompanying scout ships were to map new areas and evaluate the cultural levels of any races encountered. The war with the Federation ended one year after the D-9B’s entered service, and the sense of urgency for the flanking expansion effort diminished. The flanking movement is portrayed in a Star Fleet commanders test known as Operation Armageddon.

After the end of the Four Years War, most of the facilities set up to produce these research cruisers were converted over to warship designs, accounting for the small number produced. The D-9, named “Seeker” from the Klingon “z’gal”, is manufactured at Gnuu Re, with production at three per year. These vessels are still operating in the spinward areas. Of the 82 D-9’s built, 68 remain in active service, 9 have been destroyed, 3 are listed as missing, and 2 have been sold to private interests in the Triangle.

Class: VIII Year: 2252
Ship Source: FASA Ship Datasheet: Coming Soon

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2251 – D10 (Riskadh)

In 2251, the D-10 cruiser, the design of which was strongly influenced by the D-7, was commissioned into service. The Klingon Imperial Command hoped to counter Star Fleet’s Constitution class cruisers with this new vessel. The Four Years War was in its second year, and the Klingons had learned some of their lessons well. The D-10 featured a sturdy superstructure and the most effective shields the empire had to offer. The fore and aft-mounted disruptors were far superior to the Federation lasers, but were not as destructive as the Federation’s accelerator cannons.

The D-10 used the same command pod as the D-7, thus eliminating the need for additional production facilities. Like the D-7s pod, that of the D-10 is capable of being jettisoned and has similar sub-light maneuvering and life support capabilities. In 2253, Star Fleet captured a pod that had been jettisoned during the Battle of Kesse 16 months earlier; the crew were alive and as well as could be expected.

The main hull of the early D-10s contain the engineering section, shuttlebays, crew quarters, and assault troop hypothermia capsules; later models have no troop-carrying capabilities but instead have large research facilities. The warp engines are mounted on short pylons and are jettisonable. With the additional removal of the hypothermia capsules, the ship is capable of running on its impulse power alone for up to one year. The shuttle hangars are located on the upper wing surface of the main hull and are seen as two large doors. Directly aft of these doors are located the aft firing disruptors; aft-firing photon torpedo tubes are located at the stern of the vessel just below the impulse exhaust port.

The D-10 is the only Klingon warship whose class name honors a Klingon family line: the Riskadh line, which died with its founder, Kahless the Unforgettable, the greatest of all emperors. D-10s are manufactured at the Taamar, Gnuu Re’, Fonawl, Z’hai, and Mustaka facilities. The combined production rate is 14 D-10Ds, 12 D-10Gs, and 10 D-10Hs per year.

The D-10A first entered service in 2251, the first ships being rapidly sent into the Four Years War, where they proved to be the most powerful and feared ships in the Klingon Imperial Navy.

The model used a powerful warp engine, but mounted a fairly weak impulse system, the only real shortcoming of the vessel; the main engines allowed the ships to cruise at Warp 6, with emergency speeds as high as Warp 8. The weapons system consisted of six individually-mounted KD-6 disruptors and two aft-
mounted KD-3s, giving the cruiser an offensive range capability 80,000 km greater than Federation warships. 

With the Klingons having range superiority, if it had not been for the superior tactics of the Star Fleet commanders, the Four Years War might have turned out much differently. Star Fleet commanders were able to neutralize the range superiority in many cases, however. Klingon tactics were to send a D-10 with a small escort of three-to six destroyers into a system to secure it. Federation commanders would leave the system, making it appear unprotected; they would then return from several different directions and take the unsuspecting Klingons in flanking attacks. This tactic was not always successful, but it did deter the Klingons from mounting many attacks into the interior of Federation space. In the last months of the war, the Klingons faced the newly-developed phaser and photon torpedo, and the days of the D-10 as the “Queen Of Battle” were over. 

Of the 444 D-10As built, 27 are in reserve fleets, 268 have been converted to D models and 14 to F models, 106 have been destroyed, 8 have been captured (6 by Star Fleet and 2 by the Romulans), 6 are listed as missing, 7 have been scrapped, 6 have been sold to ranking families within the Empire, and 2 have been sold to private interests in the Triangle.

