Miscellaneous Vessels of the Czaslyudian Military

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Svitlana Tarasyuk-Class Landing Ship

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The Svitlana Tarasyuk-Class is a class of landing ships in service of the Czaslyudian Navy, designed by WURCo., a Czaslyudian arms company. The Tarasyuk-Class replaces the VZNJ RORO Landing Craft in its amphibious and transport capability, in addition to taking on long-term logistical support of the disembarked troops. The Tarasyuk provides hangar and landing facilities for helicopters, as well as two doors for offloading equipment. The vessel has a remarkably low draft in order to deploy in shallow waters including beachheads.

Design
While the hull of the Svitlana Tarasyuk-Class is composed of standard maritime-grade steel, the superstructure is made from lightweight composites to reduce weight and repair costs, as well as lower the radar signature created by many of the superstructure's features. The Tarasyuk displaces approximately 10,000 tons of water fully loaded. The dimensions of the craft are a length of 162 meters, a beam of 25 meters, and a draft of 5 meters. This allows the landing ship to essentially land at shallow beaches and deploy its cargo, either through its forward/rear gates or by offloading it from the deck-mounted cranes. The ship has a crew of 180, with around 20 officers.

The vessel was designed with roll-on-roll-off operations in mind, and includes a spacious interior cargo bay that leads to several loading bays along the deck and a bow and stern gate. These gates include ramps to facilitate the offloading of vehicles across shallow water. In addition to this, the Tarasyuk has a bow-mounted thruster (500 kW, 650 hp) to allow for minute adjustments in shallow water.

The Svitlana Tarasyuk-Class has a capacity of around 1,200 tons of cargo, and is meant to transport, disembark, and provide later logistical support to an entire plastun of soldiers. In total, the Tarasyuk can carry a maximum of 28 MBTs, or 54 APCs, or 40 IFVs. Alongside that, the Tarasyuk can house a single plastun (~400 soldiers) reliably over long distances.

The aft section of the Svitlana Tarasyuk-Class includes a 60m x 25m flight deck for helicopter takeoff and retrieval, as well as a hangar facility built into the superstructure for servicing the aircraft. The flight deck and hangar can both park two helicopters each, giving the landing ship reconnaissance and additional logistical support.

The Tarasyuk is propelled by a two-shaft system working four nine-bladed propellers, powered by four Vodospad DD-407 diesel generators, producing 9,000 kW of power each. The size, as well as the unoptimized propulsion system leaves the Tarasyuk with a top speed of 19 knots, with a range of 8,750 kilometers.

The Tarasyuk-Class has sophisticated communications equipment, being able to freely send and receive information from satellites. As well as that, the Tarasyuk is equipped with the Ohr PPW-221 electronics support system (ESM), which allows it to contribute its enhanced receivers to the less-equipped combat units. The Ohr PPW-221 has greater signal triangulation ability and is able to detect signals at much greater ranges than the Feya-2912 equipped on the Harsk-Class and Tsvetkov-Class.

Providing the Svitlana Tarasyuk with dual fire control and surface search capabilities is the Voyenachalʹnyk-122 AESA multifunction radar. The Voyenachalʹnyk-122 has a range of approximately 20 kilometers, capable of tracking upwards of 50 targets simultaneously. The S-band phased array has no trouble picking out targets among the clutter of the waves in order to track and engage them. The radar acts as the primary navigation and defense radar, providing overwatch for the point defense systems strewn throughout the craft.

In terms of armament, the Svitlana Tarasyuk-Class lacks a definitive offensive arsenal. Most of the equipment involved is for the vessel's own protection or for limited short-range fire support. Dispersed across the deck are crew-operated mounts for 12.7mm CMG-28 general-purpose machine guns, and fore and aft of the bridge upon the superstructure is a single battery of the Kirilov-Hadjuk Close-In Weapons System, with the gun and missile components based in separate turrets on either side. The only 'offensive' armament, which would likely be used to defend itself while it is disembarking materials, would be fixed 2x3 launchers using "Angegh" PRPZ-293 guided missiles (the landing ship has provisions made for the installment of two of these launchers).

