Post by Uzb3kistan on Jul 12, 2005 17:05:38 GMT -5
Seth Class SSGN
Introduction[/color]
The Navy was tired of the older versions of the SSGN submarines. Many were just simply out-dated; some were too slow, equipment was hard to integrate into the older style hulls, and some just did not have the ability to fire the newest missiles. The Navy was obviously in need of a new SSGN; the Shaitan Corporation, therefore, built the new Seth Class SSGN. With the newest technologies integrated into the new submarine, the Naval commanders can now get what they were longing for. All new weaponry systems, electronics systems, propulsion systems, and design features are in the Seth Class.
Design[/color]
The design of the Seth Class keeps to the Navy's role of indigenous designs, but also can almost be described as an over grown Ohio Class. The Seth Class has a length of 402 feet, and a beam of 58 feet, with a submerged displacement (long tons) of 9,100. The Seth Class has been designed with long-term technological innovation in mind. The Seth Class is designed to be very flexible and universal. This allows for technological insertion and innovation in the future, without having to redesign the hull and consequently designing a new submarine. The "teardrop" design of the hull and new sail shape gives it a hydrodynamic quality which, not only gives the submarine the ability to cut through the waters quicker, but to give the submarine a larger depth and avoiding pressure by allowing the water to disperse around the hull easier.
The Seth Class has a double hull made out of Titanium , giving the Submarine a high mass efficiency, a high strength-to-weight ratio, and a lighter weight. Although expensive, the costs are made up with the lower maintenance costs. The Titanium frame also protects the submarine from certain dangers that haunted previous crews. Such as the crushing of the hull due to pressure depth. The Titanium allows the submarine to go deeper than ever before, and it can even hold up to some older torpedoes, like the Mk 48 ADCAP torpedoes. The hull of the ship is made of Shaitan Corporation designed special advanced polymer matrix composite materials, or advanced PMCs. Giving it an even higher strength and protection against outside aggression. The composite materials are then reinforced by extra layers of titanium, depleted uranium, and anechoic materials to add extra strength and stealth to the hull; and an active degaussing system to help prevent MAD detection. The Seth Class also features two photonic masts, to replace the traditional periscope, by it's arrays of high-resolution cameras that send the visual images to flat-panel displays in the control room.
Propulsion[/color]
The Seth Class is powered by two Pebble Bed Nuclear Reactors, that in the total system come together in a hybrid of propulsor features, with the Shaitan Corporation designed Advanced Shaftless Propulsion System (ASPS), and Electric Integration. With the ASPS, the submarine can overcome selected technological barriers that have a significant impact on a submarine's infrastructure and cost. The ASPS features a shaftless propulsor that eliminates the need for a traditional shaft that penetrates the submarine's pressure hull. This revolutionary change in submarine design will dramatically reduce the ship's weight, size and cost, freeing up critical space for mission payloads. The system provides advanced, permanent magnet motor (PMM) and electric drive technologies, which will allow the Uzb3kistan Navy to realize its vision of affordable, integrated power systems on board warships. This solution provides proven, best-value technology that is lighter, smaller and more power-dense than any other previous Naval electric drive available. The new system utilizes a common ship power system architecture that can transfer electric power from propulsion and ship service systems to advanced electric weapons, sensors and countermeasures. The integrated power systems equipment will provide increased fuel efficiency, reliability and commonality benefits in electric ship architecture, which provides, stealthier hull forms, reduced reliability on logistics, "plug-and-play" maintainability, larger payload and mission capacity, and reduced crew sizes. The system also features many more Auxiliary Maneuvering Units, which are small propulsors at the bow and stern of the nuclear submarine, used to greatly enhance the vessel’s maneuverability.
Electronics - Sensors and Countermeasures
The electronics systems is a vital to a submarine's success. Making sure the Seth Class had electronics up to par, or even better than some of the leading Naval powers in the world was one of the Shaitan Corporation's biggest priorities. When it comes to detection systems in Naval Warfare, it's vital who can detect another first, and farther away. It was in the Shaitan Corporation's best interest, therefore, to design and develop detection systems that will see the enemy, long before the enemy sees you. Also, the Shaitan Corporation understands the importance of Countermeasures in submarine warfare, because once that torpedo is in the water and is heading toward the Seth Class SSGN, the SSGN needs to have the right equipment to either eliminate that threat, throw it off, or escape it.
The Osiris is equipped with a TB-29 submarine thin-line towed array, and a Shaitan Corporation designed AN/SQR-74E Tactical Towed Array SONAR (TACTAS). The TB-29 submarine thin-line towed array is a Commercial Off-The-Shelf version of the legacy TB-29 towed array. Compared with the legacy array, the TB-29 uses COTS telemetry to significantly reduce the unit cost while maintaining equivalent array performance. The TB-29 is longer than the thin-line TB-23 and has a sensor location system. The AN/SQR-74 Tactical Towed Array SONAR is the next step up from the AN/SQR-19 Tactical Towed Array SONAR. It now features three separate parallel lines, which are over a miles, in which the individual hydrophones use fiber optic coils and lasers. Tiny changes in the behavior of the laser light will result when the coils are influenced by sound waves in the surrounding ocean. Analysis of such data promises to greatly increase the sensitivity of the array to the presence of enemy submarines and other targets. The new system provides a 310nm range of detection.
