2148 – Thofsin

The Thofsin class battlecruiser was 360 meters long and had a standard crew complement of 86. The ship was heavily armed, featuring particle cannons, but it lacked torpedo launchers. In total some 415 ships of this class were built.

The hull was made of duranium alloy. The deflector shields were strong for ships of the era, but the hull was weaker and particularly vulnerable when the shields were down because it lacked hull plating that could be polarized.

Because prior to the advent of the Federation, the Andorian empire was on the brink of war with the Tellarites and Vulcans, the battlecruiser was designed for war as part of a strategy of deterrence.

The Thofsin class was the equivalent of the Vulcan D’Kyr class warship. Five particle cannon emitters were positioned on the fore, port, starboard, ventral and dorsal hulls. Each of the emitters had a 180 degree firing arc. The cannons could be fired as continuous beams and projectile-like bursts.

The main bridge was crewed by five officers. The commanding officer sat in a command chair. The officer’s stations were visible to the commander, this highly efficient bridge design was mirrored in new designs after the founding of Federation Starfleet.

The hull consisted of an engineering section with two weapon/engine pods mounted on wing-like pylon structures. Shuttle and cargo bays were housed in the central hull. A The forward hull section  housed crew areas and the main bridge.

The Kumari was one of the most notable members of this class, under Commander Thy’lek Shran.

Design from Star Trek Enterprise, Class name and some details from FASA.



2144 – Djartanna

The Djartanna class Destroyer was the mainstay of the Alpha Centauri space navy during the Romulan War, almost a thousand ships were built in total with 316 entering service with the Earth Starfleet.

Effectively a scaled up Zoenamy, the class was quick to build and highly manoeuvrable. Compared to contemporary Earth classes it was shorter ranged, which led to the odd situation of these ‘alien’ built vessels being used to defend colonies and the Terran system while the longer ranged Earth vessels performed fleet duties at longer ranges.


2143 – Zoenamy

With the outbreak of the Romulan War the Earth Starfleet was in desperate need of ships to supplement the fleet, and the shipyards of Alpha Centauri offered the cheap mass produced Zoenamy as a solution. The design had been developed to meet Alpha Centauri Space Navy requirements for a patrol vessel, and the long range of the design due to it’s efficient propulsion system meant that the design was well suited for adoption by the Earth Starfleet as an escort Corvette. The design was notable as being the first ‘alien’ design adopted by the Earth Starfleet in large numbers to act as an armed picket patrol vessel, some forty of the 119 ships built in total saw service in Earth Starfleet.

The Alpha Centauri Zoenamy class was the basis of the later of the highly successful Djartanna Class Destroyer.

Class: III Year: 2156
Ship Source: FASA (Romulan War Page 13) Ship Datasheet:


2141 – Cavalry

“The Cavalry Class entered service in 2141, and was the main Destroyer class in service until the advent of the Marshall Class. These ships gave sterling service, but have been overshadowed in history by the prolific Marshall Class. In terms of basic layout, these ships can be considered the precursor of later Destroyers and Scouts of the Saladin Class family.”

The Cavalry Class entered service in 2141 as the UESN’s primary destroyer type. Visually very distinctive with its boat like hull and single underslung warp nacelle, the class was a very familiar site throughout the period 2140s and 50s. The Class did have some notable advances, it was one of the first designed to have routinely jettisonable/reattachable warp nacelle, which meant that major work on the nacelle could be undertaken by simply swapping the nacelle assembly. As a design created during the ‘peaceful’ 2140s, despite its destroyer nomenclature, the class was used primarily for policing and customs work.

A limited upgrade in 2151, following encounters with the Klingons, equipped the ships with a lighter improved warp drive (still fusion based) and a modest increase in weapon capacity. The main improvement resulting from these changes was 50% reduction in energy cost during manouevering, allowing more power to be used for shields and weapons.

Heightening tensions with the Romulans led to a final upgrade in 2156, when one of the first mass produced M/AM powerplants replaced the fusion systems. This gave the ships space for further weapons upgrades, and a another 50% cut in maneouevering energy costs. The downside of the changes was that the shield had to be downgraded to an EDS-M to keep the class in its mass limits, however given the limited power available for shields, the effect of this change was minimal.

During the war, these ships were employed in second line roles, given the emergence of the far more powerful Torsk and Marshall clases, but they did as a result provide a valuable role in allowing the more modern classes to be directed to the front lines. All Cavalry class ships were retired at the end of the war, and as such none saw service in the UFP Starfleet.

Class: II Year: 2141
Ship Source: Image based on FASA design  (labelled as Marshall Class).
Stats by David Gaba
Ship Datasheet: Download PDF



2150 – U15 stelal’deletham (Defender of Stars) Class

The U-15A entered service in 2150 and the U-15B in 2151. In appearance, it was combination of the sleek hull of the U-9 and the wide wing of the U-13. Powered by the latest RFTL-4 warp nacelles it was the fastest ship in the fleet when it commissioned.

The ship was produced in two variants, the U-15A mounted twin plasma cannons, and the U-15B mounted cluster missiles instead. Both variants could carry a single star bomb for additional anti-ship punch. Generally, the ships were deployed in threes, with two U-15Bs to each U-15A.

On 14 October 2157 , a U-15 fired the first shot of the declared war, when it fired a single SB-2 star bomb into the UES Patton near Eta Leonis VI. The Patton had been assigned to await the response to the ultimatum delivered four months previously to the Romulan Star Empire by Admiral Gunther. Three U-15s closed in on the Patton, and it got only one message off before it was destroyed, but that message was War!

