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Ship Database

Ambassador Class Starfleet Starship

Category: Heavy Cruiser


Expected Duration: 80 years
Time Between Resupply: 4 years
Time Between Refit: 8 years

Officers: 115
Enlisted Crew: 585
Marines: 100
Passengers: 300
Maximum (Evacuation) Capacity: 1500

Cruising Velocity: Warp 6
Maximum Velocity: Warp 8.5
Emergency Velocity: Warp 9.5 (for 18 hours)

Length: 526 metres
Width: 320 metres
Height: 125 metres
Decks: 36

Auxiliary Craft
Shuttlebays: 2
   Danube Runabout: 2
   Delta Flyer Runabout: 1
   Type 11 Shuttle: 4
   Type 6 Shuttle: 2
   Type 8 Shuttle: 2
   Type 9 Shuttle: 4
   Type 15 Pod: 4
   Razor Fighter: 6
   Wyvern Hopper Transport: 2
   Captain's Yacht - Galaxy Captain's Yacht: 1

Beam Weapons
   Type 10 Phaser Array: 12
   Type 9 Phaser Bank: 4
   Deflector Shields
   Regenerative Shields
   Structural Integrity Field
Torpedo Launchers
   Burst Fire Torpedo Launcher: 4
      Photon Torpedoes: 360
      Quantum Torpedoes: 80

Once designed as a heavy cruiser, the Ambassador class has been downgraded to a cruiser in light of more modern, stronger starship classes being commissioned. The class remains one of Starfleet's larger types and has proven its reliability in service.

In the early 23rd century it became obvious to Starfleet that the Constellation class was more or less a failure. There were several ships of the class that remained in service but the class performed so poorly that Starfleet did not want to produce any more.

Instead, a new ship design had to be fielded. Starfleet was looking for a cruiser that was more capable than what developers had hoped the Constellation class would achieve. Also, the successful Constitution class was about ready to be phased out for age-related reasons and Starfleet was desperate for a capable replacement.

The result of a design competition was the Ambassador class, by the standards then the largest vessel of the Federation (and it would remain so until the advent of the Nebula class). Designed to be a multi-purpose cruiser many systems tested for the Ambassador class were later used for the Galaxy family as well.

Production of the class began in 2311, with a Constitution class vessel phased out of service for every new Ambassador class built. By the end of the first production run in in 2321 40 had been produced and all Constitution class vessels retired. The Ambassador class saw the introduction of two weapons systems that were revolutionary at the time, the phaser array, which is a group of dozens of phaser emitters combining their output with a firing arc significantly greater than that of a phaser bank, and the burst fire torpedo launcher, which was able to fire several torpedoes at once.

One of the handiest things for Starfleet about the Ambassador class was the vast space she carried for extra crew, Marines or colonists, with additional quarters and mess hall facilities as well as cargo bays for supplies. This led the Ambassador to be considered one of the most flexible vessels at that time serving with Starfleet, with it being capable of all the usual heavy cruiser roles, that of tactical support, exploration and major fleet combat operations, but also, if necessary, to function as a colony ship, Marine landing ship or a simple evacuation ship.

This led to a large production of the Ambassador with over 50 being produced in a period of 18 years, the next fifteen years saw a moderate building programme increase the total number of Ambassador class vessels to 150. The loss of the Enterprise-C during the battle of Narendra III to a small Romulan force, however, forced Starfleet to re-evaluate the Ambassador class and in 2348 a moderate refit programme was embarked upon, to provide the Ambassador with a better phaser armament, increasing the original 8 type IX arrays to 10 type IX.

This moderate refitting programme enabled the Ambassador to continue in service unchanged for the next twenty-five years, until 2363, whereupon the Ambassador, now over 50 years old, was in need of a major refit. That then resulted in a major increase in the starship's internal systems, with new power transfer systems as well as a new warp core and fusion reactors, resulting in a slight increase in her top speed and computer processing time. In addition her sensor and communications arrays were upgraded, providing the Ambassador with around double sensor range and triple accuracy as well as a longer communication range for all forms.

It was, however, the Dominion war that would prove the greatest challenge to the Ambassador class. With a large number in service but since downgraded to cruisers they would form the backbone of most Starfleet task forces during the war. The Ambassador performed much better than expected, however that did not prevent a relatively high number being lost to the Dominion. In 2373 the Federation had 137 Ambassador class vessels in service, but by the end of the war, just 73 remained serviceable. Thanks to a major recovery and repair effort over the next ten years, however, 14 more heavily damaged Ambassador class vessels were restored to service giving a total of 87 in service by 2387. The Ambassador class is expected to continue serving in the role of a cruiser well into the 25th century.