The Seth Class is also equipped with other systems which are linked to supercomputers designed for recognition, targeting, and RADAR/LIDAR enhancement, etc,etc. Equipped, is the Shaitan Corporation developed AN/UQQ-7 bow-mounted spherical array sonar acoustic system, which has a range of about 63nm. Also equipped is the newly Shaitan Corporation designed SC/LUR-16E modern hull-mounted sonar that gives the SSHBN a full 172nm. The SC/LCL-9 LIDAR gives the Seth Class Submarine the ability to actively search, and do it silently. The SC/PGS-16 is currently the primary Surface Search Radar for the Submarine fleets, giving them a search capability of about 330 miles on perfect environment conditions.
The Countermeasure electronics on the Seth Class have proved to be up to par with the leading Naval technologies around the globe. The Seth Class Submarine is equipped with 6 decoy tubes. The tubes fire FCD-1 "Brilliant" Decoys, which is intended to conspicuously mimic the maneuvering and noise signature of the parent sub. The purpose is to draw an enemy's attention away from the parent sub, allowing the parent sub to sneak away from the battle area undetected, or to escape enemy torpedoes because those torpedoes will be lured toward the decoy. The decoy contains a propulsion system and fuel supply like a regular torpedo. But the decoy is unarmed, and the space available because there is no explosive warhead is used instead for additional computers and sonar emitters. This gives the decoy the ability to be programmed -- before launching -- with complex instructions regarding how to behave regarding changes in depth, course, speed, etc., and also to give off appropriate noises like a real full-sized submarine. The decoy might be programmed to act like a different class of sub than the parent, to further confuse and distract the enemy. The term "brilliant" refers to an advanced state of on-board artificial intelligence routines that allows the decoy to make autonomous real-time decisions once launched that further aid the tactical goals of its parent sub during combat or intelligence-gathering missions.
However, like anything, the decoy system isn't failsafe. Therefore the Navy doesn't like to rely on one system for defense against an incoming torpedo. Thus, the Shaitan Corporation responded with the design of a new "Active out-of-phase emission" system. The SH/MEI-05 is the newest implemented technology in the Navy. What Active out-of-phase emission, and this system, does is weaken the echo which an enemy sonar receives from a submarine’s hull, by actively emitting sound waves of the same frequency as the ping but exactly out of phase. The out-of-phase sound waves mix with and cancel those of the echoing ping. This increases the submarine's stealth technology and less likeliness of a direct hit with a torpedo. However, say the enemy submarine already has a good firing solution and drops torpedoes heading toward your submarine? No problem; this worry by the Naval Forces was heard by the Shaitan Corporation scientists when they developed the SH/MEI-05A, an advanced version of the SH/MEI-05 that not only the Active out-of-phase emission on enemy submarines, but takes it a step farther with incoming torpedoes and other inbounds. Using the same technology, only more advanced; it actively emits back to the incoming torpedo to make the Submarine seem, to the inbound, that it is in a different location, and therefore causing the inbound to miss it's target by overshooting or undershooting and detonating prematurely. There are also more systems mounted in the Osiris that help prevent possible enemy torpedo collision. The Seth has a total of six deployable ATDS guns; which are an underwater "anti-torpedo artillery" system, which shoots rapidly at inbounds, and is guided by SONAR and LIDAR. Mounted on the submarine are six smaller 8 inch torpedo tubes, designed to launch Shaitan Corporation designed countertorpdeos, that target incoming enemy torpedoes.
Armament
With the new Shaftless Propulsion System (ASPS), freeing up a lot of critical space for mission payloads, much more weaponry can be stored on the Seth Class. The Seth Class safely holds 400 weapons, including anywhere from torpedoes, Vertical Launch weapons, mines, small anti-torpedoes, etc. The Seth Class has six forward 21 inch torpedo tubes,capable of launching any torpedoes of the UT series, or of similar size. The Osiris Class Submarine features a 186 tube VLS system, designed to launch any of the Uzb3kistan VLS rated missiles. As well as four Heavy VLS tubes, capable of launching heavyweight anti-shiping missiles, or ballistic missiles. The Seth houses three deployable unmanned mini-submarines for both combat and reconnaissance missions. Also deployable are four Advanced Delivery System mini-submarines that are new battery-powered mini-submarines for the transport of special forces from a parent nuclear submarine to the forward operational area and back, within a warm and dry shirtsleeves environment. Also, although unintentional, they can be used as 'escape pods' if the unfortunate were to occur; however, there's a very small chance that anyone may be deployed before the parent submarine is destroyed, as it takes time to man and deploy it (more information on the technology post about the system).
Propulsion: Two Pebble Bed Nuclear Reactors with Advanced Shaftless Propulsion System (ASPS), and Electric Integration.
Displacement: 9,100 tons submerged
Length: 422 feet
Beam: 78 feet
Crush Depth: 4km
Armament: 6 21in torpedo tubes, mining system, 6 ATDS guns, 6 counter-torpedo 8in. tubes, 184 VLS tubes, 4 1000mm VLS tubes, 3 deployable unmanned mini-submarines
Special Warfare: 10 deployable Advanced Delivery System mini-submarines
Countermeasures: 6 FCD-1 "Brilliant" Decoy tubes, SH/MEI-05 and SH/MEI-05A systems, ATDS guns, and counter-torpedoes
Detection Systems: TB-29 submarine thin-line towed array, AN/SQR-74 Tactical Towed Array SONAR, AN/UQQ-7 bow-mounted spherical array sonar, SC/LUR-16 modern hull-mounted sonar, SC/LCL-9 LIDAR, and SC/PGS-16 Surface Search Radar
Crew: 120 officers and men/women, 50 Special Forces men/women (optional)