Praetorian-class Battleship

From Beyond the Frontier
Class Overview
Name: Praetorian-class Battleship
Designation: BB
Manufacturer: The Initiative
Preceded By: Templar-class Battleship
Developed From: Templar-class Battleship
Active: 8
Destroyed: 1
Technical Specifications
Function: Battleship
Size: Length: 548 Meters
Beam: 72 Meters
Draft: 30 Meters
Sublight Speed: 30,000 KM/S (Military Thrust)
FTL Speed: 10 ly/h
Standard Complement: 300 Officers & Crew
100 Marines
Countermeasures: Anti-Fighter/Missile Close in Weapons System
Armaments: See Below
Hull: Titanium Alloy
Shield Generators: Dual Shield Generator
Auxiliary Craft: See Below

Praetorian-class Battleships are the largest heavy combatant currently fielded. Intended for smashing through enemy forces, the Praetorian-class battleship is relatively slow, moving at a maximum of .1 light (close to 30 thousand kilometers a second), having one of the slowest accelerations in the fleet because of the extra mass of it's armor.


The first Praetorian-class battleships were launched in 2341 CE. For the past three centuries, there had been no new battleships after the Fall of Earth. The first Praetorian-class battleships were intended to be used against retired warships captured or rearmed by various pirate gangs, or newly constructed pirate vessels. The first generation Praetorian-class battleships utilized new technology such as artificial gravity that had not been available for prior generations.

Due, in part, to the resounding success of the first generation of the Praetorian-class, the second generation wouldn't see planning and construction until the mid 2400s when production was accelerated to combat an increasing number of pirate factions. Following the prototype of the second generation being built in orbit over Sanctuary, later models were ordered for construction at other shipyards.


Praetorian-class Battleships are named after the Praetorian Guard of old Rome, on Earth. The Praetorian Guard was the personal guard of the Emperor, and effectively could control the Empire through him, as well as who became Emperor. They also, at times, killed the emperor (either for hire, or due to disagreements with him).

Basic Specifications


  • Length: 548 Meters
  • Beam: 72 Meters
  • Draft: 30 Meters
  • Decks: 8

Crew Complement

  • Minimum: Five (Limited Functionality)
  • Standard: 300
    • Plus another 100 Marines
  • Maximum: 1,200


  • Sublight: Electrodeless Plasma Thruster

Power Plant

  • Primary: Antimatter Reactor
  • Secondary: Solar Panel Arrays

Hull Composition

  • Hull: Titanium Alloy beneath a one-meter thick Synthetic Diamond Sheath
  • Armor Plating: Three meters of Case-hardened Steel, Titanium, & Ceramic Composite Plates

Sensor Systems

  • Target: Unknown

Defensive Systems

  • Nanitic & Composite Armor
    • Capable of limited self repair via nanites
  • Dual Shield Generators
    • One Primary, One Backup
  • Directed EMP Generator
    • (Designed to disable missiles & incoming craft)
  • Close in Weapons System


  • Mark I
    • (??) 25mm (1") Anti-Fighter/Missile Close in Weapons Batteries
    • (20) 406mm (16") Coilgun Batteries
    • (52) 304mm (12") Coilgun Batteries
    • (20) Torpedo Tubes
    • (8) Plasma Cannons
    • Cybernetic Warfare Suite
  • Mark II
    • (??) 25mm (1") Anti-fight/Missile Close in Weapons Batteries
    • (16) Particle Beam Weapons
    • (20) 406mm (16") Coilgun Batteries
    • (52) 304mm (12") Coilgun Batteries
    • (20) Torpedo Tubes
    • (8) Plasma Cannons
    • Cybernetic Warfare Suite

Auxiliary Craft

Other Systems


Defensive Systems

Due to the interference of having multiple shield generators active at the same time, the shield array is not intended to be active at the same time, but one activates, closer to the hull, when the primary shield generator goes offline, and, once the other one is ready to re-activate, the secondary one shuts down, and the primary reactivates, thereby attempting to save the heavy armor only for emergencies. The armor itself is riddled with strips of reactive plate, that, in emergencies, will blow out metal shrapnel in an attempt to damage incoming missiles sufficiently to destroy them, or at the very least, disable them. Located at strategic points throughout the armor plating are vents to pockets within the plating for nanites to be deployed to shore up weakened locations, and to provide limited repairs.

Many of the vessels are designed with removable armor plating, consisting of easy to manufacture, yet durable materials, designed to be easily replaceable by a mobile fleet. This is intended to prevent the fleets from needing to draw on large amounts of rare elements while on the move in repairing hull and armor damage.

Between the armor plating and hull, or sometimes beneath the hull, is a layer of water bladders, used to contain the ship's fresh water, and waste water awaiting treatment. It is placed here in order to absorb radiation that might penetrate the hull, or leak out from within and give away the ship's location (such as radiation from electronic devices within the vessel). It serves a further purpose and can assist in absorbing the fire of an energy weapon for a brief duration.

Power Systems

Like many of the Initiative's projects, a great deal of thought was given to prolonging a ships combat life. To this end, all the key primary, secondary, and some tertiary systems are outfitted with interconnected secondary power supplies in the event of a failure of the primary reactor. They are interconnected, to allow for emergency power supplies to be shifted to bolster various systems with an above-rated power supply for emergencies. In addition, these systems, when not being used in such a manner or being used to power their accompanying systems, charge a number capacitors that can be discharged to provide an additional boost on top of the emergency systems.

