Shogun-Class Superdreadnought

[Pharthan]

Go To Halcyon Arms Storefront or Myrmidon Tactical Design Storefront For Purchase!

NOTICE TO PROSPECTIVE BUYERS: This item is not recommended for nations under 500 Million population (within roleplay - if you do not follow NS Stats for roleplay, neither will I upon considering your nation), and it certainly not recommended if you do not otherwise have a well structured Navy. The Shogun-class is not for a new Navy by any means - it is for a well established Navy desiring Sea Dominance. I do not normally make statements of recommendations about how my customers should go about their business, but on this subject, I will.

If you are not well versed in the aspects of Naval warfare, I recommend the following instead:

• Gallant-class Fleet Carrier
• Ranger-class Guided Missile Destroyer
  And, if you absolutely must have a large combatant vessel:
• Longbow-class Missilenought

The above will suit you far better for far cheaper and make your Navy far more versatile and capable.

A COLLABORATIVE EFFORT BETWEEN Pharthan's Halcyon Arms and Marquesan's Myrmidon Tactical Design


Higher Resolution Image
SHOGUN-CLASS
SUPERDREADNOUGHT

RESTRICTION LEVEL FOUR*
UNIT COST: $176.1 Billion NSD, LIMIT TEN UNITS PER ORDER (INCLUDES Shogun AND Regent COMBINED)
DOMESTIC PRODUCTION RIGHTS NOT AVAILABLE

NAVIGATION
Propulsion System
Armament
Electronics Suite

Stats:
Class: SBDGN, (Guided Missile Battleship/Nuclear)
Hull Style: Monohull
Length: 2497 feet (761 meters)
Width: 405 feet (123 meters)
Height: 509 feet (155 meters) (from waterline) 606 feet (184 meters) (with draft)
Draft: 97 feet* (29.5 meters)
Tonnage: 1,174,000†
Speed: 36 knots (41 mph, 66 km/h)
Aircraft: 12-18†
Boats:
6 RHIBS
2 Fast Attack Craft
Ship's Force: 6,390†
Air Wing: 322†
Deployed Marines: 252†

Armament:
2010 Standard VLS Tubes
120 Oversized VLS Tubes/BM Tubes
6 Triple Torpedo Tubes
9x SGH-460LR Major Caliber Guns, 58.62 Caliber (18")
2 15 MW FEL
24 Quad-Anti-Ship-Missile Tubes

Defenses:
8 1.2MW FEL
12 30mm Shield CIWS
7 57mm Dual Advanced Gun System/CIWS
10 25mm Mk3 Rapier Defense Autocannons
10 .50-cal Dagger ROADS
20 NRAM-32 Longsword (24 Missiles each)
240 Active Anti-Torpedo Decoy-Explosives
9 Active SONAR Decoys, towed
24 .50-cal Machine gun posts

Electronic Systems:
Testudo Prime Central Processing & Fire Control Suite
SANMEN Hierarchal Communications Suite
Theia Prime Electro-Optical Sensor Suite
Caelus Prime Over-The-Horizon Radar Suite
HMS-717 Synthetic-Aperture Sonar Suite

Armor: Steel/Kevlar/Carbon Fiber
Belt:21"
Bulkheads:15"
Deck: 12
Turrets:15"

Power & Propulsion
Power Source: 3 SD1H3 3,700Mw PWR
Back up Source: 10 Mw Diesel Generators
Battery Back up: 24 Hour life, 8 for propulsion
Propulsion: 6 Asimov Engineering SD-1 Waterjets.
(3.341 Million Horsepower),
2 Asimov Engineering SD-4A Azipods (110MW)
Secondary Propulsion: 2 Internal Asimov Engineering
CV-2 Motor-Propulsors (110 MW)
Tertiary Propulsion: 12 Extending Maneuvering Azipods
Maneuvering: 7 Athwartships Propulsors

GENERAL DESCRIPTION:

The Shogun-class of superdreadnought is a vessel designed and built jointly by Halcyon Arms and Myrmidon Tactical Design (who designate it as the Type-100 Sea Dweller), designed as an Over-The-Horizon Radar platform combined with strike-functions utilizing this function. The Shogun was named for the Japanese Warlord-General title of the Kamakura-to-Tokugawa eras. and named for it's ability to dominate large swaths of the sea at a time.

It is powered by a trio of large 3.7 Gigawatt Pressurized Water Reactors powering a common electrical distribution system. All propulsion power is derived off of this system in an all-electric propulsion plant. As a result, the ships are capable of 20 years of operation before needing to refuel, however, range is restricted by necessity of maintenance on the propulsion plants, which is recommended every three years at the longest.

The Over-The-Horizon Radar has a range of 300 miles to 1,500 miles, allowing for extreme range detection of enemy vessels, aircraft, and ballistic missiles. Combined with this system, the Anti-Ballistic Missile lasers are capable of taking out targets in orbit several hundred miles away, with a surface-to-surface range of approximately 20 miles. This design was deemed necessary to kill the Shogun's primary enemy; extreme-range ballistic missiles.
These anti-ballistic missile lasers are the outermost layer of the five-tiered defensive system. The fourth layer is comprised anti-air missiles and strike-missiles launched from VLS tubes, able to strike over the horizon and defend against long-range targets. A third layer is made up of the point-defense lasers, able to kill only in a line-of-sight manner, limiting them to roughly 12 miles from the horizon for surface-to-surface; those higher mounted can achieve surface-to-surface kills at 18 miles. Against air targets the range is largely based on weather conditions, though it can extend out to effectively kill at 50 miles. The second tier is manned by rolling-airframe missiles with a range of nearly 12 miles; they can be programmed for several kill modes to take out a variety of targets. Finally, the inner tier is comprised of 30mm, 57mm CIWS, 25mm autocannons and 12.7mm machine guns. The 25mm autocannons and 12.7mm cannons are not designed for point-defense, though they can be utilized as such. The 57mm CIWS is sufficient for kills at 3 miles, with the 30mm for just over two miles of range.