The first modification to the D-10 came in 2254, when the KIB-2 impulse drive system was replaced with the KID-2. Though the new D-10B was ordered into production, it never was produced in numbers because the KWE-2 warp drive system was brought into the navy’s inventory just as the new 8 models were ready for installation of their warp drives. These engines were installed, and, in 2260, the first D-10C was taken out for maneuver trials. In 2261, the completed ships were outfitted with the newly-created KD-9 disruptors, KP-4 photon torpedo, and the KSO shield systems, replacing the original equipment with upgraded systems. The D-10D entered service in 2262 with the simultaneous commissioning of 23 ships, the largest number of new ships to be commissioned at one time in known space.

The KWE-2 warp drive system allows the D-10D to achieve cruising speeds of Warp 7 and emergency speeds of Warp 8, even though it adds 30,000 mt to the overall weight. The KD-9 disruptors produce slightly less damage than the KD-6 models found on the D-10A, but they have an increased range of 20,000 km. The real increase in weapons power lies in the KP-4 torpedo, which is mounted fore and aft. The addition of so many new systems required an in- crease in the superstructure strength.

Of the 455 D-10Ds built, 389 remain in active service, 2 are used as training vessels, 47 have been destroyed, 2 have been captured by Star Fleet, 6 are listed as missing, 2 have been scrapped, I has been traded to the Romulans, 1 sold to the Orions, and 5 are in the service of ranking families of the Empire.

In the space of a few years,  the Klingons created 5 new warp drive engines, 2 impulse drive systems, 5 new disruptor types, 4 photon torpedo types, 5 shield systems (of which 2 used a trinary powertransformer), and 2 powerful computer systems. With all these new systems, the D-10F, incorporating many of them, was inevitable; it was commissioned in 2263. The KWE-3 engines produce 10% more power, and the KIE-1 impulse drive systems produce 50% more power than the systems installed on the D models, adding maneuverability. On Stardate 2/1312, the Klingons had acquired 14 Romulan plasma weapons of the RPL-1 type, and these weapons also were installed on the D-10F, instead of the photon torpedo. The KD-9 disruptors were replaced with KD-13s, increasing the range another 20,000 km, and the aft-firing KD-3s were replaced by 2 KD-9s and 2 KD-5s. The superstructure strength was increased by 16%, and the shields were upgraded.

After the completion of the D-10F models, the Klingons continued to use the Z’hai facility to construct D-10Gs, with two changes from the F model. The hypothermia capsules were removed and the area rebuilt as a laboratory facility, allowing the D-10G to act as a research cruiser in hostile areas where lightly-armed ships like the D-9 could be easily destroyed or damaged if attacked while alone. To further augment weaponry, fore and aft-firing photon torpedo bays were installed for the KP-4 torpedo to replace the RPL-1.

In 2267, the D-10H was commissioned, the first model that has an exterior change. Instead of mounting the old style command pod, the ship mounted the command pod from the L-9 frigate, making the class easier to identify on visual scan but a more potent adversary. This model mounts the new KIE-2 impulse drive system, giving it more maneuvering power than most ships in either the Romulan Navy or Star Fleet. The disruptors were all refitted to KD-1 3s, not only to give the vessels a longer range of fire in all directions but also to ease the maintenance chore. The photon torpedo bay was converted to fire the new KP-6, which causes as much damage as any of those employed by Star Fleet and twice the damage as any used by the Romulans. With this array of weapons, and with its strengthened superstructure, the D-10H is, by far, the most powerful of the class and also stronger than most others in space.

Class: VIII-X Year: 2251
Ship Source: FASA Ship Datasheet: Coming Soon
 

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D10A- D10G

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D10H

2256 – Warrior

The Warrior Class (classed by many as a DW – War Destroyer) was another of the classes that entered service during the Four Years War. The three engine arrangement was chosen to create a Destroyer which was capable of operating with the Federation Class Dreadnought which was due to enter service imminently.

The Warrior was armed with the latest Photon Torpedoes and Phasers, and also was equipped with the best in class warp propulsion systems. The price paid was a very limited range at full speed, this made the class dependent upon deuterium tankers which served to limit their utility when used at high speeds.

Class: TBC Year: 2256
Ship Source: Based on Starfleet Battles DW Ship Datasheet: Coming Soon

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2252 – Predator

In the late 2240’s a need was identified for smaller combatants which were designed to be extremely fast, well-armed, stealthy, and inexpensive to construct and operate. To meet this need, two different classes were proposed, the long range, powerfully armed, twin-nacelled Avenger class, and shorter ranged, less powerfully armed, single-nacelle  Predator class. In total the requirement was for one hundred ships of each design to be built at yards throughout the Federation. A number of new technologies developed for the Constitution and Pyotr Velikiy classes were to be used in these new classes, out notably including a scaled down version of the Pyotr Velikiy’s main sensor suite.

