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Tyrfing-class SSVN [DO NOT POST]

PostPosted: Sat Mar 07, 2015 8:58 pm
by Pharthan
Go To Halcyon Arms Storefront For Purchase


TYRFING-CLASS
SUBMERSIBLE STRIKE AIRCRAFT CARRIER


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RESTRICTION LEVEL FOUR
Unit Cost:$12 Billion
DPR Cost: $175 Billion
Tyrfing-class Submersible Strike Carrier
Stats:
Class: SSVN (Submarine, Aircraft Carrier (Volar), Nuclear)
Hull Configuration: Soft Chine, Displacement, Tapered Low Chin Spoon Bow, Double hull
Displacement:
  • Surfaced: 72,000t (64 285 long tons)
  • Submerged: 132,900t (118 660 long tons)
Length: 820ft (250 meters)
Width: 154ft (47 meters)
Draft: 63ft (Surfaced) (19.2 meters)
Height: 34ft (Surfaced) (10.3 meters)
Total Height: 97ft (29.5 meters)
Speed: 22 knots (Surfaced), 27knots (Submerged)
Test Depth: 250 meters
Crush Depth: 300 meters
Power Supply:
  • (2) S6H1 310MW PWR
  • (2) 5MW Emergency Diesel Generators
  • (2) Battery Banks
    • 9 Day Propulsion Duration (Speeds < 5knots)
    • 3 Day Full Propulsion
    • 45 Day Hotel-Load Duration
    Propulsion:
    • (2) Asimov SEMP-9 Submarine Electric Propulsion Motor, 107,280 hp (80 MW)
      Pump Jet Propulsor System Mk6X
    • (4) Maneuvering Thrusters, Retractable
    • (2) Deployable Outboard Motors, 2,000hp
    Range: Limited by food supplies, Maintenance requirements
    Electronic Control Systems: Fiberoptic Fly-By-Wire
    Sensors:
    • Jupiter Surface Search Radar
    • SeaDragon V Air Search Radar
    • Hero-S Flight Control Radar
    • SEAFALCON XL Sonar Array
    Armament:
    • 10 VLS Pods (4 ESSMs/3 Tomahawk missiles/3 Harpoon missiles,
      12 Stinger missiles/ 1 UAV)
    • 6 Torpedo Tubes, (Bow)
      • Dia: 533mm (21in)
      • Length: 8 meters (26.2ft)
      • Launch: Water Ram Expulsion
    • 90 Anti-Torpedo active countermeasures/explosives (45 PORT/STBD)
    • 16 (8 PORT/STBD) Passive Countermeasures
    Ship's Force: 140 Crewmen
    Air Crew: 412 Airmen
    Mission Crew: 64
    Aircraft: 12-18
    Air Platforms:
    • 2 Parallel Ski-Ramp
    • 2 Parallel 5-Wire Traps (In line w/ Ski Ramp)
    • 2 Centerline In-Deck Elevators (One Fore, One Aft)
    • 1 Designated VTOL Landing Site (Aft)
    • 4 Aircraft Parking, Centerline
    Lockout Chambers:
    • Crew Sized: 2 (Up to 12 Personnel)
    • Elevator Lockout Chambers: 2


DESCRIPTION
Constructed by the Pharthanian companies of Halcyon Arms and Asimov Engineering, the Tyrfing-class is one of the most extravagant vessels made by Halcyon Arms, and is far from necessary for the majority of Navies. It is sometimes rumored that the Tyrfing-class was built on a dare, as the notion of a submersible carrier is often considered a ridiculous one. Indeed, Halcyon Arms did take on the project as a challenge to that notion.