The ship is protected heavily against EMP, especially high-altitude bursts. When Condition Zebra is set, the hull of the ship functions well as a multi-tiered faraday cage. Those systems not able to be protected against EMP have stored replacement circuitry components and are designed to be easily replaced.

The surface-to-surface radar range extends just over 26 miles and can be used to detect ships at a slightly further range, pending their height. As the Shogun is effectively blind beyond this range until it's OTH radar range, the superdreadnought is usually deployed with a carrier strike group for additional protection, radar picketing, and AWACS coverage, which allows the ship to utilize the full extent of it's missile systems.

As a primary gun armament, the Shogun-class boasts three triple 18" inch guns, capable of heavy bombardment of shore targets. Against enemy ships, the Shogun carries a variety of VLS launched missiles, to include large up to 120 BGM-11 Spear Anti-ship/Cruise missiles with a range of 120 nautical miles or large surface-launched ballistic missiles and 96 BGM-18 Lance Anti-ship missiles with a 400 nautical-mile range, designed as carrier-killer missiles. Against generic targets the Shogun has 2010 VLS tubes, able to launch smaller cruise missiles, strike missiles, and anti-air missiles.


Amenities:
Crew amenities, for the most part, are as standard with any Pharthan Navy ship. Each individual sailor is allotted their own "Coffin-Rack," which storage underneath the rack, which sits in a tray that can be lifted to expose personal storage space, as well as a personal locker. Each rack space comes with a personal reading light, towel-hangar, emergency egress breathing device stowage, personal six-outlet power strip, and a state-of-the-art Smart Reveille Suite, or SRS.
The SRS monitors the sleep pattern of the sailor, and can be programmed in with the applicable Watchstation Schedule, Morning Routine & Muster, et cetera. For those requiring certain amounts of sleep such as pilots, it can also advise the sailor on when they should be falling sleep. The SRS is a built in computer roughly the size of a smart-phone, built into the rack itself and is tamper resistant. It also includes vibration sensors which are, as a standard, built into the walls and base of the rack, as well as separate remote sensors to be able to differentiate natural ship motion from the motions of the sailor.
To promote healthy sleep, the SRS will begin playing soft music of the sailor's choice to ease them awake within the optimal period prior to their next appointment, as well as emitting "peaceful" light.
In the event the sailor is late for watch or muster, a louder alarm and brighter lights will be emitted.
The speakers for the sounds are directed inward, and additional sound-proofing is provided to prevent disturbing other sailors.

While differing on each ship and in each compartment slightly, each berthing location houses between eight and 12 enlisted sailors. Officer berthings may be singular, double, or a quartet, depending on rank and station. Each berthing space comes with one computer, which, when available, is linked to the ship's internet and unclassified network; internet browsing on this network is often limited for security reasons, though general social media is allowed. A separate web-browser notebook is also provided to allow sailors to download movies, games, videos, et cetera, and more extensive chat with family. While still monitored for security reasons, this is not connected to the ship's unclassified data network and is more free to use.
Each berthing space has an ample amount of electrical outlets and storage space, both communal and personal, to allow for personal gaming systems, and each berthing space has one large flatscreen TV, with space for an extra. Additionally, every berthing space has their own minifridge and microwave oven.
For every forty sailors there is an additional community space, allowing for more activities to include the watching of movies, TV, gaming, et cetera, without disturbing those sleeping at the time.

For every sixteen sailors there is at least one head, to include two showers, two toilet stalls, and three sinks, though some areas may include more based on availability. These are often of stainless steel construction for sanitary reasons, and the shower-stalls are curtained off, though some may include a hard vanity door.

Gym services include rowing machines, various styles of treadmills, weight machines and racks, yoga mats and equipment, sports equipment for any open areas, and more at the request of the ship's recreational officers.

---

Go To Halcyon Arms Storefront or Myrmidon Tactical Design Storefront For Purchase!

[Pharthan]

SD1H3 Pressurized Water Reactor Plant
3,700 MW
Author: Pharthan

SD1H3 Stands for:

• SD: Superdreadnought Platform
• 1: Contractors first design generation
• H: Halcyon Arms. Contracted Designer
• 3: Third iteration of the present Reactor Design.

The SD1H3 is a Pressurized Water Reactor utilizing nuclear fission for the purpose of heat production to be used to create steam for usable work. The SD1H3 is jointly designed by Halcyon Arms, Asimov Engineering, and Mymidon Tactical Design, and built by Halcyon Arms. Core life is expected to be twenty years, depending on operations, maintenance, and modifications made. Utilized for only electrical power, the core may last for up to 60 years. Presently the SD1H3 is only used on the Shogun-class. The reactor core is rated to 3,700 MW production capacity and utilizes highly enriched uranium as fuel. The Uranium is made into uranium oxide pellets which are then clad in zircaloy to make fuel-plates, which are stacked with gaps between them (for coolant to pass through), and made into assemblies, which are then assembled around a center channel design for the control rod to pass through, making a fuel assembly. This fuel assembly is immobile within the core.

The SD1H3 is a two-loop reactor plant design, using highly pressurized and purified water as both coolant and moderator. The heated coolant passes through a boiler unit, heating it's water to produce steam. This water is then pumped back to the core by a reactor coolant pump, one per loop, where it passes around the reactor vessel, mixing with water from the other loop and then through a colander to ensure proper mixing of the coolant and filtration of debris, should any exist. From the colander the water passes up through the first-pass fuel channels for the initial heating, then out, around, and down the fuel assemblies to again pass upwards through the second-pass fuel channels, heating up the coolant further before ejecting it into the outlet region, where the coolant is sent back through towards the boiler units. The boilers provide steam for five turbine generators, two of which are used to power the reactor coolant pumps, and the other three powering the Common Electrical Distribution System.