Design work on Avenger and Predator in late 2250. Although a smaller design, the configuration of the Predator was much like that of the physically larger Hermes/Saladin class of the 2240’s.

The warp power plant for both of new ships was  the new FWB-1 warp drive, coupled to the powerful FIB3 Impulse drive. The use of the same drive systems across both design resulted in further construction and cost efficiencies, and also led to the ships being provided with a good blend of power and manoeuvrability.

The primary hulls of both classes were nearly identical, and were 77-m in diameter. The primary  hulls held the bridge, the M1 computer core,  crew quarters, life support machinery, and cargo holds. The hull’s dorsal bulge housed the twin accelerator cannons (FAC3 on both designs. Unlike the larger Constitution and Pyotr Velikiy classes the bridge module was slightly submerged and slightly forward of the hull’s centre. Mounted either side of the bridge were emitters for the FSF shield system, these were mounted in this unconventional external position because of the small size of the hull. The rear of the primary hull housed the shuttlecraft bay, which extended along the connecting dorsal. Embedded in the rim of the primary hull was an emission suppression system which formed a key part of the  stealth capabilities of the designs.

To the rear of the primary hull was a thick, deep connecting dorsal structure. In Avenger, the neck held the FIB3 impulse drive, and deuterium tanks. Beneath the neck was the small secondary hull mounting the FWB1 warp system with the distinctive Bulldog warp nacelles attached to either side. In Predator, the connecting dorsal was occupied mainly by engineering spaces for the impulse deck, the FWB1 warp drive connecting directly to the single centerline Bulldog warp nacelle. The single engine configuration of the Predator decreased the range and maximum warp speed but improved performance at impulse.

The the large numbers of ships ordered meant that construction was shared among six shipyards throughout the Federation, despite this all ships were built to the same exacting standards with many important subsystems manufactured at Mars and shipped to the yards for assembly.  The six yards competed to construct ships most quickly or with the fewest flaws, the best performance being that of Andor’s Shesshik 7 facility which assembled and launched USS Drummer (NCC-D124) in 22 days.

USS Predator (NCC-D200) commissioned in early 2252, with USS Avenger (NCC-D100) following late the same year. Both classes immediately found use in a wide range of roles. In many cases they were used for policing duties, including anti smuggling and piracy patrols. Such actions freed larger ships, such as those of the Valley Forge, Constitution, and Pyotr Velikiy classes for duties in the burgeoning four years war. These ships were also used in a defensive role in areas away from the Klingon frontier, again to release larger combatants for service elsewhere. The Avenger class in particular also saw military usage in the Klingon theatre of operations.

Post war these ships were occasionally based at the borders of Federation territory in a pure defensive role, but more frequently they used to lead and escort survey, mining and colonisation vessels following in the wake of Starfleet heavy cruisers. The latter part of the war saw many these ships rearmed with FH2 phasers and FP1 photon torpedoes, which effectively doubled the combat efficiency of both designs.

A definitive refit program in 2258 saw the adoption of the new FWB2 in both designs, further improving performance and giving these classes an appreciable boost in available power.

To their crews and to Starfleet, the Avenger and Predator classes truly lived up to the description applied to a class of destroyer 300 years ago on Earth: “magnificent in appearance, majestic in movement, menacing in disposition.” These destroyers continued to serve in Starfleet until 2302, following life-extension refits in the early 2280s.

The Avenger-class destroyer USS Matador (NCC-D141) and the Predator-class destroyer USS Berserker (NCC-D208) are on display at the Starfleet Museum.

  • Class: VI
  • Year: 2252
  • Ship Source: Starfleet Museum
  • Ship Datasheet: Download PDF