For self-defense, the Svitlana Tarasyuk-Class is equipped with a battery of the Kirilov-Hadjuk Close-In Weapon System. The Kirilov-Hajduk Close-In Weapon System is a point defense system that is replacing former Kirilov systems. It features a more advanced fire-control radar, a centralized coordination network, and more advanced missile systems due to the partnership with Vladislav Hajduk, another notable weapons designer for WURCo. The system is organized into "batteries"; i.e. each involving fire control equipment independent from ship operations and two autocannons and several missiles based in a turret. The basis for the CIWS, like its predecessor, is based in the turret of the 5P103 "Urs Negru" SAM system, but in contrast, has different fire control and newer missiles that fit the tubes. The fire control of the Kirilov-Hajduk consists of a Ka-band active phased array radar (range 30 km) and electro-optical sensors (range 15 km) with an approximate maximum detection range of 30 kilometers, although active engagement begins only at 15 kilometers away due to weapons range. The missiles used are Dzʹob-1252 surface-to-air missiles, which have a range of 15 kilometers and a ceiling of 14,000 meters. Using a solid-fuel rocket, the missile can reach speeds of up to Mach 3.8. The Dz'ob-1252 makes use of active MMW radar guidance, which gives the missile very high resolution for target interception. Once intercepted, a radio proximity fuse will detonate its 13-kilogram blast-fragmentation warhead. The guns, on the other hand, have a far shorter engagement range, only able to effectively fire upon targets at a range of 3,000 meters. The two 20mm autocannons have a rate of fire of 4,500 rounds a minute each, and typically fire armor-piercing discarding sabot rounds with a sub-caliber tungsten penetrator. The turrets are able to be equipped with a stealth casing to improve the vessel's overall observability by covering most of the very obtuse shaping of the standard turret. Each "battery" usually includes eight missiles (though 18 more missiles stand ready in a magazine behind the turret) and 1,300 rounds of ammunition; multiple of these systems can be mounted on a naval vessel.

The "Angegh" PRPZ-293 is a surface-launched derivative of the air-launched "Perun" PRPZ-242. The "Angegh" is a surface-launched, multi-stage guided missile with a high-powered booster, fire and forget capability with laser guidance to the target area and terminal infrared homing. The first booster stage rapidly propels the missile to speeds up to Mach 2.6, after which the second and final sustainer missile stage maintains that speed while maneuvering to impact targets. The 130-kilogram "Angegh" is designed to engage single and multiple targets (including tanks and other AFVs, fortifications) from distances as great as 15 kilometers away. The missile guidance relies on manual targeting via laser-beam riding until the user is assured the missile will reach the target at which point the missile will seek out targets on its own, using infrared homing during terminal flight to reach its target. The 28-kilogram blast-fragmentation warhead can penetrate nearly 2,000 millimeters of steel armor. As a surface-launched variant, it is expected that by data-linking laser designators from landing combat units the missile can be guided to relevant targets.

Finally, the Tarasyuk is equipped with the Tzesar-46 Combined Countermeasure Softkill System (Tzesar-46, or C2S2). This apparatus is a naval self-defense system that connects the ships' sensors (as well as providing some of its own) to a relevant countermeasure. The C2S2 augments the systems of the Tarasyuk-Class with electro-optical, infrared, and lightweight 2D phased arrays to detect incoming threats from advanced guided munitions and is capable of deploying the proper countermeasure. These countermeasures include the Shok and Trepet flares and chaff dispensers, Fasad-849 rocket-propelled radar decoys, two-color (near-IR and mid-IR) infrared and electro-optical dazzlers to disrupt their respective guidance systems, radar spoofing and jamming via the Voyenachalʹnyk-122 AESA radar, and a laser detector and subsequent aerosol smoke grenade launcher. This provides multiple softkill measures across a variety of possible spectrums, passively protecting the otherwise vulnerable landing ship.

