Fleet-Sandboxes

Carriers

 * Alvernia-class supercarrier
 * Length: 4,402 metres
 * Thermopylae-class heavy carrier
 * Length: 2,820 metres
 * Vaughn-class light carrier
 * Length: 818 metres

Cruiser

 * Enyalius-class battleship
 * Length: 2,157 metres
 * Calgary-class heavy cruiser
 * Length: 1,947 metres
 * Jaipur-class light cruiser
 * Length: 1,771 metres

Frigates

 * Achilles-class heavy frigate: escort
 * Length: 734 metres
 * Heracles-class light frigate: planetary defence, escort
 * Length: 616 metres
 * Orion-class light frigate: aa, atmospheric fire support. carries ground forces
 * Length: 470 metres

Destroyers

 * Talwar-class heavy destroyer
 * Length: 906 metres
 * Gladius-class destroyer
 * Length: 742 metres
 * Trident-class light destroyer: torpedo hitter
 * Length: 668 metres

Corvette

 * Talos-class warshp
 * AA-class corvette

Aekul Navy Ship Classes
Mythological creatures.

Carriers

 * -class fleet carrier
 * Length: 3,712 metres
 * -class carrier
 * Length: 2,334 metres

Frigates

 * Phoenix-class frigate
 * Length: 1,764 metres
 * Caladrius-class patrol frigate
 * Length: 1,194 metres

Destroyers

 * -class destroyer
 * Length: 2,016 metres
 * Satyr-class scout destroyer
 * Length: 1207 metres

Corvettes

 * Pegasus-class covette
 * Length: 266 metres
 * -class stealth corvette
 * Length: 213 metres

Stror Navy Ship Classes
Named after birds of prey.

Frigates

 * Falcon-class patrol frigate
 * Length: 3,553 metres

Destroyers

 * Raptor-class patrol destroyer
 * Length: 2,731 metres

Corvettes

 * Osprey-class defence ship
 * Length: 1,459 metres
 * Owl-class stealth corvette
 * Length: 1,856 metres
 * Harrier-class enforcer
 * Length: 875 metres

Makol Navy Ship Classes
Evil creatures

Carriers

 * Dybbuk-class carrier
 * Length: 4,030 metres
 * Koschei-class carrier
 * Length: 2,784 metres
 * Wendigo-class carrier
 * Length: 1,578 metres
 * Bunyip-class light carrier
 * Length: 1,048 metres

Frigates

 * Warg-class frigate
 * Length: 1,776 metres
 * Tikbalang-class blockade runner
 * Length: 1,631 metres

Destroyers

 * Adlet A-class destroyer
 * Length: 2055 metres
 * Adlet B-class defence destroyer
 * Length: 2029 metres
 * Adlet C-class stealth destroyer
 * Length: 2057 metres
 * Kikiyaon-class aerospace destroyer
 * Length: 2387 metres

Corvettes

 * Yowie-class corvette
 * Length: 1,194 metres
 * Duende-class fast corvette
 * Length: 557 metres
 * Aswang-class gunboat
 * Length: 504 metres

Gelgan Navy Ship Classes
Mytholocial villains.

Carriers

 * Apep-class assault carrier
 * Length: 4,043 metres

Cruisers

 * Zahhak-class battlecruiser
 * Length: 3,341 metres
 * Asmodeus-class cruiser
 * Length: 2,466 metres

Frigates

 * Mordred-class patrol frigate
 * Length: 1,711 metres
 * Kronos-class frigate
 * Length: 1,644 metres
 * Polyphemus-class blockade runner
 * Length: 1,353 metres
 * Mara-class frigate
 * Length: 1,590 metres

Destroyers

 * Grendel-class aerospace destroyer
 * Length: 1,910 metres
 * Ahriman-class destroyer
 * Length: 2,652 metres

Corvettes

 * Balor-class stealth corvette
 * Length: 1,446 metres
 * Ouranos-class missile corvette
 * Length: 783 metres
 * Ravana B-class atmospheric corvette
 * Length: 875 metres
 * Ravana A-class corvette
 * Length: 889 metres

Carriers

 * assault ship
 * Length: 2466 metres
 * assault ship
 * Length: 3408 metres
 * -class transport ship
 * Length: 2758 metres

Cruisers

 * command cruiser
 * Length: 2559 metres
 * -class cruiser
 * Length: 2294 metres

Frigates

 * frigate
 * Length: 1525 metres
 * frigate
 * Length: 1684 metres

Destroyers

 * destroyer
 * Length: 2042 metres
 * heavy destroyer
 * Length: 2519 metres

Corvettes

 * patrol corvette
 * Length: 730 metres

else

 * Completely self-sufficient
 * Wage individual war campaigns
 * Respond to threats
 * Mediate peace talks
 * Comfortable living quarters
 * Advanced training facilities/simulation facility/production facilities