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Commissioned Ships
USS Predator NCC-D200
USS Aggressor NCC-D201
USS Ambusher NCC-D202
USS Annihilator NCC-D203
USS Archer NCC-D204
USS Attacker NCC-D205
USS Basher NCC-D206
USS Battler NCC-D207
USS Berserker NCC-D208
USS Biter NCC-D209
USS Blaster NCC-D210
USS Blazer NCC-D211
USS Blocker NCC-D212
USS Bombardier NCC-D213
USS Boomer NCC-D214
USS Brawler NCC-D215
USS Breaker NCC-D216
USS Bruiser NCC-D217
USS Buccaneer NCC-D218
USS Cannoneer NCC-D219
USS Charger NCC-D220
USS Charioteer NCC-D221
USS Chevalier NCC-D222
USS Conqueror NCC-D223
USS Crusader NCC-D224
USS Crusher NCC-D225
USS Cuirassier NCC-D226
USS Devastator NCC-D227
USS Disrupter NCC-D228
USS Dominator NCC-D229
USS Enforcer NCC-D230
USS Executor NCC-D231
USS Fencer NCC-D232
USS Fighter NCC-D233
USS Freebooter NCC-D234
USS Gladiator NCC-D235
USS Grenadier NCC-D236
USS Growler NCC-D237
USS Gunner NCC-D238
USS Hunter NCC-D239
USS Hurler NCC-D240
USS Hussar NCC-D241
USS Infiltrator NCC-D242
USS Interceptor NCC-D243
USS Intimidator NCC-D244
USS Invader NCC-D245
USS Jäger NCC-D246
USS Jouster NCC-D247
USS Lancer NCC-D248
USS Marauder NCC-D249
USS Mauler NCC-D250
USS Musketeer NCC-D251
USS Persecutor NCC-D252
USS Preserver NCC-D253
USS Privateer NCC-D254
USS Provocateur NCC-D255
USS Punisher NCC-D256
USS Pursuer NCC-D257
USS Raider NCC-D258
USS Ranger NCC-D259
USS Raptor NCC-D260
USS Rattler NCC-D261
USS Ravager NCC-D262
USS Resister NCC-D263
USS Rocketeer NCC-D264
USS Roughrider NCC-D265
USS Sapper NCC-D266
USS Scorcher NCC-D267
USS Sharpshooter NCC-D268
USS Sidewinder NCC-D269
USS Signaller NCC-D270
USS Skirmisher NCC-D271
USS Slasher NCC-D272
USS Slayer NCC-D273
USS Slinger NCC-D274
USS Smasher NCC-D275
USS Smiter NCC-D276
USS Snapper NCC-D277
USS Sniper NCC-D278
USS Spanker NCC-D279
USS Spiker NCC-D280
USS Spoiler NCC-D281
USS Stalker NCC-D282
USS Stinger NCC-D283
USS Striker NCC-D284
USS Terminator NCC-D285
USS Thrasher NCC-D286
USS Thriller NCC-D287
USS Thruster NCC-D288
USS Thumper NCC-D289
USS Thunderer NCC-D290
USS Tormentor NCC-D291
USS Trapper NCC-D292
USS Trooper NCC-D293
USS Trouncer NCC-D294
USS Usurper NCC-D295
USS Vanquisher NCC-D296
USS Vindicator NCC-D297
USS Warrior NCC-D298
USS Wrestler NCC-D299

2252 – Avenger

In the late 2240’s a need was identified for smaller combatants which were designed to be extremely fast, well-armed, stealthy, and inexpensive to construct and operate. To meet this need, two different classes were proposed, the long range, powerfully armed, twin-nacelled Avenger class, and shorter ranged, less powerfully armed, single-nacelle  Predator class. In total the requirement was for one hundred ships of each design to be built at yards throughout the Federation. A number of new technologies developed for the Constitution and Pyotr Velikiy classes were to be used in these new classes, out notably including a scaled down version of the Pyotr Velikiy’s main sensor suite.

Design work on Avenger and Predator in late 2250. Although a smaller design, the configuration of the Predator was much like that of the physically larger Hermes/Saladin class of the 2240’s.

The warp power plant for both of new ships was  the new FWB-1 warp drive, coupled to the powerful FIB3 Impulse drive. The use of the same drive systems across both design resulted in further construction and cost efficiencies, and also led to the ships being provided with a good blend of power and manoeuvrability.

The primary hulls of both classes were nearly identical, and were 77-m in diameter. The primary  hulls held the bridge, the M1 computer core,  crew quarters, life support machinery, and cargo holds. The hull’s dorsal bulge housed the twin accelerator cannons (FAC3 on both designs. Unlike the larger Constitution and Pyotr Velikiy classes the bridge module was slightly submerged and slightly forward of the hull’s centre. Mounted either side of the bridge were emitters for the FSF shield system, these were mounted in this unconventional external position because of the small size of the hull. The rear of the primary hull housed the shuttlecraft bay, which extended along the connecting dorsal. Embedded in the rim of the primary hull was an emission suppression system which formed a key part of the  stealth capabilities of the designs.