Ships in Class

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Feodosij Petrov-Class LHD

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The Feodosij Petrov-Class is a class of amphibious assault ships in service with the Czaslyudian Navy, designed and produced by WURCo., a Czaslyudian arms company. The Petrov-Class combines rotary-wing craft and landing ships held within its well deck to swiftly deploy ground forces onto land while keeping at a safe distance. While the Petrov is first and foremost an amphibious assault ship, its helicopter capacity can allow it to aid in anti-submarine warfare with ease.

With the Czaslyudian Navy not interested in pursuing any costly carrier designs, the Feodosij Petrov-Class remains the largest combat vessel in service in any fleet of the FRCP. The amphibious assault ship serves as the cornerstone of any Czaslyudian Naval Infantry force.

Design
The Feodosij Petrov-Class has a full displacement of 30,140 tons, surpassing even the submerged displacement of the Yakov-Class SSBN. It has a length of 226 meters, a beam of 35 meters, a draft of 11 meters, and a highest point of 65 meters off the water. The hull of the Petrov-Class is mainly composed of dielectric composite materials above the water line, helping reduce its radar returns alongside its shaped exterior. In addition, the interior of the vessel has aramid fiber plates to defend critical areas from spalling and fragmentation. Due to the increase of automated ship systems, the crew complement of the Feodosij Petrov-Class is only 680 sailors, with 40 officers.

The Petrov-Class relies on a two-propellor system to reach speeds of 21 knots. Most of the ship systems and propulsion are powered by a CODLAG (Combined Diesel-Electric and Gas) setup, using two Korolev REA-952 gas turbines (50,000 kW) and an array of smaller diesel engines (4 x Vodospad DD-407) for backups. The Petrov-Class also incorporates integrated electric propulsion, eliminating the need for gearboxes and streamlining both powering ship systems and propulsion. This also makes an impact upon its sonar signature, as the lack of gearboxes and clutches makes a greatly reduced and harder to recognize signature than conventionally-powered vessels. The Feodosij Petrov-Class is meant to support the Federal Republic's amphibious capabilities around the world, and as such has a high range of 13,775 kilometers.

The Feodosij Petrov-Class is designed with a helicopter flight deck, a below-decks aviation hangar, a vehicle and troop storage facility, and a well deck. The flight deck offers seven parking spots for helicopters, two elevators from the aviation hangars (one after along the center, an auxiliary behind the island), and a ski-jump ramp for deploying STOL aircraft, primarily UAVs. The aviation hangar allows for up to 26 rotary-wing aircraft to be carried, with provisions for carrying drones (either the BR-3 or BR-10). Helicopters include the utility/naval VIGH-15, the combat VI-148, or up to VI-20 medium-lift helicopters. The flight deck includes an automated Optical Landing System, which gives directions to oncoming aircraft for more efficient recoveries using its radar for guidance. The aviation element of the Petrov-Class allows for a speedy deployment of light units, needed for extractions and other missions.

Meanwhile, using a stern-mounted gate, the Feodosij Petrov-Class can deploy a bulk of its carried forces in a rapid manner. The Petrov is superior to other landing or amphibious platforms because the vessel can deploy nearly all its forces well outside of the range of ground-based defenses, keeping itself safe from enemy attacks. The well deck can carry 6 M-748 mechanized landing craft and 10 LK-240 air-cushioned landing craft, as well as provide deployment methods for Type 319 amphibious IFVs.

The mechanized landing crafts, the M-748, are conventional landing craft and the larger of the two options available to the Petrov. The M-748 is capable of ferrying two menshyy plastuns (~56 soldiers each) alongside 2-3 main battle tanks or 4-6 APCs. The craft can reach a top speed of 28 knots and a range of 375 kilometers at economical speeds, and because of the distance from its mothership, is equipped with HF and LF radio communications, an L-band navigation radar, and satellite maps. The M-748 is propelled by two waterjets and a bow thruster, allowing it great flexibility in littoral areas. Its catamaran hull grants the ship more capacity for troops and equipment while giving it similar performance to a low-end air-cushioned vehicle. For personal defense, the M-748 is equipped with a radar-guided 20mm DkH-63 autocannon in an unmanned turret for anti-personnel and anti-aircraft use and four KPUPO-4 surface-to-air missiles.