Weapon Systems

The majority of coilguns utilized by the Initiative's vessels draw from numerous magazines simultaneously, with the bulk of these being standard penetrating or delayed fuse rounds designed for pure damage. However, on many vessels, the coilguns are built surrounded by multiple magazines, with a variety of shells, ranging from nuclear-tipped rounds, to biological and chemical warfare rounds designed to cause more damage to the crew than to the vessel itself, usually as part of an effort to maintain the integrity of the vessel.

Life Support Systems

Many of the compartments aboard Initiative carry backups to key systems such as life support. Life support is a system of self-contained bio-engineered fungi that inhale carbon-dioxide and carbon-monoxide, and produce oxygen, which is then fed through mechanical filters and scrubbers to remove any remaining impurities, before being introduced into the compartment. In the event of a power failure, the fungi will continue to filter the air for a minimum of several months before beginning to fail, with extreme test cases lasting several years. Failure of the scrubbers and mechanical filters that might render the air unable to reach the compartment causes mechanical failsafes to bypass these systems. This redundancy in the life support is to ensure that any and all compartments could survive the loss of main power, and allow members of the crew to survive the loss of the vessel, or loss of a safe passage from their compartment, until rescue can arrive.



Every vessel fielded by the Initiative carries multiple forms of communications. These range from subspace communications relays (such as the Echo Drive), to radio, to laser communications. On top of these, the ships running lights and transponders are designed to be manipulated to send Morse code messages in an emergency, should something occur to the primary methods of communication.

Emergency Systems

Many compartments, in addition to the standard emergency lighting, contain bio-luminescent fungi contained within tubes implanted in the walls, tied into the power system designed to activate the fungi when the power goes out, providing low-level lighting. Scattered throughout the ship, in every key compartment, to augment the low-level lighting, directions and guides painted in a luminescent paint visible only under certain spectrum not covered by normal or emergency lighting (relying on handheld lighting, such as issued by the Initiative) to become visible, to locate specific compartments or emergency equipment caches. This is done to deny hostile boarding parties easy navigation through a vessel.

While key survival systems are given multiple backups, all of the warships are given the means to conduct basic repairs to almost every system.

Cargo and Supplies

Many of the warships fielded by the Initiative have additional space set aside for cargo, in addition to their regular supply compartments. These additional cargo bays are designed in such a way as to be easily convertible for any purpose the ship may need them for. The potential purposes that these cargo holds were designed for spread from secondary bays for auxiliary craft (such as fighters or shuttles), troop bays allowing any ship to support an invasion force (in addition to the regular marine detachments), crew compartments (if, for any reason, the ship has to take aboard additional crew or evacuees), to cargo bays allowing the ship to transport military cargo (or extend it's range, with additional supplies).

Hull Designation

All ships within the Initiative are given an alpha-numeric hull number. Each alpha-numeric code is unique to the vessel, and begins with the ship's base class for the first or two letter (DN for Dreadnought, CV for Carrier, BB for Battleship, CB for Battle Cruiser, C for Cruiser, D for Destroyer, F for Frigate, K for Corvettes, etc), and any specialty designations as the second letter (CM for Cruiser, Missile for instance), followed by the generation of the vessel (0 or X for prototypes, and then each successive updated model of the class is given a new generation number), followed by the ship's place in that particular generation and class.


All vessels constructed by the Initiative are designed around modular systems and components, designed around maximum efficiency as well as easy installation and removal, in order to facilitate rapid upgrades. Rather than requiring significant time in drydock for upgrades or repair, like many older designs, Initiative vessels are designed to be able to enter drydock, have the required components and systems pulled out as a whole, and rapidly replaced. This has the added benefit of allowing components to be built at distant locations and transported to a pre-arranged point, where an auxiliary repair vessel or base could perform the work.

Further components within the modular systems can be replaced independent of the module, allowing for replacement of damaged or non-functional components without necessitating removal of the entire module.

Deck Listing

  • Deck 01: Coilgun Battery & Magazine, Bridge, Plasma Cannon Battery, Coilgun Battery & Magazine
  • Deck 02: Officer's Mess, Officer's Quarters, Combat Intelligence Center, Particle Beam Weapon Battery (Mk II Only)
  • Deck 03: Crew Mess, Coilgun Battery & Magazine Crew Quarters, Medical Bay, Stasis Pod Bays, Coilgun Battery & Magazine
  • Deck 04: Torpedo Tubes & Magazine, Hangar (Upper Half), Antimatter Reactor (Upper Half), Coilgun Battery & Magazine, Engine Compartment (Upper Half)
  • Deck 05: Torpedo Tubes & Magazine, Hangar (Lower Half), Antimatter Reactor (Lower Half), Electronic Warfare Center, Engine Compartment (Lower Half)
  • Deck 06: Marine Mess, Coilgun Battery & Magazine, Marine Quarters, Marine Training Section, Coilgun Battery & Magazine
  • Deck 07: Water Reclamation, Storage, Vehicle Storage, Particle Beam Weapon Battery (Mk II Only)
  • Deck 08: Coilgun Battery & Magazine, Cargo Bay (Foreward), Plasma Cannon Battery, Cargo Bay (Aft), Coilgun Battery & Magazine

Known Vessels

Operated by the Space Forces Command