2157 – Tannhauser

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When the first mass produced M/AM starship reactors were finally certified in March 2157, several existing classes of fusion-powered ships had already been redesigned and adapted to make use of the new technology. The smaller Krechet class was the first class to enter service, in April 2157. The Krechet was developed from the fusion powered Amarillo class.

Derivatives of Bison type hulls soon followed. The Tannhauser class battlecruiser (CHM-55) was the first of these. The first ship of the class, UES Tannhauser, entered service only 1 month after the UES Krechet.

The Tannhauser class cruiser were essentially lengthened Pioneer class ships. The design was further modified to use the new EFTL-4 warp dirve system, which had been designed for ships with displacements greater than 300,000 tons.

As with the Krechet class, the smaller amount of deuterium that needed to be carried for the far more efficient M/AM reactor system allowed a larger payload, including both weaponry and more powerful sensors and deflectors.

One notable feature of the class was the extreme forward placement of the nacelles in a “hammerhead” arrangement, which was done in an ultimately unsuccessful attempt to increase maneuverability at warp speeds.

The first three ships of the class, UES Tannhauser, UES Vicksburg and UES Marathon, commissioned into the fleet in May 2157, and all three participated in the Battle of Hell’s Gate in October 2157.

The 14 Tannhuaser class ships built continued to serve effectively throughout the war but were relegated to secondary roles when UESN became the basis of Starfleet in 2161.

The Tannhauser class heavy cruiser UES Hastings (CHM-58) is now on display at the Starfleet Museum.

  • Class: XVII
  • Year: 2157
  • Ship Source: The Starfleet Museum Ship
  • Datasheet: Download PDF

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Commissioned Ships

  • UES Tannhäuser CHM-55
  • UES Waterloo CHM-56
  • UES Vicksburg CHM-57 **
  • UES Hastings CHM-58
  • UES Agincourt CHM-59
  • UES Marathon CHM-60
  • UES Trafalgar CHM-61
  • Teutoburger Wald CHM-62 **
  • UES San Jacinto CHM-63 **
  • UES Little Bighorn CHM-64
  • UES Thermopylae CHM-65
  • UES Gettysburg CHM-66 **
  • UES Badr CHM-67
  • UES Shiloh CHM-68

** denotes lost or missing ships.

2154 – Pioneer

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The Pioneer Class was adapted from the Bison class cargo vessel, and at the Outbreak of the Romulan war was the Earth’s premier combat vessel. Despite her extreme size, caused by the massive fuel tanks, like all fusion powered ships she lacked range and relied on refuelling when on any long duration missions. The class performed valiantly during the early stages of the war.

  • Class: XVII
  • Year: 2154
  • Ship Source: The Starfleet Museum Ship
  • Datasheet: Download PDF

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Siegfried (II)

2242 – Siegfried Refit

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The Siegfried class was the first true dreadnought to enter service. As originally completed the class mounted the extremely powerful FLM-1 Cannon, this weapon was limited in terms of arcs of fire and recharge time, but used well was an extremely effective weapon. In 2242 some of the class were refitted to a more standard configuration due to delays in the Constitution class program, and were refitted with the new Unary shielding systems. In this revised configuration these ships gave valuable service for a number of years, although later on only in supporting roles

Class: XII Year: 2242
Ship Source: The Starfleet Museum Ship Datasheet: Download PDF

Siegfried (II).

Siegfried (I)

2235 – Siegfried

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The Siegfried class was the first true dreadnought to enter service. As originally completed the class mounted the extremely powerful FLM-1 Cannon, this weapon was limited in terms of arcs of fire and recharge time, but used well was an extremely effective weapon. In 2242 some of the class were refitted to a more standard configuration due to delays in the Constitution class program, and were refitted with the new Unary shielding systems. In this revised configuration these ships gave valuable service for a number of years, although later on only in supporting roles.

Class: XII Year: 2235
Ship Source: The Starfleet Museum Ship Datasheet: Download PDF

Siegfried (i)

Quetzalcoatl

2215 – Quetzalcoatl

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The Quetzalcoatl class marked the start of the evolution process of the Dreadnoughts. Building from features of  the abortive Battle cruiser projects of 2168 and 2210 the Quetzalcoatl class ships were the largest to enter service since the end of the Romulan War. The class differed from later Dreadnoughts in two ways, firstly it had a dual role as a Carrier, and secondly the third nacelle was only a small unit installed in the lower secondary hull. The class taught many valuable lessons used in later Dreadnought designs.
Class: XIV Year: 2215
Ship Source: The Starfleet Museum Ship Datasheet: Download PDF

Quetzlcoatl