To the rear of the primary hull was a thick, deep connecting dorsal structure. In Avenger, the neck held the FIB3 impulse drive, and deuterium tanks. Beneath the neck was the small secondary hull mounting the FWB1 warp system with the distinctive Bulldog warp nacelles attached to either side. In Predator, the connecting dorsal was occupied mainly by engineering spaces for the impulse deck, the FWB1 warp drive connecting directly to the single centerline Bulldog warp nacelle. The single engine configuration of the Predator decreased the range and maximum warp speed but improved performance at impulse.

The the large numbers of ships ordered meant that construction was shared among six shipyards throughout the Federation, despite this all ships were built to the same exacting standards with many important subsystems manufactured at Mars and shipped to the yards for assembly.  The six yards competed to construct ships most quickly or with the fewest flaws, the best performance being that of Andor’s Shesshik 7 facility which assembled and launched USS Drummer (NCC-D124) in 22 days.

USS Predator (NCC-D200) commissioned in early 2252, with USS Avenger (NCC-D100) following late the same year. Both classes immediately found use in a wide range of roles. In many cases they were used for policing duties, including anti smuggling and piracy patrols. Such actions freed larger ships, such as those of the Valley Forge, Constitution, and Pyotr Velikiy classes for duties in the burgeoning four years war. These ships were also used in a defensive role in areas away from the Klingon frontier, again to release larger combatants for service elsewhere. The Avenger class in particular also saw military usage in the Klingon theatre of operations.

Post war these ships were occasionally based at the borders of Federation territory in a pure defensive role, but more frequently they used to lead and escort survey, mining and colonisation vessels following in the wake of Starfleet heavy cruisers. The latter part of the war saw many these ships rearmed with FH2 phasers and FP1 photon torpedoes, which effectively doubled the combat efficiency of both designs.

A definitive refit program in 2258 saw the adoption of the new FWB2 in both designs, further improving performance and giving these classes an appreciable boost in available power.

To their crews and to Starfleet, the Avenger and Predator classes truly lived up to the description applied to a class of destroyer 300 years ago on Earth: “magnificent in appearance, majestic in movement, menacing in disposition.” These destroyers continued to serve in Starfleet until 2302, following life-extension refits in the early 2280s.

The Avenger-class destroyer USS Matador (NCC-D141) and the Predator-class destroyer USS Berserker (NCC-D208) are on display at the Starfleet Museum.

  • Class: VI
  • Year: 2252
  • Ship Source: Starfleet Museum
  • Ship Datasheet: Download PDF

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Commissioned Ships

USS Avenger NCC-D100
USS Advisor NCC-D101
USS Ambassador NCC-D102
USS Arbiter NCC-D103
USS Aviator NCC-D104
USS Barker NCC-D105
USS Bounder NCC-D106
USS Bustler NCC-D107
USS Challenger NCC-D108
USS Chancellor NCC-D109
USS Chaser NCC-D110
USS Commander NCC-D111
USS Confounder NCC-D112
USS Conjurer NCC-D113
USS Contender NCC-D114
USS Counselor NCC-D115
USS Courier NCC-D116
USS Dancer NCC-D117
USS Darter NCC-D118
USS Dasher NCC-D119
USS Dazzler NCC-D120
USS Defender NCC-D121
USS Detector NCC-D122
USS Dodger NCC-D123
USS Drummer NCC-D124
USS Engineer NCC-D125
USS Explorer NCC-D126
USS Flasher NCC-D127
USS Flyer NCC-D128
USS Forester NCC-D129
USS Galloper NCC-D130
USS Governor NCC-D131
USS Harbinger NCC-D132
USS Harvester NCC-D133
USS Highlander NCC-D134
USS Igniter NCC-D135
USS Inquisitor NCC-D136
USS Inspector NCC-D137
USS Liberator NCC-D138
USS Marcher NCC-D139
USS Mariner NCC-D140
USS Matador NCC-D141
USS Mentor NCC-D142
USS Messenger NCC-D143
USS Navigator NCC-D144
USS Observer NCC-D145
USS Outlander NCC-D146
USS Pathfinder NCC-D147
USS Patroller NCC-D148
USS Peacemaker NCC-D149
USS Persuader NCC-D150
USS Pioneer NCC-D151
USS Piper NCC-D152
USS Prancer NCC-D153
USS Predictor NCC-D154
USS Protector NCC-D155
USS Provider NCC-D156
USS Questor NCC-D157
USS Racer NCC-D158
USS Reporter NCC-D159
USS Rescuer NCC-D160
USS Responder NCC-D161
USS Revolver NCC-D162
USS Roarer NCC-D163
USS Rover NCC-D164
USS Runner NCC-D165
USS Saviour NCC-D166
USS Schneider NCC-D167
USS Searcher NCC-D168
USS Seeker NCC-D169
USS Senator NCC-D170
USS Skydiver NCC-D171
USS Sorcerer NCC-D172
USS Spangler NCC-D173
USS Sparkler NCC-D174
USS Speaker NCC-D175
USS Speeder NCC-D176
USS Spinner NCC-D177
USS Springer NCC-D178
USS Sprinter NCC-D179
USS Stargazer NCC-D180
USS Strider NCC-D181
USS Strummer NCC-D182
USS Surveyor NCC-D183
USS Temblor NCC-D184
USS Tracker NCC-D185
USS Trailblazer NCC-D186
USS Traveller NCC-D187
USS Trekker NCC-D188
USS Trumpeter NCC-D189
USS Tusker NCC-D190
USS Upholder NCC-D191
USS Venturer NCC-D192
USS Victor NCC-D193
USS Volunteer NCC-D194
USS Voyager NCC-D195
USS Wanderer NCC-D196
USS Windjammer NCC-D197
USS Winner NCC-D198
USS Wrangler NCC-D199