Most Romulan fleet actions in the war used U-15s as the main ship; on 17 March 2158 , two squadrons of U-15s fought an earth Alliance force of similar numbers to a tactical draw at Prantares, the Romulan fleet had been headed to Rigel to trade for urgently needed technical supplies.

U-15s made up a large part of the fleet that engaged the Earth forces near Gamma Hydra, which then engaged further forces under Admiral Larson on 02 May 2159 .

In all some 575 U-15s were built, 160 U-15As and, 340 U-15Bs, and 75 U-15Cs.

The U-15C first entered service in 2155. It was a squadron command ship, which mounted a smaller missile system to allow more room for command and control facilities. It was not successful in service, and was generally used as a standard cruiser instead as the flag bridge was too small to carry a coordinating staff of sufficient size.

A number of U-15s were later converted to U-21 configuration.

Class: VII Year: 2150
Ship Source: Steve Bacon/FASA Ship Datasheet: Coming Soon


2146 – U13 vastagor vastarum (Death Flyer) Class

The U-13, which entered fleet service in 2146, was one of the heaviest designs to see service in the Romulan fleet. It mated a hull based on that of the early U-7 class to a new wing structure mounting the new RFTL-3 warp nacelle. The U-13 was designed for a specific purpose; it was intended as a long-range patrol cruiser. The re-adoption of the large hull form allowed a bay to be fitted that carried one of the immense SB-2 star bombs and sufficient fuel for an extended individual patrol. 120 of the U-13As were built, and it performed sterling work in this role. Additionally, these ships carried out deep penetration raids with some success. While on patrol near Eta Leonis VI on 16 June 2156 , a U-13A received the ultimatum calling for the Romulan Government to stop the piratical attacks from Admiral Gunther.

The success of these penetration missions prompted the adoption of the U-13B. The U-13B (60 built) first commissioned in 2148. It carried three SB-2 star bombs in the weapons bay, but carried only half the fuel of the U-13A. These ships were employed as strike cruisers and as heavy weapon platforms alongside more conventionally armed lighter cruisers.

Desperate for a way to strike back at the Earth Forces the U-13C and U-13D were conceived in 2157. The U-13C carried no star bombs (but retained conventional weapons); the U-13D carried five star bombs, at the expense of a reduced range. The plan was to employ the U-13Cs as tankers to allow the U-13D to reach deep inside Allied territory. It was planned that two U-13Cs would support each U-13D. In total 50 U-13Cs and 24 U-13Ds were converted (40 U-13Cs and 6 U-13Ds were converted from U-13As, 10 U-13Cs and 18 U-13Ds were converted from U-13Bs).

The first mission of the U-13C/D combination saw 48 U-13Cs stage the fleet to a safe distance from Alpha Omega B. The 24 U-13Ds and 24 escorting U-13As proceeded to that planet and attacked on 25 July 2159 . The ensuing raid saw the fleet bombard the planet with 120 star bombs from the U-13Ds (and a further 24 from the U-13As in a diversionary attack). The Diversionary U-13As went in first and were wiped out by local defences, but the U-13Ds went into the gap left in the defences and struck. Over 20,000 military and civilian personnel were killed, and the planet was rendered uninhabitable. This proved to be the deepest incursion into Allied space.

The raiding force suffered a major loss while returning to base, during an in flight  refuelling operation one of the U-13Ds exploded, destroying the U-13C it was linked to, and taking a further 12 U-13Cs with it in the explosion that resulted. Fortunately, all but one of these had already dispensed their fuel loads, allowing the surviving ships to return to base. A raid on Earth was in preparation, when on 25 November 2159 an Allied force raided the Romulan shipyards at Manaraam, this was the deepest Allied incursion of the war, and was in response to the attack on Alpha Omega B. Ironically 18 of the ships destroyed in the raid were U-13Ds. This attack and the loss of the 13 tankers in one accident was effectively the death knell for the program, as insufficient numbers of U-13s remained to convert to U-13C or D standards. The remaining U-13Cs were later modified to carry two externally mounted Star bombs as U-13Es, but the war ended before they could be perfected.

Class: IX Year: 2146
Ship Source: Steve Bacon Ship Datasheet: Coming Soon


2144 – U11 “Greater Bird” Class

The first U-11 commissioned in 2144. It was a standard U-9 with a stretched hull. The hull extension allowed the fitment of weapon bay that allowed the internal storage of two star-bomb missiles.

Internally the U-11A mounted the same systems as the U-9A, and the warp drive system was the same as the earlier vessel (RFTL-2). The additional weight of the star-bomb missile launch system meant that the U-11A was slower and less efficient than its smaller cousin was.

Production of the U-11A was limited, as the U-13B introduced in 2148 did the same role much more effectively. In all just 40 ships were built. In 2157, the surviving 21 ships were fitted with RFTL-5 engines and became U-11B in a program that ran alongside the U-9B program.

The U-11 was employed mainly to interdict Allied Capital ships on penetration raids. The firepower given by the Starbombs made it devastating for a single salvo, but woefully under armed as soon as the two missiles had been fired if the target was not crippled or destroyed. Operation experience led to the ships being deployed in packs of three of four vessels to ensure a killer blow could be swiftly struck. Against individual targets this worked, but if engaging a capital ship with escorts, the end result was normally the loss of the pack.

The U-11B is notable for being the first ship class to use the then experimental R2L-1, a year before it’s formal acceptance into service.

Class: VII Year: 2144
Ship Source: Steve Bacon Ship Datasheet: Download PDF