Due to using water as a coolant/moderator, the reactor achieves natural stability. If the reactor experiences an up-power transient the coolant heats up further it will be less dense and moderate fewer neutrons, so more neutrons will escape the core, again lowering reactor power back to it's original state. The only process, therefore, which will change reactor power and maintain it steady-state at that new power is a change in steam-demand, save for massive introductions of poisons which drive the reactor out of it's power range, such a protective "Scram". Conversely, other factors can change temperature, namely the introduction of poisons, to include control rods. Control rods are used for reactor control as well as protection; in the event of a loss of power they will automatically scram (insert to the bottom of the core, shutting it down completely). This can also be done by the operator or by automatic action in the event of other casualties as well. Additional safety features include automatic filling of the reactor, should the core become depressurized and risk becoming uncovered, which would mean a lack of coolant and would allow for potential meltdown. With this, significant release of fission-product contamination external to the hull of the ship is guarded against.

The SD1H3 is capable of operating up to 10% power without powering it's reactor coolant pumps; this natural circulation can be used for both decay heat removal and low power operations, making the reactor plant relatively quiet, but this natural circulation also provides for power transient-response and is not suitable for combat operations. As they are easy to cool without operator action or electrical power, the SD1H3 is remarkably safe when shutdown. This also means that the reactor plant can perform a battery-only start-up, which is highly valuable for combat scenarios or a loss of all reactor plants simultaneously.

Radiation shielding is required and makes up the outside of the reactor compartment, which houses the reactor, boiler units, coolant loops, reactor coolant pumps, pressurizer, and filtration system. The shielding is made up of borated poly, water tanks, steel, and lead. It also has photovoltaic cells lining the inner wall to provide a trickle-flow of electricity to power the ship's battery and auxiliary reactor-plant batteries. With the reactor at power this trickle flow can be used to maintain supply of electricity to critical components. Entering this reactor compartment while the reactor is at power is considered to be deadly, but the layered shielding is so sufficient that personnel working in the propulsion plant will receive less radiation than those working on the weatherdecks of the vessel.

In the event of a loss of power, several emergency diesel generators can provide auxiliary power. This are primarily designed to support the reactor plant's automatic fill protection system, but they can also be aligned to the common electrical distribution system for propulsion power.

The electrical distribution system operates off of a nine-sector system, each quadrant powered by a single turbine generator. Each sector is supported by a capacitor system to allow for powering of large loads. The forward and aft sectors power the large anti-ballistic missile lasers, with the center sector powering the Over-The-Horizon radar. All sectors power lighting, ventilation, critical components, communication, as well as smaller auxiliary loads. Flanking sectors are responsible for generic power and propulsion power, though the centerline electric plants and even the opposing electric plants can be made to power an of the main engines. Each of the reactors is capable of providing up to 60% of propulsion power.

[Pharthan]

Morrigan Superheavy Naval Gun, Long Range
SHG-460LR
Author: Marquesan

Name: Morrigan Superheavy Naval Gun, Long Range, SHG-460LR.
Caliber: 52x223cm, 567 Kilogram Telescoped Caseless.
Ammunition Type: HVC, 46x205cm, 227kg Armor Piercing High Explosive.
Propellant Type: 52x132cm SSC, 340kg Hexanitroethane/Octanitrocubane.
Cyclic Rate Of Fire: 7.8 Rounds Per Minute.
Muzzle Velocity: 2,565 Meters Per Second. (Mach 7.55.)
Range & Accuracy: 68,600 Meters @ 2,000mm CEP.
Overall Length: 26.970 Meters, 58.62 Calibers.
Turret Weight: 130.93 Metric Ton Three Gun Mount + Armor, 2,231 Metric Tons Total.
Max Elevation/Depression: 30°Positive, 10° Negative.
Max Traverse: 10° Per Second.
Operation: Open Bolt, Articulated Off-Axis Recoil Vectoring.
Action: Delayed Blowback, Advanced Primer Ignition.
Recoil: Reciprocating Barrel, Hydraulic Recoil Absorption.
Ignition: Piezoelectric, Electrothermal Chemical Plasma.
Barrel: Beryllium Liner, Liquid-Cooled Sleeve, VG Progressive Twist Rifling.
Feed System: Fully Electric Feed, Three-Chamber Revolving Cylinder.

The SHG-460LR is unique among major caliber guns. The gun is essentially divided up into seven major components: The reciprocating barrel assembly, the bolt assembly, the upper receiver, the revolving carrier cylinder, the lower receiver, the autoloader and the magazine. This system is multiplied into three gun turrets where each gun is capable of independent elevation and the entire armored assembly sits in a thickly armored barbette and is covered by an armored gunhouse. These gun turrets together make up some of the very largest and most powerful working firearms ever assembled by man. As a technical definition, the SHG-460LR gun is a semiautomatic, gas-operated revolving autocannon, engineered to deal with incredible heat and stresses well beyond the design limits of the ammunition being fired.

The SHG cannon, while expensive to produce, exhibits astounding mechanical properties. Every component uses large, robust parts and loose clearances maintained throughout, making assemblies easy to operate, maintain and clean. All action-related assemblies and receiver components are all machined from forged monoliths of high-temperature Inconel steel. The ultra-high pressure ammunition fired would tear most weapons apart and yet class withstands these forces while being much lighter than an equivalent gun of conventional construction. The diamond-like carbon coatings on important components of the gun reduce wear over an order of magnitude compared to conventional finishes and also allows the cannon to run for its first 1,200 rounds without any lubricant at all. After this, the finish of the parts should be inspected for wear and either restored to factory conditions for another 1,000 rounds of unlubricated life, or every 100-200 rounds should be coated with a micrometric layer of solid graphite lubricant.

The Magazine Deck.