2253 – Osprey

The Osprey class was an escort design created by Chandley Works, and put into mass production during the Four Years War in 2253. As with other wartime builds the class was built to mercantile hull standards, but it was so successful that postwar another batch built to Starfleet standards was ordered to replace the war weary escort fleet.

To maximise production, the Mk1 retained the tried and trusted L14 computer, and used a mix of FL5 and FL6 lasers. At a cost of 261 MCr the Osprey Mk1 was arguably one of the most cost effective combat vessels produced during the war. The Mk1 continued in production alongside the Phaser armed Mk2 which commenced construction in 2255, the Mk1 was actually better armed than the later model and also was only slightly less combat efficient – but two Mk1s could be produced for the cost of a single Mk2 and wartime economics and limits on the production of the new phasers ensured the older model continued in production until 2259, while the Mk2 ceased production in 2258.

2261 saw the definitive Mk3 enter service, equipped with the M1 computer and much enhanced weaponry and shields, the Mk3 soon became the standard escort version. A number of older vessels were refitted to this standard.

Many of the early Ospreys have been sold on to act as Police and Customs vessels, or to allied powers were they are frequently used in a light destroyer role.

The success of the Mk1 Osprey and its survival in production after the Mk2 is clear testimony to the well balanced and cost effective nature of the earlier version – traits which served the beleaguered Starfleet of the four years war very well.

Class: IV
Year: 2253
Ship Source: Based on early concept for Kiaga class PA
Ship Datasheet: Download PDF

2251 – Stellarford II (Assault)

“The Stellarford II (Mk4) was an attempt to restart production using new technologies in the shape of the FWH-1 warp drive. However only five new build ships were completed before the shipyard went bust due to the high costs of building the class compared to newer modular vessels, a further hull was abandoned while 60% complete. These five ships were procured by Mars shipping as part of the civilian reserve fleet program, which saw Star Fleet underwrite a proportion of the cost of acquisition of the ships in return for them being made available in times of emergency.

The performance of the Mk4 prompted Star Fleet to offer to underwrite the conversion of Mk3 ships to the standard, again in return for use of the ships in times of war. At the time the conversion of a such a number of large elderly ships was thought to be pointless, but with hindsight it can be seen that it was a perfectly timed program. 20 ships were modified to this mark by 2247, and that was planned to be the end of the program.

Visually, the Mk4 could be easily distinguished from the earlier versions as the short FFTL-3B nacelles were replaced with the much longer dilithium energised FWH-1 nacelles. The more modern construction and materials of the nacelles meant that despite their increased size they massed substantially less, meaning the class reverted to Class IV mass (unladen) and Class VI (Laden).

The increasing hositilities with the Klingon Empire prompted Star Fleet to reassess its needs for assault ships, and in 2251 an incomplete new build Mk4 Stellarford Class liner was taken in hand by Star Fleet Division and completed to Mk5 standards. The Mk5 added fore and aft accelerator cannons in the former bow and stern observation decks, as well as two pairs of lasers covering all arcs fore and aft at the top of the ‘sail’ assembly. These weapons were intended for use in self defence only, as part of the new role of assault ship. Later that year the six newest remaining Mk3s were converted to this standard, as well as four of the new build Mk4s and a pair of rebuilt Mk4s. In total 13 ships commissioned as Mk5s.

Class: IV-V Year: 2251
Ship Source: Spaceflight Chronology Ship Datasheet: Download PDF

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