While more expensive than the surface dwelling counterparts, with fewer aircraft capabilties, the Tyrfing-class brings an element of surprise to the table not offered by other aircraft carriers. It features two launch-recover sections, parallel to each other. Two ski-ramps flank the sail, with conformal sections forward of them to prevent the ski-ramps from hindering the hydrodynamics of the submarine. EMALS were often a goal of the project, but this presented too many problems with corrosion and the space required was considered prohibitive for a submarine. As such, the Tyrfing can often only accommodate VTOL and STOL aircraft, though it does feature two four-wire traps in-line with the ski-ramps, allowing more conventional naval fighters to land and, if necessary 'bolter,' and abort a landing after touching down. While the aim was to field between 12 and 18 aircraft, more may be utilized if they are smaller; small helicopters and UAVs could easily number in the thirties in number.

The Tyrfing flight deck is flat, with one elevator forward and one aft, allowing to rapidly cycle aircraft to and from the hangar bay from the flight deck. The elevators are themselves able to be enclosed from the rest of the hangar deck and serve as a large lockout chamber. With this capability, the Tyrfing can also deploy large minisubs without surfacing.
The goal is to be able to launch a full squadron of fighters and supporting helicopters, to include an AEW helicopter to guide and act as a control unit, allowing the Tyrfing to slip back beneath the waves, and then, when required, the Tyrfing can surface once more and recover it's aircraft. The relatively small number of aircraft was chosen both for it's ability to deliver an adequate strike package while also being small enough to launch and recover quickly without requiring hours of operation. A larger aircraft complement would require a great deal of time to recover, at which point a surface-dwelling carrier would be more suited, anyway.

Stability was considered the absolute biggest issue when developing the submersible aircraft carrier. Much of the Tyrfing's structure goes against modern convention with submarines. The flat flight deck sacrifices depth, and the relative wideness of the hull sacrifices speed; this is made up for as much as possible by having an elongated front to help preserve any hydrodynamics possible, and much of the structure is reinforced more than it would be on a conventional submarine. The wide hull allows for a great deal of stability, and the bow, a low-chin spoon bow, helps this as well. It also has stabilizing fins running along the sides. Without these features, landing aircraft on the submarine would not be easy for manned aircraft.

The Defensive Suite of the Tyrfing is composed of five tiers. Passive stealth is it's most basic and "outermost tier." All noise generating systems are mounted on noise-cancelling brackets and shock absorbers, crew wear sneakers or other "silent shoes" as opposed to common boots, machinery is calibrated and machined to ridiculous levels, and much of the decking is "floating," in that it does not directly connect with the outer pressure hull. Furthermore, to protect against Magnetic Anomaly Detection, magnetic mines and torpedoes, the entire submarine is degaussed regularly and "degaussing wires" are run along the hull for active-degaussing. While on the surface, the Tyrfing features a relatively stealthy hull, keeping down it's RCS to prevent detection, and even while conducting flight operations it sits rather low in the water to keep from being spotted on radar or visually.
The fourth tier is it's own stealth defensive systems. The Tyrfing can detect and automatically generate canceling waves in the event of a sonar ping, providing a sound wave counter to the original. To prevent this method and passive sound cancelling from making the submarine look like a "hole in the ocean" and providing too much stealth, the Tyrfing can provide either pre-recorded or actively recorded ambient noise to to replace any ambient noises absorbed by the hull in excess. The third tier is it's own torpedoes, able to track and engage enemy torpedoes and depth charges. Should the target be an air target, VLS tubes and the torpedo tubes can launch specialized surface-to-air missiles. Failing that, the submarine can launch active countermeasures to include towed decoys, AUV decoys from torpedo tubes or VLS tubes, Finally, smaller "counter-torpedoes" are provided to engage torpedoes at a much closer range, killing them with a concussive blast.

    Warfare Roles of the Tyrfing-class
  • Aircraft Operations
  • Combat Search and Rescue
  • Air Assault Command/Deployment Ship
  • Strike (Surface-to-Ground)
  • Naval (Surface-to-Surface)
  • Anti-Submarine
  • Signals Intelligence
  • Electronic Warfare
  • AUV Deployment
  • Submersible Delivery Vehicle/Minisub Deployment

S6H1 Pressurized Water Reactor Plant
310 MW
S6H1 Stands for:
  • S: Submarine platform
  • 6: Contractors sixth design generation
  • H: Halcyon Arms. Contracted Designer
  • 1: First iteration of the present Reactor Design


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Shown is the SD1H3. Actual reactor plant for this vessel is scaled down.

