NX Class
NX side

Launched in 2151 after thirty years in development, Enterprise was the first Human-built vessel capable of reaching warp factor 5. Under the command of Captain Jonathan Archer, it conducted many exploratory missions in star systems near to Sol and made first contact with several new races including the Andorians, Romulans, Klingons, and many others.

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Enterprise Impulse Engines   NX class ship building

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Starfleet's first warp 5 ship, the NX class, sometimes called the Enterprise class after the first ship of the class, the Enterprise, was a pioneer. The warp-5 engine that had been in development for three decades was a marvel of it's time. No longer did Earth ships have to creep along, taking years to get between near by stars. The class had comfort for her crew, new weapons for defense, and a transporter system that allowed equipment and even people to 'beam' to other ships and planets without the use of shuttle pods.

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Pegasus Firing
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The NX-class was a dream come true for Earth's Starfleet, and it allowed Humans to 'go where no man had gone before', without the Vulcans holding a leesh. Originally, Starfleet planned on a run of five ships, but with threats from the Klingons, Romulans, Suliban, and then most seriously from the Xindi, Starfleet planned a unit run of thirty starships.

These ships feature shuttle pods for travel between ships and planets, a new transporter systems, phas cannons, spatial torpedoes, photonic torpedoes after 2153, plasma banks, and the first warp-5 engines in the fleet. They are able to reach and explore star systems and nebula that had only been observed by telescopes, probes, and other races like the Vulcans before. They are bringing Humans fully on to the galactic stage for the first time and allowing them to make a name for themselves.

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A Vulcan and an Andorian ship flank NX-10
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2121: Earth's Starfleet issues a general design brief for a multi purpose vessel capable of exploration, combat, diplomatic and first contact missions. The general idea is for a modular starship. Enterprise class approved by as prototype explority cruiser. Permission for base designs are approved.

2123: Starfleet views the design schematics for the new class and after much deliberation, the primary design is approved and briefs for the propulsion, computer, weapons and spaceframe parameters are sent out to design agencies for consultation. Warp five capable engine design is also approved, but the technology isn't available to Humans, and Vulcans refuse to offer advice.

2126: Spaceframe design is approved and full specifications are forwarded to the Jupiter Station, Warp-Five complex. Production begins for the Prototype ship, officially named Enterprise, NX-01.

2128: Chassis latching system passes Review 1. By the end of the year the spaceframe is 17% completed.

2131: Early in the year, computer cores arrive and are fitted to the Enterprise, now referred to as an NX class ship. By mid June, fusion reactors are on line and supplying primary power.

2134: Computer system are operating at 38% of maximum. System expected to become self aware within a year. Bridge module designed.

2136: Primary hull work complete. Theoretical Propulsions Dynamics labs sends functional test warpcore for fitting and alignment in the bare chassis.

2139: Habitat modules are attached. Chassis is completed.

2142: Computer systems are uploaded and tested. Primary modules are attached and outer hull of the saucer section nears completion. Bridge module attached to primary hull unit is brought to functional status.

2147: Impulse systems pass Review Three and being autonomous low level power control. Spaceframe is 92% completed.

2149: Computer system fully self aware and umbilical from the station are cut as the ship become self sufficient. Warp stress coating is applied. Final exterior markings and paint applied.

2150:  All primary tests have passed Review 4. Propulsion dynamics labs deliver a fully functional warpcore. Warpcore begins primary testing. Secondary Back up Generators are shut down and become Auxiliary system control.

2151: Warpcore passes Review Three and it tested to 80% peak. Enterprise is officially commissioned by Starfleet during a brief Ceremony. Bridge plaque is put in pride of place and Captain Jonathan Archer takes command of the Ship. Enterprise begins shakedown cruise estimated to last a year.

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Technical Specifications for NX Class ships

expected duration: 50 years
time between resupply: 1 year
time between Refit: 2 years
category: Exploreritory Cruiser

Weapons:
   
3 type-I phase cannons (2 forward, 1 aft)
    4 type-IV plasma banks (all forward)
    6 torpedo tubes (4 forward, 2 aft) (20 Photonic and 20 Spatial torpedoes)

shields:
None

armor:
EM Polarized hull armor defense system
Class 1 Hull conformal shielding system (after 2161)

Personnel:
officers: 12
enlisted crew: 70
civilians: 10

Speed:
cruising speed: Warp 3
maximum speed: Warp 4.5
emergency speed: Warp 5 (6 hours)

Auxiliary Craft:
shuttlebays: 1
shuttles: 4

Dimensions:
height: 34 meters
width: 136 meters
length: 230 meters
decks: 7

Additional Information:
16 ships were built out of the 30 originally planned. Three were destroyed, the rest decommissioned. 2 are in the Starfleet Museum today, NX01 Enterprise and NX10 Pegasus.