SHG-460LR Three-Gun Turrets are supplied with 400 Rds. of 520mm Caseless Ammunition. This ammunition, described later, is a telescoped round surrounded by its propellant charge and coated in a combustible nitrocellulose jacket for ease of storage and transport. The propellant blocks are 52cm in width and 1,320mm in height, with the telescoped ammunition embedded in the center of the block. The cylindrical block has an 18cm base behind the round itself, a long-ogive, high velocity round designed for extreme penetration against hardened steel, concrete or earth. The round, which is 205cm in length protrudes from the propellant block by 91cm, making each round 223cm in overall length from the base of the propellant block to the tip of the round.

These rounds are housed in 130-round rotating carousels in the magazine deck; there are three carousels per turret magazine. The carousels are loaded by an automated elevator car that brings rounds down to the magazine deck from a loading port on the upper deck of the ship at a rate of three rounds per car. This elevator car travels in an armored tube which runs the entire height of the turret. When not in use for loading, the elevator tube is used to vent gun gases from the turret and serves as an overpressure relief zone in the event of a catastrophic firepower kill on the vessel. Each 130-round carousel is sealed off in an explosion-proof armored magazine compartment and feeds its rounds up through the center of the carousel, one at a time with a hydraulic autoloader. The magazine section is fully automatic and requires no constant human presence inside any of the three magazine compartments, through they are accessible for inspection and routine maintenance. Each carousel is a massive affair, with stored ammunition grouped into ten columns arranged radially around the central spider and its powered bearings. The storage columns use a hydraulically-powered conveyor belt to move ammunition inward to the lift. Once on the lift, ammunition is carried to the receiver deck.

The Lower Receiver Deck.

Each three-gun turret has a lower receiver deck, where ammunition coming up from the magazine deck is loaded into the gun assembly. The lower receiver deck also contains the recoiling bolt assemblies for each of the turret's three guns. The gun assembly's lower receiver is part of the powered and rotating turret assembly, although the three autoloader tubes are not. Since each complete round weighs 567 kilograms, the ammunition must be transferred from the autoloader to the feed ramp, which is done with a hydrauilic lifting claw. This process takes roughly two seconds to transfer all three rounds to the feed ramps. Once a round is on the feed ramp, it is rammed into the gun's ammunition cylinder, which transfers rounds from the lower receiver to the upper receiver. Each SHG=460LR's powered revolving cylinder houses three rounds in a ready to fire state and is milled from a solid forged monolith of Inconel steel. This cylinder, during the firing process, aligns with the gun's chamber so that the bolt passes cleanly through the cylinder in the act of ramming the ready round into the chamber.

The Upper Receiver Deck.

The upper receiver deck of an SHG-460LR turret is incorporated into the armored gunhouse and contains the three upper receivers, their bolt and recoil assemblies and the gun-laying drives for the entire turret. Each gun elevates separately, but the turret moves as a unit structure, with the gunhouse and lower decks moving on five redundant electrically-powered bearing rings. The barrel, gun receiver, gun laying drives, turret rotation motors, action and autoloaders are actuated by solid state, all electric servos that precisely stabilize the weapons and turrets and provide for millimeter-accurate traverse and elevation, the controls for which are all present in the upper and lower receiver decks, which are the only parts of the turret that is consistently manned.

The SHG-460LR absorbs recoil through several different methods. A four part reciprocating barrel assembly includes three outer sections and an inner barrel that runs the entire length. The outer sections telescope during the firing process, running the entire barrel assembly forward at the moment that the bolt releases and then recoiling rearward as its forward inertia is overcome, absorbing a large amount of the gun's tremendous kinetic energy. The barrel recoils into an attenuating spring which itself acts upon a hydraulic recoil absorption buffer, essentially a large fluid shock absorber. The tremendous force acting upon this barrel assembly returns the barrel to its fully recoiled rearward position and is released with hydraulic pressure to run forward at the moment the gun is next fired. At the moment of firing, the bolt with the captured round of ammunition and the barrel are both traveling forward, however the bolt is moving at a slightly higher velocity. Under computer control, this relationship between the two can be precisely controlled so that each round fired undergoes combustion within one half of one microsecond and less than a millimeter from all other rounds fired from that particular gun.

Bolt & Barrel Assembly.

The SHG-460LR's barrel is a tensioned system with a uniform composite structure of the same superaustentic, nanocrystalline maraging steel used in the vehicle's hull with a fully stress-relieved beryllium inner liner. The beryllium liner is flow-formed over a polygonal, variable geometry, progressive-twist mandrel made of a high temperature wax. Once the beryllium liner has settled, the assembly is heated to the point that the wax disintegrates and is "lost" leaving only the barrel liner. Beryllium was chosen for its exceptional hardness, lightness and mechanical properties. The barrel liner is 1/4 the total thickness of the barrel, allowing the entire barrel to be thinner and lighter than would otherwise be necessary. The beryllium liner is superfinished and coated in diamond-like carbon to fully minimize the frictional resistance of the barrel. Around this barrel, the rigid steel sleeve is placed. In this system, the tension on the barrel from its mounting is carried by the barrel sleeve, while the liner does not have a structural load; this allows the liner to resonate freely and improves the accuracy of the weapon.

The SHG's use a laser-collimator dynamic muzzle reference system to enable the firing control to adjust for any warp or bend in the barrel, which it does with the system check after every round is fired. The barrel inside and outside of the turret bustle is cooled with a liquid sleeve using isopropyl glycol to drive integral heat exchangers around an insulating layer of polyetheretherketone (PEEK) and S2 fiberglass surrounding the steel and beryllium composite barrel. The three part outer barrel section acts both as a protective armor for the barrel, but also as a recoil absorbing weight and its shape is formed to attenuate radar energy and lower the radar cross section of the vessel. A maximum of 30° of elevation of the gun and mantlet is possible, and the gun is capable of firing while the vessel is in motion, due to its fully-stabilized operation, isolated from the effects of pitch, roll, yaw and jolt in the vessel's maneuvers by digital servos actuating the gun laying drives.