The LK-240 serves as the other option for aquatic troop deployment. An air-cushioned vehicle, the LK-240 is capable of much greater speeds and can reach a far greater swath of the world's coastlines and beyond, allowing troops to be transitted beyond unsecured beaches (or swamps, marshes) and into friendly-occupied landing zones. Like the M-748, the LK-240 is equipped with a spread of radio communications and navigational equipment. The LK-240 can reach regulated speeds of 47 knots over a range of 356 kilometers, or a top speed of 53 knots. It can carry up to one main battle tank or 2-3 APCs alongside a single menshyy plastun. As for armament, the LK-240 is better off than its conventional counterpart and includes a stripped-down version of the Kirilov-Hadjuk Close-In Weapons System involving only the radar and two autocannon turrets, as well as four 12.7mm CMG-28 machine guns (two in remote weapon stations, the others manned) and six KPUPO-4 surface-to-air missiles.

In the holds of the Feodosij Petrov-Class is enough space to contain its aviation, aquatic, and amphibious elements. The maximum onboard Naval Infantry presence consists of four plastuns (~400 each, 28 tanks each (if an armored formation)), 56 MBTs AND 90 IFVs/APCs, and numerous up to 85 additional support vehicles. The Petrov-Class includes semi-comfortable living quarters for the embarked soldiers, including extensive medical facilities. The Petrov has an 84-bed hospital, with satellite-based telemedicine allowing for advanced procedures to be performed. The facility has a radiography ward, ultrasonography, and a CT scanner. In addition, bed space can be increased by 50 spots by expanding into the aircraft hangar.

The armament of the Feodosij Petrov-Class consists of four remotely operated (RWS) DKh-63 20mm autocannons, three batteries of the Kirilov-Hadjuk Close-In Weapons System, accomodations for up to four "Marzanna" PRVD-808 anti-ship and anti-surface missiles, a towed torpedo decoy, and the Tzesar-46 Combined Countermeasure Softkill System. The remote weapon systems dispersed across the lip of the deck allow for asymmetrical point defense, while the mission-dependent "Marzanna" PRVD-808 anti-ship missiles can serve as defense against other ships or as fire support on land-based targets.

The "Marzanna" PRVD-808 is a low-observable air, surface, and ship-launched anti-ship and land-attack missile. The missile's fuselage is made from composite materials shaped to reduce radar reflections and its subsonic speeds allow for sea-skimming flight altitudes, both of which significantly reduce the detection range of the missile and subsequently the reaction time given to the defenses to counteract the missile-- proving the missile to be a deadly system on its own while maintaining a small and adaptable size. The 400-kilogram missile can reach land and sea targets at low (sea-skimming) altitudes at up to 185 kilometers, but by following a hi-hi-low flight path the range can be greatly extended to 555 kilometers at the expense of risking long-range detection by large radar systems. The "Marzanna" flies at high subsonic speeds, often cited at 988 kilometers per hour. The guidance of the missile relies off of inertial guidance with mid-point updates via data link with launch platform until its terminal phase where it uses an imaging infrared seeker to acquire and engage the target. The onboard computer is capable of performing a series of random maneuvers to evade countermeasures and point defense while closing on its target. Once the target is impacted, the "Marzanna"'s 125-kilogram blast-fragmentation warhead detonates.