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The S6H1 is a Pressurized Water Reactor utilizing nuclear fission for the purpose of heat production to be used to create steam for usable work. The S6H1 is jointly designed and built by Halcyon Arms and Asimov Engineering. 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. The reactor core is rated to 310 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.

A scaled up version of previous designs, the S6H1 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. All water which passes through the reactor and it's coolant loops are referred to as "The Primary," with all water that passes through the steam plant referred to as "The secondary." The boilers provide steam for three turbine generators, one of which is used to power the reactor coolant pumps and assist with propulsion, and the other two powering the Common Electrical Distribution System, though they may provide power for the reactor coolant pumps. The steam, once passing through all systems, directly condenses into water in condensers and is pumped back to the boiler units. The secondary water never comes into contact with primary water, and is kept at much lower pressures, allowing for it to boil when achieving the same temperature as the primary. The primary water is kept far below saturation temperature for the pressure it attains, and uses a pressurizer as a surge volume for it's water.

The S6H1 utilizes All-Electric Propulsion. Instead of main engines driving a shaft with separate turbines generating power for the ship's electric plant, all major steam-driven turbines provide electrical power. This power is then transmitted as needed around the ship, with the majority, especially in transit or combat, going to the pump-jet propulsors. This eliminates the large, heavy shaft and it's bearings, much of the lubrication oil system, and the massive and expensive reduction gears. Overall, this makes the entire power plant smaller, cheaper, and easier to manage and maintain. The bearings on turbines are electromagnetic, reducing friction.

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 S6H1 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 S6H1 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. The S6H1 also utilizes an Emergency Core Cooling system, which pipes primary-system water via thermal driving head to heat exchanger that uses seawater. Like others, this system requires no power and initiates automatically.

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.

In the Tyrfing, the dual-reactor plant starts aft of the center of the ship and takes up the majority of the aft end of the boat. Boilers are placed centerline, where they may sit higher, and the reactors, which share a reactor compartment for size concerns, sit on either side of the boiler units. The boilers are placed higher to aid natural circulation. Auxiliary reactor systems required to be maintained in the reactor compartment must be shielded ring the reactors.


Amenities:
Crew amenities, for the most part, are as standard with any Pharthan submarine. Most 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. Some of these racks, especially for smaller submarines, must be "hot-racked," meaning that multiple sailors, usually only two, must share a rack. For these cases, the SRS may be keyed to either individual.
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. The SRS also monitors temperature, and features a fan to bring in air from outside of the rack, with a heating element should the rack be too cold.
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 twelve and 24 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. However, due to the nature of being onboard a submarine, internet connection is not always available, and may be of limited bandwidth when it is available.
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 sixty 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, yoga mats and equipment, sports equipment for any open areas, and more at the request of the ship's recreational officers. Loose weights are not allowed onboard the submarine, and elastic strength bands must be used instead for strength-training. Each of the various types of equipment is mounted on a shock-absorbing system to prevent creating additional noise detectable from outside of the boat, and equipment is selected specifically for quietness.

Combined Radar Telescoping Mast
The Combined Radar Mast, or CSTM, features multiple radar units all located in one centralized mast to lower the number of pressure hull penetrations and reduce the surface RCS.
  • Jupiter Surface Search Radar
    Operating at 800-950MHz, the Jupiter Surface Search Radar is a 2D Phased Array Surface Search radar, but can be used as an auxiliary Air Search Radar. It sits low in the CRTM, and has a range of 14 nautical miles at line-of-sight to horizon, though it can detect large ships at greater distances, and air targets at 45 nautical miles accurately.

