Legacy class

The Legacy-class starship USS Atlantis NCC 1701-O was a type of multi-mission explorer, Warship and Super carrier that entered service with the Federation Starfleet during very late years of the 30th century. The prototype USS Legacy was launched in 2384 under the command of Captain Joseph Johns. (Star Trek: The Helena Chronicles: "Obsessions"). The next most highly advanced replacement ship of this class was the Federation Starfleet Starship USS Atlantis NCC 1701-O. The Starship USS Atlantis was the last ship of the Legacy class. Other vessels of the class included the USS Cadence, USS Protector, and USS Serenity. (Star Trek: Alpha Command, Star Trek Protector)

In Last Unicorn Games' continuity, the Legacy name was assigned to a as a proposed design of heavy cruisers following the Dominion War. (Spacedock: The Advanced Starship and Construction Manual)

The last Legacy class Starship was the USS Atlantis NCC 1701-O and was the most famous of the ships in this class. The Enterprise-O was commissioned in the year 2989 during the very late 30th century. It would be the last vessel of the Legacy class to be employed by Starfleet.

Technical Specs

The Atlantis-O was the most powerful starship in service for Starfleet during the late 30th century and was equipped with some of the highest most advanced weapons and defensive systems that has ever been employed on a starship. The USS Atlantis-O was by and large the most powerful Starship in service during the very late years of the 30th century.

The Atlantis was 742 meters long and it's draft and it's beam were 7,000 meters and 8,900 meters respectively. It had a crew complement of 700 which was modified from the original Legacy class starship.

Offensive capabilities

The weapons of the USS Atlantis were incredibly powerful as It had weapons and defenses that would have put the Borg to shame. It's weapons included: Multi-Adaptive Phasers

• 9,000 Advanced Phaser Arrays
• Type 20 Transphasic Torpedos
• Type 20 Photon and Quantum Torpedos
• Type 10 Omega Torpedos

Advanced Phasers

The starship was equipped with powerful Advanced Phasers that were able to adapt to enemy shields and was capable of remodulating themselves so as to prevent enemy shields from adapting to the Phaser frequencies. Additionally, the hull of the Atlantis was installed with multiple Phaser Arrays—in all, there was 9,000 Phaser Arrays scattered across the hull of the ship.

Torpedos

The Starship Atlantis was also equipped with very powerful and highly effective Torpedos. They were installed with adaptive systems that allowed them to adjust to a enemy vessels Shield Modulation Frequencies. The most advanced and most effective of them all was Starfleets type 10 Omega Torpedos that were capable of penetrating enemy vessels shields.

Defensive capabilities

The defensive systems of the Atlantis were also impressive and were highly effective and powerful. They were:

• Advanced Deflector Shields
• Multi-Adaptive Shields
• Regenerative Shields
• Remodulating Shields
• Ablative Hull Armor
• Parametellic Hull Armor Plating
• Temporal Shields
• Omnispectral Shields
• Metaphasic Shields

Multi-Adaptive Shields

The Multi-Adaptive Shields were designed to be able to adapt to enemy weapons fire and adjust itself to prevent any damage from accruing and causing severe internal damage as well.

Ablative Hull Armor

The Ablative Hull Armor was designed as a secondary hull cover that would when taking direct enemy weapons fire—would drop incrementally thereby allowing for more time of shields and other defenses to be repaired if damaged.

Parametallic Hull Armor Plating

In addition to the Ablative Hull Armor, the hull of the USS Atlantis was installed with Parametallic Hull Armor Plating which provided added protection for the Ablative Hull Armor.

Omnispectral Shields

The Atlantis was also equipped with Omnispectral Shields which were a kind of shield or shields all rolled into one massive defensive system.

Regenerative Shields

These shields were able to regenerate themselves or heal after direct enemy weapons fire.

Temporal Shields

The USS Atlantis was also equipped with Temporal Shields to protect it in the event of a temporal anomaly or some form of change in the fabric of Subspace-time.

Hull of the USS Atlantis

The USS Atlantis had a hull that was made of a new material called Tripolyduranium Titanium and was so thin but very powerful as well as being extremely dense and thick. It was 9 billion inches thick and was capable of withstanding enormous amounts of stress in battle as well as in flight.

The ships Primary and Secondary Hull were made of a new composite material called Tripolyduranium Titanium alloy which was incredibly thin yet very strong and was 9 billion inches thick. The hull was also installed with Ablative Hull Armor and Parametallic Hull Armor Plating. Making it extremely resistant to damage from enemy weapons fire.

The ship was over more than 20 decks thick and was equipped with warp nacelles that were like those of the Intrepid class Starships. It was built for exploration and combat if necessary and could hold its own without help.

This made the ship very powerful and highly effective in combat as well as deep space exploration. It was also equipped with Multi-Vector Assault Mode.

Deck 3: Main Bridge

On the USS Atlantis, the Main Bridge is found on Deck 3. This is for Tactical reasons as most ships are at risk of their Bridges being targeted by enemy weapons fire. So the Bridge of the Atlantis is on deck 3. However, it is possible to have a secondary command Bridge for emergencies but most ships of the late 30th century was using the bridge on the third deck instead of deck one.

The Main Bridge of the Starship USS Atlantis-O was truly magnificent in its design and construction as well. The bridge was so massive and equipped with multiple stations such as Tactical/Security, Ops/Con, and many others as well.

Decks 10–15: Main Engineering

Decks 10–15 of the USS Atlantis was the location for Main Engineering. This was the heart of the ship and was where the Omega Warp Core was located. The shear size and power that the Omega Warp Core provided was truly unprecedented and it was incredibly powerful. The size of Main Engineering was also massive in design and construction as well.

Omega Warp Core

The core or power plant for the massive Legacy class USS Atlantis was the Omega Warp Core which was massive in size as well as power output. It was in fact powerful enough that it could propel the ship to any point within the galaxy and back in under just a matter of 3 to 4 days when at full power.

The Atlantis starship was truly a marvel in construction as well as in design.

Deck 17: Main Sickbay

The Main Sickbay onboard the USS Atlantis was located on deck 17. The sickbay was again like the Main Engineering and Main Bridge—was very advanced in its appearance as well as design and construction. It was equipped with all the current most up to date computers and tools for providing care to patients who were injured or in recovery.

The pinnacle of the sickbay was the newly installed Advanced Emergency Medical Holographic Program. The AMH for short, was the newest and most advanced Medical Hologram designed by Starfleet Medical.

Background

• The Legacy class was designed by Andrew Gillespie and Malcom Lu in 2009. Specifications come from graphics on Lu's DeviantArt page.
• The digital model used in The Helena Chronicles for the USS Legacy actually showed the registry for the USS Cadence.
• Several online RPG groups have co-opted the Legacy design for their sims, many making alterations to its specs. Star Trek: Alpha Command used it essentially unaltered, while Obsidian Fleet uses it to represent their version of the Majestic-class starship, and Omega Fleet portrays the Legacy class as a 2000 meter-long behemoth space control ship.