The Kirilov-Hajduk Close-In Weapon System is a point defense system that is replacing former Kirilov systems. It features a more advanced fire-control radar, a centralized coordination network, and more advanced missile systems due to the partnership with Vladislav Hajduk, another notable weapons designer for WURCo. The system is organized into "batteries"; i.e. each involving fire control equipment independent from ship operations and two autocannons and several missiles based in a turret. The basis for the CIWS, like its predecessor, is based in the turret of the 5P103 "Urs Negru" SAM system, but in contrast, has different fire control and newer missiles that fit the tubes. The fire control of the Kirilov-Hajduk consists of a Ka-band active phased array radar (range 30 km) and electro-optical sensors (range 15 km) with an approximate maximum detection range of 30 kilometers, although active engagement begins only at 15 kilometers away due to weapons range. The missiles used are Dzʹob-1252 surface-to-air missiles, which have a range of 15 kilometers and a ceiling of 14,000 meters. Using a solid-fuel rocket, the missile can reach speeds of up to Mach 3.8. The Dz'ob-1252 makes use of active MMW radar guidance, which gives the missile very high resolution for target interception. Once intercepted, a radio proximity fuse will detonate its 13-kilogram blast-fragmentation warhead. The guns, on the other hand, have a far shorter engagement range, only able to effectively fire upon targets at a range of 3,000 meters. The two 20mm autocannons have a rate of fire of 4,500 rounds a minute, and typically fire armor-piercing discarding sabot rounds with a sub-caliber tungsten penetrator. The turrets are able to be equipped with a stealth casing to improve the vessel's overall observability by covering most of the very obtuse shaping of the standard turret. Each "battery" usually includes eight missiles (though 18 more missiles stand ready in a magazine behind the turret) and 1,300 rounds of ammunition; multiple of these systems can be mounted on a naval vessel.

The Feodosij Petrov-Class is equipped with the Tzesar-46 Combined Countermeasure Softkill System (Tzesar-46, or C2S2) upon several dispersed mounts on the superstructure and on the sides of the deck. This apparatus is a naval self-defense system that connects the ships' sensors (as well as providing some of its own) to a relevant countermeasure. The C2S2 augments the systems of the Petrov-Class with electro-optical, infrared, and lightweight 2D phased arrays to detect incoming threats from advanced guided munitions and is capable of deploying the proper countermeasure. These countermeasures include the Shok and Trepet flares and chaff dispensers, Fasad-849 rocket-propelled radar decoys, two-color (near-IR and mid-IR) infrared and electro-optical dazzlers to disrupt their respective guidance systems, radar spoofing and jamming via the Pidmitaty-112 AESA radar, and a laser detector and subsequent aerosol smoke grenade launcher. This provides multiple softkill measures across a variety of possible spectrums, passively protecting the vessel from advanced guided munitions.

Carried over from the development of the Tsvetkov-Class destroyer, the Pidmitaty-112 serves as the primary air search radar of the Petrov. An L-band AESA radar, the Pidmitaty-112 can perform fully automatic target detection and track initiation, and track upwards of 1,000 targets at ranges of 400 kilometers. In addition, taking from the Harsk-Class frigate instead, the Petrov-Class uses the Ochyshchaty-347 X-band air/surface search, tracking, and fire control radar.

Ships in Class

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Kontrshpyhun-Class Intelligence Ship

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The Kontrshpyhun-Class is an intelligence-gathering vessel in service of the Czaslyudian Navy, built by WURCo., a Czaslyudian arms company. Based upon a modified civilian hull, the Kontrshpyhun serves as the primary purpose-built signals intelligence (SIGINT) vessel in the Czaslyudian Navy. From their homeports of Nova Basan, Korf, or Chornaya, the Kontrshpyhun serves under both fleet commands, as well as including personnel from the Czaslyudian Intelligence.

In February of 2022, the lead ship in the class, the Kontrshpyhun performed underwater recovery operations in the Vernyhora Sea.

Design
The Kontrshpyhun-Class is the first dedicated class of ships in the Czaslyudian Navy meant for purely signals intelligence, gathered through its various sensors. The vessel has light armament for its non-combat role, and an arsenal of electronic equipment, ranging from radars and electronic interception technologies to sonar systems. The Kontrshpyhun has facilities for the interception of electronic signals as well as their analysis and if need be, the breaking of their encryption or coding.