The chamber of the SHG-460LR is made from a forged composite of carbon nanotubes and beryllium metal matrix, layered and built up in hundreds of iterations of the process and repeatedly forged under extreme heat, stress and hyperacoustic agitation. The extreme lightness and strength of the chamber decreases vibrations and allows for rapid cooling, meaning that consecutive shots maintain a high degree of accuracy. Each piece of the reciprocating assembly and the inside of the chamber and bore of every MHRR is superfinished and all edges are finely chamfered. Once completed, all components of the SHG are cryogenically treated together to improve uniform wear characteristics. After this treatment, all action-related components are finished with a plasma coating in Diamond-Like Carbon (DLC) for a smooth, ultrahard and durable finish, rated to last in excess of 500,000 rounds fired, with the weapon's action said to function in torture tests up to temperatures of 1,000 C.

The smooth, tapered sides of the bolt interface with the smooth-walled cylinder via knitted metal/elastomeric O-ring seals, not unlike the piston ring seals in a combustion engine. The seals are quadruple-redundant in all places and on the bolt, they center the bolt to the chamber precisely improving accuracy. The O-Ring seals also sweep the chamber clean of combustion remnants and seal the breech, eliminating in a stroke many of the accuracy and sealing issues of both open bolt weapons and caseless ammunition. Inside the gun's cylinder, a monolithic bolt acts as both the ammunition ram and the source of ignition. The bolt is essentially three main components; a cammed slider which represents the face of the bolt and its piezoelectric plasma generator, the bolt carrier which is the major source of weight and momentum in the bolt and behind it, a counterbalanced weight which redirects the force of the recoiling bolt downward into the mount, reducing the effect of recoil on the ship and reducing the size of the exposed gunhouse.

SHG-370 Action.

At the moment that firing is required, the bolt is released from its catch in the lower receiver deck. As this occurs, the bolt passes through the revolving ammunition cylinder, picking up a round and ramming it forward into the gun's chamber. The bolt and chamber interface are designed to pick up the round in the cylinder and ram it forward into the chamber quickly without ever locking and dumping forward momentum. As the round travels forward into the chamber, the propellant charge is ignited by an electrothermal chemical process using a piezoelectric plasma generator inside the bolt to superheat the charge. This occurs as the round is still traveling forward and the round undergoes full detonation in the long, smooth cylinder with the bolt still traveling forward. As the detonation pressure forces the projectile forward, the bolt's momentum is canceled and it begins traveling backwards. A cammed slider ensures that the bolt takes enough time to pass the breech that pressure inside the chamber has dropped to a safe level and combustion is complete.

The bolt will travel rearward and pass through two sets of knitted metal elastomeric seals, on either side of the revolving cylinder. Once the bolt clears the rear of the cylinder, the cylinder last fired will be allowed to rest until the weapon is given the command to fire again. When this occurs, the cyilnder will rotate and place a new round in position. The bolt uses an articulated slider and a counterbalancing buffer to "re-vector" recoil forces downwards into the turret ring instead of rearward against the horizontal axis of the vessel, dramatically reducing muzzle climb and perceived recoil, allowing followup shots to occur faster and with greater accuracy. The cylinder last fired will be loaded with a new round as soon as the command to fire is given, while the third position will always be the ready round which is advanced into line with the breech very quickly, dramatically reducing load times. After firing, the bolt locks to the arrest position at the rear after decelerating with the use of the same hydraulic piston assembly which accelerates the bolt forward into the chamber, all of which is computer controlled to ensure precise timing in the action.



This delayed blowback action is called Advanced Primer Ignition. Because of its characteristic smoothness, the SHG-460LR has gained a reputation for a high degree of accuracy in comparison to other major caliber guns and the ammunition has been developed with the gun to create the perfect balance of power, weight, size and accuracy. For Advanced Primer Ignition to function correctly, timing in the firing process must be precise, which is why all MTD-designed weapons utilize Electrothermal Chemical Ignition, or ETCI. Inside the turret, a network of nanoceramic/polymer supercapacitors is conducted to a pulse-forming network manufactured on indium/gallium arsenide boards, making the entire array highly resistant to electromagnetic pulse and interference. These are connected to piezoelectric relays in the upper receiver which, as the bolt passes them during recoil, charge the capacitors with electric current. This current is fed from the pulse-forming network to the ceramic plasma generation cartridge inside the bolt which ignites the round at the precisely optimal point in the firing cycle. This system allows the rate of fire to be precisely dialed in.



The high energies in the electric ignition system make it self-cleaning, vaporizing any debris, and the temperatures can ignite even the worst rounds that can possibly be ignited. All electrical componentry inside the cannon such as the transmission wire from the ETCI capacitors to the plasma former inside the bolt uses a specialized alloy of gold, palladium, silver and indium, which is immune to corrosion, highly conductive, heat-resistant and mechanically strong. The connections are welded rather than soldered or screwed, eliminating them as weak points. Connections are protected by ceramic fiber composite insulation, stable up to over 1200°C. Every cannon's insulation is is tested by being submerged in an electrolyte and detecting even the most minor leaks. The electronic components, where present, use Gallium Arsenide (GaAs) instead of silicon as their base. GaAs is capable of working at far greater temperatures than silicon, up to 700°C, and can tolerate overloads as high as an order of magnitude.

Caseless Ammunition.