  • SeaDragon V Air Search Radar
    Operating at 2-4GHz, the SeaDragon V Air Search Radar is a 3D Phased Array Air Search radar, but can be used as an auxiliary Surface Search Radar. It sits high in the CRTM, and has a range of 18 nautical miles at line-of-sight to horizon, though it can detect large ships at greater distances, and air targets at 150nmi nautical miles accurately.
  • Hero-S Flight Control Radar
    Operating at 6 GHz, the Hero-S Flight Control Radar is a small 3D Phased Array Air Search Radar that also includes a radio transmit and receives data to and from incoming aircraft to help guide them into the vessel for landing purposes. The Hero-S is short ranged but highly accurate, guiding in aircraft during their last five miles of approach.

SEAFALCON XL Sonar Array
The SEAFALCON XL system is a modification upon smaller SEAFALCON systems used in smaller submarines. It is more than just a single sonar array; it incorporates a number of arrays about the boat. Through coordination of all of it's components and a powerful central computer system, the SEAFALCON XL is able to detect, sort, and determine the nature of all of it's targets, including being able to sort out countermeasures with accuracy and precision. The SEAFALCON XL can vary tone, frequency, timbre, and duration of the active "ping," based on environment automatically.
  • SEAFALCON Mk5X
    The SeaFalcon Mk5X was the start of the SEAFALCON XL, and sports a ball-receiver transmitter in the bow of the Tyrfing and is the primary unit of the SEAFALCON XL system. It is capable of 3D detection of targets at long ranges underwater, up to and sometimes in excess of the horizon, and includes high-accuracy in target and clutter rich environments.
  • MaWAS
    The Maritime Wide Aperature SONAR system is a wide-aperature phased array sonar system is mounted along the sides, both top and bottom of the submarine, in order to accurately and passively acquire targets and threats to the submarines in all directions around the submarine. It also includes an aft-section, allowing the submarine to "see" behind itself. Unlike typical single-propeller submarines, the MaWAS of the Tyrfing's two jet-propulsor system leaves room in the aft end for a rear-facing sonar array as well. The aft section of MaWAS also features a pinging transmitter to coordinate with the SeaFalcon Mk5X's ping, to give each ping a 360 Degree view of the submarine.

ELECTRONIC CONTROL SYSTEMS
The vast majority of controls are transmitted via fiber optic cable, minimizing the amount of space aboard that must be shielded against EMP attack, as well as providing an easy means of rapid and large data transmission. This includes propulsion and steering controls, minimizing response time of ordered ship's bells and directional changes. Mechanical and electro-hydraulic systems remain in place, but are not a primary means of operation.
Most of the electronic systems, or at least those that can be safely, are over-the-counter to reduce costs and ease maintenance. Almost everything can be swapped out to allow for near complete vessel upgrades to adapt to new technologies and conflicts. This also allows for increase mission adaptability. All software can be updated within ten hours, and every electronic system can be swapped out within thirty days.


Photonic Mast
The Tyrfing features three photonic masts, one primary capable of telescoping further, one secondary, and one SIGINT.
The photonic masts, essentially overengineered digital camera masts able to operate in the infrared and low-light scenarios, allow for a minimized number of pressure-hull penetrations. The mast itself telescopes, allowing for a long mast to fit more compactly within the sail. It is also shaped as to help reflect radar away from the receiver to prevent the mast from showing up on radar.
Acting as a glorified digital camera, the photonic mast is also able to zoom in on targets with a significant level of amplification. Each photonic mast has a wide variety of sensors. These masts are also used for navigation, communication, and electronic warfare. Due to this improvement, the typical layout of a submarine is no longer necessary; the control is located lower in the hull, where it can be made more spacious, and it no longer requires the pressure hull to extend through the sail.
The mast itself features a camera with thermographic and low-light settings, a small radar transmitter/receiver for maritime navigation, a GPS unit, and multiple radio/microwave communication transmitter/receivers to allow for encrypted data transmission, high bandwidth data transmission, and long-range low-frequency data transmission. These can also be used to perform SIGINT operations, and the submarine also includes a SIGINT specialized photonic mast.
The Surface Search Navigation Radar attached to these masts is a relatively low-powered system.