Save for the lead vessel, the FRCPN Obman (Ex-Kontrshpyhun), the class has a total displacement of 4,600 metric tons, a length of 106 meters, a beam of 17 meters, and a draft of 7.5 meters. The FRCPN Obman underwent modification after only ten months of service to include increased facilities for underwater operations, specifically the recovery of larger sunken equipment leading to an increase of its total length to 138 meters. The Kontrshpyhun-Class has a typical complement of 148 crew, 88 of those being sailors while the remaining 60 are technicians.

The Kontrshpyhun-Class is powered by three Vodospad DD-407 diesel engines powering a two-shaft system. This configuration allows the Kontrshpyhun to reach top speeds of 20 knots, and with the fuel stored aboard, up to 15,000 kilometers. No attempt at acoustic reduction has been made beyond environmental concerns.

The Kontrshpyhun-Class typically is protected by no more than what is carried in the personal armory of the vessel, including automatic rifles and two machine guns. It does, however, have four KPUPO-4 man-portable air defense systems, allowing it some protection from aerial attacks.

To facilitate its underwater functions, the Kontrshpyhun-Class is equipped with a Vukho Kolody PI-943 medium-frequency bow-mounted sonar, a Khvist-927 variable-depth high-frequency towed sonar, and provisions to deploy up to two manned or unmanned underwater vehicles. The Vukho Kolody PI-943 sonar system has an extremely high degree of accuracy in its active modes, making it a useful tool for mapping the seafloor, and a range of 60 kilometers. The Khvist-927 towed array can be deployed from an opening in the transom of the ship, capable of extending nearly a kilometer with its cables, and able to change depths to peek below the thermocline. The Khvist is capable of both passive and active sonar detection, although the deployment of the array would require decreasing speeds down to ~16 knots. The underwater vehicles include the Som-26 manned deep submergence vehicle and the Vau-91 ROV; both can reach test depths of 6,000 meters and are equipped with lights, LIDAR, and manipulating equipment. The Som-26 is crewed by two and can reach a top speed of 3 knots, powered by two electric propellers. The Som-26 has an endurance of 10-12 hours with its batteries.

The Kontrshpyhun-Class can also deploy SBZ-7190 Combat Submersibles and up to 4 RHIBs, though the former significantly cuts down on submergence vehicle storage. The SBZ-7190 Combat Submersible is a midget submarine used for short-range, tactical purposes. The SBZ-7190 offers over-the-horizon insertions of either Naval Infantry or special forces with ranges of 80 kilometers and a maximum depth (for travel) of 100 meters, while only 30 meters for use of the airlock (for insertion). The vehicle is piloted by two and can carry a fully equipped fireteam (seven soldiers) completely within the vehicle, improving combat readiness upon arrival due to keeping the soldiers out of the cold waters and in a dry environment for hours at a time. The vehicle has a maximum speed of 5 knots and is equipped with a simple sonar and fathometer to determine the depth and potential obstacles, as well as a UHF radio. The endurance of the SBZ-7190 is approximately a single day.

Forming a part of the Kontrshpyhun's intelligence-gathering abilities, the Vuayerist-156NB ESM array is comprised of several large, dispersed passive radio/radar receivers that can detect even minute transmissions and perform triangulation on its origin. The Vuayerist-156NB and its associated onboard equipment can feed the raw data into onboard information processing equipment. The system has an effective range of 900 kilometers.

The communications and radar equipment is composed of a Krychytʹ-103 air search electronically scanned array, Zirkohlyad MA-549 satellite detection and tracking radar, and a suite of long-distance and satellite communication equipment. All of this equipment, including several elements of the Vuayerist-156NB ESM array, are housed in radomes to protect their sensors. The Krychyt'-103 air search radar is an active electronically scanned array, providing 360^o of coverage. It can simultaneously track 42 targets at ranges of 220 kilometers. It operates in the L-band. Meanwhile, the Zirkohlyad MA-549 is a radar capable of detecting and tracking overhead satellites, with capabilities mimicking or exceeding that of the Zolotyy MA-259 anti-ballistic missile radar. However, the MA-259 is focusing on tracking satellites instead, using its expanded X-band radar to detect targets with sizes as low as 20 square meters in geosynchronous orbit. This allows the Kontrshpyhun-Class to quickly analyze the orbits of existing satellites and even help coordinate aircraft carrying anti-satellite weapons. Apart from the radars, which are usually kept off or in a passive mode in order to not interfere with the Vuayerist-156NB ESM array's operation, the Kontrshpyhun-Class has the facilities to relay immense amounts of data to nearby receivers, satellites, and more. The Kontrshpyhun-Class is also able to serve as a control center for the autonomous MO-1038 missile.