The SHG-460LR utilizes a specially-developed, high speed ammunition to cover all possible roles needed in naval gunnery. The result of an exhaustive study of high speed ballistics, the HVC, or High-Velocity Caseless ammunition uses an extraordinarily long ogive resulting in a tall, slender round with a finely-pointed armor piercing tip, and a long shank with a plurality of comparatively small driving bands made from soft copper on the bearing surface. These smaller driving bands require less force to cut into the lands and grooves of the barrel and allow the round to be fired with less pressure than a comparable, conventional round. The boat-tail at the end of the round ensures a minimum coefficient of drag and allows the round to fly through the air with an extremely flat, stable ballistic trajectory. While the driving bands inset on the shank are made of copper, the shells themselves are made from an alloy called TZM, a blend of 0.5% titanium, 0.08% zirconium and 99.42% molybdenum designed for extreme resistance to heat and stress. This extremely resilient and lightweight material ensures that the rounds themselves are as light as possible and as strong as possible for puncturing dense materials like steel, reinforced concrete or earthworks fortifications. This combination of lightness, strength and high ballistic efficiency makes these rounds a great deal faster than traditional major caliber ammunition, a factor which plays a role in the SHG-460LR's legendary ability to puncture thick belt armor, even on capital ships.



The hollow shell contains a heavy blasting charge; 150 kilograms of octanitrocubane explosive. Octanitrocubane is the fastest-detonating explosive currently known; with a detonation velocity of 10,100 meters per second and a RE factor of 2.38, it is more than twice as powerful as TNT, making the explosive charge of the HVC-370 round extremely effective against all types of targets. In specific, the HVC round was developed for puncturing the hulls of foreign-made warships, however in testing it has proved devastating against runways and hardened bunkers, with as much as four meters of hardened concrete penetration and as much as eight meters of earthworks penetration. The shells can be programmed for three different detonation modes; a proximity sensor can be armed that allows the shell to detonate at a programmable distance from its target, or the fuse can be set for impact or time delay, in which the shell will pass through the outer wall of its target and detonate inside. The time delay function is used for bunker busting, naval combat and runway cratering, while impact is used for general bombardment duties and proximity for anti-personnel or general anti-materiel duties.



The propellant block is a potent mixture of hexanitroethane oxidizer and octanitrocubane fuel, the same propellant used in MTD-designed missiles. In this application, the highly-perforated block of propellant is injected into a mould and coated in a combustible nitrocellulose protective film for storage. The cylinder of propellant is cast in such a way that a hollow cavity is placed in the center, into which the HVC-460 round is placed. Once the round is stabilized in the propellant block with a combustible nitrocellulose plug, the completed round is ready for delivery. A completed round of ammunition with its integrated propellant is 52 centimeters in width and stands 223 centimeters in height; it weighs 567 kilograms and contains enough explosive power to fire its round a distance of more than 68 kilometers at more than seven and a half times the speed of sound.

[Pharthan]

Theia Prime
Author: Marquesan

Overview:
Theia Prime is the name given to an extremely powerful optical targeting suite fielded on large warships in a single, stabilized and isolated turret. The system incorporates an extremely high resolution still and video camera with a very large telephoto lens, a Coherent Doppler/LIDAR (CDL) array, a Continuous-Wave Infrared Camera and a set of three laser rangefinders. The armored turret in which Theia Prime sits is a low-RCS design which is triple vibration isolated and stabilized with super fine adjustable electric motors. The entire turret is a sealed design, cryogenically-cooled with anti-glare lenses for extreme image purity and outstanding low-light/zero lux performance. Theia Prime is designed to provide crystal-clear situational awareness in sensor fusion from a multitude of different sources with an unprecedented level of data coherence and resolution. Theia Prime seamlessly integrates identification, targeting and fire control on an ultra-fine level, precisely accounting for all possible variables and bringing to bear a wide network of sensors to completely account for surveillance of the battlespace and also for present threats to the vessel.

Theia Prime Turret:
The turret moves as a unified structure with the primary gimbal, which utilizes direct-drive brushless torque motors with rare-earth magnets and high accuracy angular transducers coupled directly to precision shafts for accurate and smooth 360° continuous motion. The absence of gear trains and other drive mechanisms eliminates position error contributions due to mechanical hysteresis and backlash. Directly-coupled high-resolution position transducers ensure highly accurate and repeatable positioning. A built-in azimuth slip ring provides for continuous rotation. To maximize positioning and velocity performance, high torque brushless, slotless servomotors are utilized throughout the entire assembly. These motors have all of the advantages of a brushless direct-drive motor — no brushes to wear, no gear trains to maintain and high acceleration and high speeds. Since it is a slotless, ironless design, there is zero cogging, meaning that there is absolutely no torque ripple. This results in smoother motion throughout travel and more precise positioning. Large diameter, matched-set ceramic ball bearings maximize performance with respect to wobble, moment stiffness and rotating friction. The ceramic ball bearings are held to ABEC-9 standards, and are much harder than steel balls (over 100% harder). This, combined with their excellent surface finish is the reason they dramatically out-wear steel types. In identical running conditions, the balls in ceramic bearings exhibit less than 10% of the wear of steel balls and have a considerably finer surface finish. The large diameter bearing permits large payload capacity without compromising performance. Casting gimbal yokes provide high stiffness to maintain gimbal accuracy under dynamic conditions.

Sensor Suite:
Theia Prime is built around its primary optical sensor, an array of 220 CMOS sensors arranged around a central focusing lens. This "gigagon" array uses the CMOSIS CHR70M, a 35mm optical sensor which operates at 10,000 by 7,096 pixels, or 70 megapixels, at a frame rate of 3 FPS. Together, the combined power of the camera is a whopping 15.4 gigapixels, the most powerful single camera ever built. At full resolution, three full-sized stills can be taken per second, or the camera can be fired at intervals giving higher framerates at lower ultimate resolution for high speed tracking, up to 70 megapixels at 660 FPS, with variable frame rates and image qualities selectable dependent on mission parameters. The focusing lens is fitted to a fully automatic SLR Telephoto lens designed specifically for Theia Prime. The massive lens uses direct drive stepping motors to adjust its focus and is fully encapsulated in the Theia Prime turret. The zoom focus of the lens is designed to focus on objects between 29 and 52 kilometers away using a Catadioptric system, but with the extremely powerful camera behind it, can resolve extreme detail at much greater distances, with facial recognition possible as far as 120 kilometers. The focal length of the massive lens is 5,150mm with a minimum object distance of 120 meters. Exposure control is accomplished with the use of built-in ND filters, corresponding to f/14, f/16, f/22 and f/32. The SLR lens itself is 500mm in width and 600mm in height and a massive 1,890mm in length. Spherical main and secondary mirrors are ultra-smooth gold-coated beryllium and all lenses are finely ground and polished magnesium fluoride-coated sapphire. The entire assembly is krypton/argon filled and exhibits truly world-class zero-distortion performance, even in zero lux conditions.