Rescue & Survival Systems
  • Survival
    In the event that the submarine is unable to surface and all electrical generation is lost, the crew Tyrfing-class is able to last up to 60 days with maximum deployed aircrew, and considerably longer without or with reduced aircrew or mission crew, though the battery with typical hotel loads only lasts 45 days, but emergency electricity "rationing" may be implemented to stretch this figure far longer. Once electricity is lost, oxygen candles must be used to generate the needed air supply, and lithium hydroxide canisters remove expelled carbon-dioxide from the air. The submarine also maintains enough water on board for just over 60 days of consumption, as well as a Manual Distilling Station to allow for the crew to distill their own water in the event of an emergency. The Tyrfing-class also maintains at least 60 days of non-perishable food for emergency situations in the form of various MREs.
  • MK IV MERB
    To help the sub be located by rescue crews, a total of ten MK IV Martime Emergency Rescue Beacons are located onboard, with five in preloaded canisters set to launch automatically or upon manual command. The other five may be loaded into torpedo tubes or launched via lockout chambers. The MK IV MERB will float to the surface or may be launched from the surface and jettisoned over the sides of the ship, where it will immediately begin broadcasting low-frequency radio signals to the parent organization's Emergency Rescue facilities and begin communicating with GPS Satellites. At six hours, or a preset time, after launch the beacon will begin emitting a high-frequency signal for one hour in addition to the low-frequency signal, allowing rescue crews to locate the beacon, and summarily, the submarine. After this one hour, the beacon will only emit the high frequency signal for one minute out of every five minutes to conserve battery power. It also features infrared LEDs and visible LEDs to help visual acquisition.
    Upon retrieval, the rescue crew may upload transit data, which is acquired both by GPS and internal gyroscope, to trace the travel back to the point of origin.
  • Escape
    In the event that rescue does not arrive, or immediate escape is required, the crew may escape via two lockout chambers, the elevator lockout chambers, and, if absolute necessary, three additional non-lockout hatches around the vessel, and one ventral non-lockout hatch in the event the sub is on it's side or has oddly oriented on the sea floor.
    In addition to launching 50-man life rafts which float to the surface to provide emergency rations and life preserving measures, the Personal Emergency Egress Pressure Suit, or PEEPS, serves as both a personal pressure-suit, tested to 350 meters, and, also allows for deployment of a small personal covered life raft and includes three days of water, three MREs, a small emergency beacon, a flare gun with three flares, and a personal distilling unit. The pressure suit is designed to provide enough air from 350 meters, and is also fire retardant.


Damage Control
Unlike many submarines, the Tyrfing utilizes many quick-acting watertight hatches throughout the ship, as well as having the ship separated out into four major watertight sections; the bow, largely unmanned save for the torpedo room, some storage, and aircrew berthing space, the forward manned section including the command and control section, berthing and storage space, the aft manned section which actually remains largely forward of the centerline of the boat and includes more berthing space, emergency diesel generators, more storage, the galley space, and other crew services as well as Damage Control Central. . The aftmost section, the largest, houses the propulsion section. In this section, there are additional watertight compartments to include Nucleonics; the primary chemistry and radiological controls area, Maneuvering, where the propulsion plant is operated from, and the Main Switchgear, which houses many of the necessary switchboards, breakers, and loadcenters that are highly critical to plant operations, including the reactor coolant pump and decay heat removal systems. A fifth watertight region remains: the hangar bay, which also includes the two elevators which can be made watertight in and of themselves.
Should a major fire or flooding occur, These sections can be automatically partitioned off, manually, or remotely partitioned to prevent the spread of the casualty.

Each compartment comes with at least one, if not more, Damage Control Repair Locker, which is fully equipped with gear for two six-man fire fighting teams, a medical team comprised largely of non-medical sailors trained in first aid, a desmoking team, a dewatering team, an electrical team, pipe-patching team, and a shoring team.


Go To Halcyon Arms Storefront For Purchase

PostPosted: Sat Mar 07, 2015 9:06 pm
by Pharthan
[Reserved - DO NOT POST]

PostPosted: Sun Mar 08, 2015 7:00 am
by Pharthan
[RESERVED - Do Not Post]