Deck Listing:

Deck Description
1 main bridge, Skipper's ready room, observation lounge, weapons locker, primary communications array, primary sensor array 
2 Skipper's quarters, Executive Officer's quarters, XO’s office, senior officers' quarters, CoB’s office, conference room , officers' mess, Chief Intelligence Officer’s office, intelligence centre 
3 VIP/guest quarters, diplomatic facilities, Chief Diplomatic Officer’s office, large conference room, auditorium, transporter room 1, holodecks 1 + 2, security station 
4 main shuttlebay, shuttle maintenance bay, Chief Flight Control Officer’s office, industrial replicators 1&2, cargo bays 1 & 2 
5 primary and secondary computer systems monitoring room, main computer core (level 1), core maintenance access, guest quarters, crew quarters 
6 transporter room 2, main computer core (level 2), core maintenance access, crew quarters, holodecks 3&4 
7 gymnasium, natatorium, mess hall, galley, crew quarters, main computer core (level 3), conference room 2, secondary tractor beam emitter 
8 crew quarters, child care facilities, school, computer and equipment storage bay, main computer core (level 4) 
9 primary life support and environmental control, supplementary crew / passenger quarters, emergency supply storage, secondary deuterium storage tanks, main computer core (level 5), core maintenance access 
10 security training holodecks 1-3, phaser ranges 1-6, armoury, Security Officer's office, brig, secondary communications array 
11 primary SIF generators, primary IDF generators, holodecks 5 & 6, supplementary crew / passenger quarters, scondary life support and environmental control 
12 replicator control, industrial replicators 3-5, sickbay, CMO's office, medical supply storage, medical labs 1+2, medical holodecks 1-5, supplementary crew / passenger quarters 
13 stellar cartography, astrophysics, astrometrics, astrometric sensor arrays, crew quarters , general purpose science labs 1-6 
14 sociology department, Counsellor's office, customisable science lab 1, chemistry labs 1 & 2, transporter rooms 3 & 4, crew quarters 
15 particle lab, geology lab, biology labs 1 & 2, customisable science labs 2 & 3, hazardous material storage, containment lab suites 1 & 2 
16 plant sciences department, arboretum, botany lab, hydroponics lab and gardens, main impulse engines, fusion reactors 1-9, engine control room, impulse engine maintenance access, Skipper's Yacht, Skipper’s Yacht’s staging zone, supply storage 
17 secondary sickbay, zoology lab, public replicators, customisable science labs 4-6, primary deuterium storage tanks, supplementary crew / passenger quarters 
18 primary deuterium storage tanks, crew quarters, auxiliary deflector control, maintenance bay 1, supplementary crew / passenger quarters 
19 fabricating shop, industrial replicators 6-10, primary deuterium storage tanks, deuterium injectors, supplementary crew / passenger quarters 
20 ship's stores, crew quarters, engineering hardware replicators, cargo rays 3-4, cargo transporters 3-4, supplementary crew / passenger quarters 
21 forward torpedo launcher, torpedo storage and loading, torpedo modification, computer research lab, torpedo assembly bay, secondary SIF generators, supplementary crew / passenger quarters 
22 adult classrooms, crew quarters, supplementary crew / passenger quarters, holodecks 7-10 
23 crew quarters, supplementary crew / passenger quarters, cargo bays 5 & 6, cargo transporters 5-6, maintenance bay 2 
24 tertiary life support and environmental control, supplementary crew / passenger quarters, cargo bays 7-10, cargo transporters 7-10 
25 shuttlebay 2, shuttle storage, shuttle lift systems, crew quarters, supplementary crew / passenger quarters, marine barracks, transporter rooms 6-14, secondary armoury 
26 graviton deflector generators, shuttle storage and maintenance, shuttle lift systems, supplementary crew / passenger quarters, cargo bays 11-15, cargo transporters 11-15 
27 main engineering (upper), Chief Engineer's office, primary navigational deflector, aft torpedo launcher, torpedo storage , tertiary SIF generators 
28 main engineering (central), graviton deflector generators, secondary hardware replicators, supplementary crew / passenger quarters, cargo bays 16-20, cargo transporters 16-20 
29 main engineering (lower), warp coil maintenance access, antimatter storage pods, tertiary deuterium storage tanks, large meeting room, supplementary crew / passenger quarters 
30 lateral sensor array, auxiliary computer core (level 1) , core maintenance access, supplementary crew / passenger quarters 
31 engineering parts and equipment storage, engineering labs, maintenance bay 3, auxiliary computer core (level 2), core maintenance access, supplementary crew / passenger quarters 
32 quarternary SIF generators, astrophysics lab, materials testing lab, auxiliary computer core (level 3), core maintenance access, supplementary crew / passenger quarters 
33 holodecks 11-20, supplementary crew / passenger quarters, secondary IDF generators 
34 secondary antimatter storage pods, antimatter generator, emergency food rations storage, emergency personnel transporter 2, emergency power facility, main tractor beam emitter 
35 sensor analysis labs, emergency personnel transporter 1, hazardous material storage and containment, sensor instrument bays, antimatter injectors, antimatter storage pods 
36 waste management 

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January 19, 2018



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