The data from the Theia Prime camera feeds the ship's central fire control and targeting systems, and is referenced to an 8-Megapixel ultraviolet camera shooting in the 190nm to 400nm range and an extremely long range 1080p continuous wave infrared camera in the 300/2,000mm format with zoom laser diodes. Integrated fire control is provided by a highly advanced 1.5 micron Coherent Doppler/LIDAR array. CDL uses dual summed beams operating spaced apart and at different frequencies to take extremely precise measurements of windspeed, particulate matter and other atmospheric variables between the vessel and the target. Paired to each CDL is a set of three 80mJ Laser Rangefinders, operating at 20 pulses per second at the 635nm wavelength. Each beam has less than .3 mrad divergence and the paired system is used to positively locate and track a target, even one moving at incredibly high speeds so that weapons may be brought to bear to counter the threat.

Illumination Turret:
An identical armored low-RCS turret to the sensor suite contains an extremely powerful spotlight which can be synchronized to the sensor turret or operated separately. Visible as far as 210 km away and capable of illuminating aircraft at cruising altitudes in the upper atmosphere, the stabilized, fast-moving xenon short-arc lamp is among the most powerful battlefield lights ever produced. A 50-kilowatt xenon lamp is at the heart of Theia Prime's illumination turret, housed in a graphite housing with carbon/carbon stays reinforced with boron carbide ceramic to handle the extreme heat produced by the massive lamp. The lamp itself is cooled with Fluorinert dielectric fluid and uses ultra smooth gold-coated beryllium parabolic cold mirrors to focus a finely-collimated beam of pure white light through a spinel nanoceramic transparent armor emitter. These lamps produce a tight focus even out to maximum ranges and are extremely useful for battlefield illumination. A switchable infrared filter is contained inside the lamp assembly; a motorized cylinder drives a specially-coated glass cylinder which encapsulates the entire bulb and allows only IR light from the bulb to penetrate the tube, making the powerful light invisible to the naked eye. This allows an extremely powerful IR beam to be shot out to a distance of 70 km, a useful and deadly application for combat operations.

[Pharthan]

Reserved

[Pharthan]

[RESERVED]

[Pharthan]

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High Resolution Image
REGENT-CLASS
ASSAULT DREADNOUGHT

RESTRICTION LEVEL FOUR*
UNIT COST: $184 Billion NSD, LIMIT TEN UNITS PER PURCHASE (INCLUDES Shogun AND Regent COMBINED)
DOMESTIC PRODUCTION RIGHTS NOT AVAILABLE

NAVIGATION
Propulsion System
Armament
Electronics Suite

Stats:
Class: DBGCVN, (Guided Missile Battleship/Aircraft Carrier, Nuclear)
Hull Style: Monohull
Length: 2497 feet (761 meters)
Width: 465 feet (141 meters)
Height: 509 feet (155 meters) (from waterline) 606 feet (184 meters) (with draft)
Draft: 97 feet* (29.5 meters)
Tonnage: 1,228,000†
Speed: 36 knots (41 mph, 66 km/h)
Aircraft: 170†
Boats:
6 RHIBS
2 Fast Attack Craft
Ship's Force: 4,980†
Air Wing: 7,120†
Deployed Marines: 5,688†

Armament:
610 Standard VLS Tubes
120 Oversized VLS Tubes/BM Tubes
6 Triple Torpedo Tubes
3x SGH-460LR Major Caliber Guns, 58.62 Caliber (18")
2 15 MW FEL
12 Quad-Anti-Ship-Missile Tubes

Defenses:
8 1.2MW FEL
9 30mm Shield CIWS
4 57mm Dual Advanced Gun System/CIWS
6 25mm Mk3 Rapier Defense Autocannons
24 .50-cal Dagger ROADS
17 NRAM-32 Longsword (24 Missiles each)
240 Active Anti-Torpedo Decoy-Explosives
9 Active SONAR Decoys, towed
24 .50-cal Machine gun posts

Electronic Systems:
Testudo Prime Central Processing & Fire Control Suite
SANMEN Hierarchal Communications Suite
Theia Prime Electro-Optical Sensor Suite
Caelus Prime Over-The-Horizon Radar Suite
HMS-717 Synthetic-Aperture Sonar Suite

Armor: Steel/Kevlar/Carbon Fiber
Belt:21"
Bulkheads:15"
Deck: 12
Turrets:15"

Power & Propulsion
Power Source: 3 SD1H3 3,700Mw PWR
Back up Source: 10 Mw Diesel Generators
Battery Back up: 24 Hour life, 8 for propulsion
Propulsion: 6 Asimov Engineering SD-1 Waterjets.
(3.341 Million Horsepower),
2 Asimov Engineering SD-4A Azipods (110MW)
Secondary Propulsion: 2 Internal Asimov Engineering
CV-2 Motor-Propulsors (110 MW)
Tertiary Propulsion: 12 Extending Maneuvering Azipods
Maneuvering: 7 Athwartships Propulsors

GENERAL DESCRIPTION:

The Regent-class of dreadnought is a vessel based upon the Shogun-class, which was designed and built jointly by Halcyon Arms and Myrmidon Tactical Design (who designate it as the Type-100 Sea Dweller), designed as an Over-The-Horizon Radar platform combined with strike-functions utilizing this function. Whereas the Shogun-class is able to project an intimidating force, it lacks considerable capability to operate on it's own, defend itself from submarines, and deliver long-range strikes. The Regent-class covers all aspects of battle. It is able to act in anti-surface, anti-air, anti-ballistic missile, strike vessel, amphibious assault ship, aircraft carrier, and picket ship.