The Kontrshpyhun-Class is equipped with the Hremlin-2916 electronic attack system. The Hremlin-2916 acts as an extension of the primary radar by allowing for the jamming of communications and radar systems via barrage jamming (or transmitting across several frequencies to deny their effective use), providing another defense against anti-ship missiles by severely degrading their ability to acquire a target, at which point they will either miss or be far more easy to mislead with more rudimentary countermeasures, like chaff. The Kontrshpyhun is also equipped with the Shok and Trepet flare and chaff dispensers, for basic self-defense.

Ships in Class

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Ryasnyy-Class Fast Auxiliary Vessel

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The Ryasnyy-Class is a type of fast combined-replenishment vessel in service with the Czaslyudian Navy. The vessel is designed around a modular framework which allows the Ryasnyy series to accommodate several auxiliary functions, such as replenishment oiler, fleet supply ship, repair ship, and even submarine tender. The hulls alone of the Ryasnyy-Class went for B 210 million each, with an additional B 470 million on average for the complete product, the difference in modules causing some deviations in price.

The Ryasnyy-Class supersedes the previous Sup-Class replenishment oiler and Oliya-Class supply ships, taking in their roles and responsibilities as well as having modules for specialized submarine support. Besides fuel, crew consumables, and supplies, the Ryasnyy is the most convenient place for crew transfers to take place, ferrying fresh bread as well as muscle to distant naval formations. The Ryasnyy-Class is the ultimate auxiliary vessel of the Czaslyudian Armed Forces, and will likely see service until 2060.

Design
The Ryasnyy-Class has steel double-hull which it uses to prevent its fuel stores from leaking in case of damage to the outer hull. This becomes particularly useful in shallow waters when an unmapped obstacle may pose a danger. The Ryasnyy-Class at base has a displacement of around 21,500 tons, and when fully equipped with modules averages 30,100 tons across the different variants. Fully loaded with supplies and/or fuel, the class can reach up to 34,500 tons of displacement. The class has a length of 213.7 meters, a beam of 30.4 meters, and a draft of 10.3 meters.

The Ryasnyy uses a CODLAD (Combined Diesel-Electric and Diesel) arrangement powering two propellors in a two-shaft system. A system of four Vodospad DD-407 diesel engines powers two Yakhta EB-108 electric motors. What occurs in this setup is that the diesel engines power the electric motors in order to drive the shaft and propeller system, thus using diesel-electric power to achieve efficient operation across a variety of speeds up to cruising speed. In order to press above that, however, the EB-108 motors can be circumvented and the four DD-407 engines can directly power the propulsion allowing for higher speeds. In order to return to cruising speeds, the diesel engines merely need to be disconnected to return to powering the electric motors. This setup yields a cruising speed of 20 knots and a top speed of 26 knots. The vessel has onboard fuel stores, separate from the ones used to replenish other ships, capable of giving the large vessel a range of 27,900 kilometers. The Ryasnyy-Class can temporarily run purely off of its diesel-electric motors at lower speeds in order to reduce its sonar signature, periodically recharging the motors by running its entire system.

The vessel's hull, without any modules installed, is much alike a container ship without any cargo. It has a rectangular void in its profile from the forecastle of the bow that stretches just before the bridge superstructure. In this state, it is considerably less seaworthy. However, the base hull is almost always equipped with modules save for the rare instances when it may be taken out of drydock for equipment testing. These modules include hospital suites, fabrication facilities and workshops for fleet repairs at sea (FRaSe), conventional stores for bulk storage of supplies, and fuel storage containers and fueling facilities. Designations for the module variants and their capabilities are as follows.