It is powered by a trio of large 3.7 Gigawatt Pressurized Water Reactors powering a common electrical distribution system. All propulsion power is derived off of this system in an all-electric propulsion plant. As a result, the ships are capable of 20 years of operation before needing to refuel, however, range is restricted by necessity of maintenance on the propulsion plants, which is recommended every three years at the longest.

The Over-The-Horizon Radar has a range of 300 miles to 1,500 miles, allowing for extreme range detection of enemy vessels, aircraft, and ballistic missiles. Combined with this system, the Anti-Ballistic Missile lasers are capable of taking out targets in orbit several hundred miles away, with a surface-to-surface range of approximately 20 miles. This design was deemed necessary to kill the Regent's primary enemy; extreme-range ballistic missiles.
These anti-ballistic missile lasers are the outermost layer of the five-tiered defensive system. The fourth layer is comprised anti-air missiles and strike-missiles launched from VLS tubes, able to strike over the horizon and defend against long-range targets. A third layer is made up of the point-defense lasers, able to kill only in a line-of-sight manner, limiting them to roughly 12 miles from the horizon for surface-to-surface; those higher mounted can achieve surface-to-surface kills at 18 miles. Against air targets the range is largely based on weather conditions, though it can extend out to effectively kill at 50 miles. The second tier is manned by rolling-airframe missiles with a range of nearly 12 miles; they can be programmed for several kill modes to take out a variety of targets. Finally, the inner tier is comprised of 30mm, 57mm CIWS, 25mm autocannons and 12.7mm machine guns. The 25mm autocannons and 12.7mm cannons are not designed for point-defense, though they can be utilized as such. The 57mm CIWS is sufficient for kills at 3 miles, with the 30mm for just over two miles of range.

The ship is protected heavily against EMP, especially high-altitude bursts. When Condition Zebra is set, the hull of the ship functions well as a multi-tiered faraday cage. Those systems not able to be protected against EMP have stored replacement circuitry components and are designed to be easily replaced.

The surface-to-surface radar range extends just over 26 miles and can be used to detect ships at a slightly further range, pending their height. As the Regent is effectively blind beyond this range until it's OTH radar range, the superdreadnought is usually deployed with a carrier strike group for additional protection, radar picketing, and AWACS coverage, which allows the ship to utilize the full extent of it's missile systems.

As a primary gun armament, the Regent-class boasts three triple 18" inch guns, capable of heavy bombardment of shore targets. Against enemy ships, the Regent carries a variety of VLS launched missiles, to include large up to 60 BGM-11 Spear Anti-ship/Cruise missiles with a range of 120 nautical miles or large surface-launched ballistic missiles and 96 BGM-18 Lance Anti-ship missiles with a 400 nautical-mile range, designed as carrier-killer missiles. Against generic targets the Regent has 2010 VLS tubes, able to launch smaller cruise missiles, strike missiles, and anti-air missiles.


Amenities:
Crew amenities, for the most part, are as standard with any Pharthan Navy ship. Each individual sailor is allotted their own "Coffin-Rack," which storage underneath the rack, which sits in a tray that can be lifted to expose personal storage space, as well as a personal locker. Each rack space comes with a personal reading light, towel-hangar, emergency egress breathing device stowage, personal six-outlet power strip, and a state-of-the-art Smart Reveille Suite, or SRS.
The SRS monitors the sleep pattern of the sailor, and can be programmed in with the applicable Watchstation Schedule, Morning Routine & Muster, et cetera. For those requiring certain amounts of sleep such as pilots, it can also advise the sailor on when they should be falling sleep. The SRS is a built in computer roughly the size of a smart-phone, built into the rack itself and is tamper resistant. It also includes vibration sensors which are, as a standard, built into the walls and base of the rack, as well as separate remote sensors to be able to differentiate natural ship motion from the motions of the sailor.
To promote healthy sleep, the SRS will begin playing soft music of the sailor's choice to ease them awake within the optimal period prior to their next appointment, as well as emitting "peaceful" light.
In the event the sailor is late for watch or muster, a louder alarm and brighter lights will be emitted.
The speakers for the sounds are directed inward, and additional sound-proofing is provided to prevent disturbing other sailors.

While differing on each ship and in each compartment slightly, each berthing location houses between eight and 12 enlisted sailors. Officer berthings may be singular, double, or a quartet, depending on rank and station. Each berthing space comes with one computer, which, when available, is linked to the ship's internet and unclassified network; internet browsing on this network is often limited for security reasons, though general social media is allowed. A separate web-browser notebook is also provided to allow sailors to download movies, games, videos, et cetera, and more extensive chat with family. While still monitored for security reasons, this is not connected to the ship's unclassified data network and is more free to use.
Each berthing space has an ample amount of electrical outlets and storage space, both communal and personal, to allow for personal gaming systems, and each berthing space has one large flatscreen TV, with space for an extra. Additionally, every berthing space has their own minifridge and microwave oven.
For every forty sailors there is an additional community space, allowing for more activities to include the watching of movies, TV, gaming, et cetera, without disturbing those sleeping at the time.

For every sixteen sailors there is at least one head, to include two showers, two toilet stalls, and three sinks, though some areas may include more based on availability. These are often of stainless steel construction for sanitary reasons, and the shower-stalls are curtained off, though some may include a hard vanity door.

Gym services include rowing machines, various styles of treadmills, weight machines and racks, yoga mats and equipment, sports equipment for any open areas, and more at the request of the ship's recreational officers.

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