• Ryasnyy-M: Supply ship. Deck facilities for withdrawal of equipment, munitions, and supplies. Unloading of supplies usually handled by the three abeam replenishment cranes when at sea, though helicopters can handle a good majority of loads. The cranes typically are used for reloading vertical launch cells or other situations when a stable platform is needed, or otherwise is a load a helicopter cannot carry. Helicopters, however, can swifly resupply vessels at a distance by lowering pallets onto their helicopter pads. Allows for reloading of vertical launch systems, resupply of fresh water, ammunition, and miscellaneous war materiel. Approximate 2,310 ton cargo capacity, or approximately 1,400 TEU.

• Ryasnyy-F: Replenishment oiler. Includes eight separate tanks for redundancy capable of transporting 14,000,000 Liters of aviation, marine fuel. Has several refueling wires for alongside connected replenishment, and can refuel two vessels at once. Though it has the capability to do so, the Ryasnyy-F does not typically carry diesel submarine fuel as all Czaslyudian patrol submarines are expected to remain close enough to shore in order to freely refuel in a safe harbor.

• Ryasnyy-R: Repair ship. Vessel includes stores of important electronics and multipurpose materials and workshops for the fabrication and application of new equipment (e.g. a repaired radar array, reinforced hull breach on a submarine)

• Ryasnyy-L: Hospital ship. Includes the most sophisticated medical facilities in the Czaslyudian Navy. Can service around 900 individuals with state-of-the-art medical facilities as well as giving onboard medical personnel enough room for triage of very large numbers of patients.

• Ryasnyy-TC: Submarine tender. Includes more or less the same facilities of the M version, except with heavy equipment on its top deck for the delicate submarine reloading process. This involves removing the top deck of the submarine at sea in order to directly insert new munitions into its torpedo room, or removing a spent or missing silo and inserting a new silo in its place, in the case of the Fyodor Sergeyev-Class.

The Ryasnyy-Class has a complement of 230, though it has a short-term swell capacity of nearly 1,000 personnel. This is because besides physical replenishment, the Ryasnyy-Class is also typically how mass crew replacements from shore arrive.

Bridge and command functions are streamlined through the Connected Bridge Functions System, which digitalizes navigation functions in order to make minute and exact changes as needed, an important quality during delicate operations like refueling at speed. Atop the bridge superstructure is the Voyenachalʹnyk-122 active electronically scanned array, performing air search and surface search functions. This radar is assisted by two side-mounted high-frequency Zvazhte-1052 scanners, which cut through water surface interference and allow accurate readings of distance between the Ryasnyy-Class and the vessel it is surfacing-- it also allows the Ryasnyy to discern the low profiles of surfaced submarines and their masts from the water surface.

The Ryasnyy-Class can carry and service a number of vertical-takeoff craft, such as helicopters, from its rear landing pad. With its telescopic hangar, it can carry two VIGH-15 utility helicopters while anchoring one on the landing pad, or two larger VI-20 with one in the hangar, one tied up outside. Though it does not maintain the ability to stow or secure the aircraft, the Ryasnyy's landing facilities allow for the VI-32 to land and offload, if only temporarily. The VIGH-15s used are typically a standard transport variant for its cargo space, though one of the three may be the VIGH-15N variant for self-protection against submarines.

Armament of the Ryasnyy-Class is light; the base armament usually consists of six CMG-28 fixed positions, with an armory including many more CN-19 rifles. For protection against air attacks, the Ryasnyy-Class maintains two KPUPO-4 MANPADS with five reloads each, and two LPO-11 laser-guided MANPADS. The Ryasnyy-Class also has provisions for the installation of one Kirilov-Hadjuk Close-In Weapon System, however, it would only be installed in tours where there would be a direct threat against the vessel.

Ships in Class

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