U.S. SSGN-21 Kraken class Cruise Missile Submarine:
Originally, the United States Navy planned to start replacing Ohio class Ballistic Missile Submarines starting around Twenty-Thirty. Various treaties were signed however and only a small number of old Ohio class submarines were retained as a result. It is incredible how long the Ohio class ended up remaining in service, not retired until replaced by the even larger Francis Scott Key class.
Design work had already been virtually complete on the replacement design. It was smaller than the Ohio class and mounted sixteen ballistic missile tubes instead of twenty-four. It was decided to adapt the design to a cruise missile submarine in a similar manner as the older Ohio class had been several decades before. Seven cruise missiles could be fitted in place of a single ballistic missile. One advantage of producing the design is that if events changed, production had already started and could be converted to Ballistic Missile Submarines.
At first it was planned for only four of these boats to be built to replace the four retiring Ohio class. Later, two addition boats were ordered which was later increase to four additional boats for a total of eight boats. The first of the class was laid down around the same time as the Tigershark but that class continue to be built even when the more advance Swordfish class entered construction. The Kraken shares many systems with the Tigershark class submarines.
With heating up of the new Cold War, production was finally restarted on Ballistic Missile Submarines. There was some consideration given towards develop a cruise missile submarine using the Ballistic Missile Submarine design but the coming of the Rifts prevented any design work. Still, there was some who argued that the Francis Scott Key class simply were too large for this role. If the world had not been destroyed in an apocalypse, the Kraken class might have been retired around 2120.
When the world was wrecked by magical energies, the surface navies of the world were almost annihilated. Under the oceans, submarines survived far better than surface vessels. Half of the Kraken class submarines survived to join back up with the New Navy. Out of the four, one was lost and three still remain in service with the New Navy.
The Kraken shares the same reactor as the Tigershark class but due to being slightly larger, the cruise missile submarine is slightly slower. Top speed underwater is around thirty two knots compared to around thirty-six knots. Displacement was around sixteen thousand tons when submerged, making it only slightly smaller than the Ohio class. The boats featured additional automation over the old Ohio class which enabled them to be operated by a smaller crew. As with all submarines, the Kraken class is still quite cramped. A small number of special forces troops can be carried although rarely carried in United States Navy service.
The sail is more streamlined than that of older submarines and looks similar to the sail carried on some Russian designs. This sail was first introduced in the Tigershark class. Because these boats were made from the high strength alloys and composites, they were virtually immune to corrosion. They are not quite as quiet as some later designs but the design was more quiet than the Ohio class that they were developed to replace. The vessel features a rubber coating to defeat sonar as well as a pump jet instead of a propellor. The towed array and hull sonar are identical to those carried on the Tigershark class.
In addition to carrying over one hundred cruise missiles, these submarines have four torpedo tubes in the bow section with twenty-four torpedoes normally carried. Additional missiles and mines can also be carried but are rarely. More often, rocket propelled torpedoes might be carried although only a handful are usually carried. These boats have a single retractable laser turret in front of the sail. Originally the laser was developed for the Tigershark class. For additional protection against torpedoes, the submarine both carries both noise makers and special decoys.
[Authors Note: While Rifts: Underseas indicates that the New Navy operates only the USS Ticonderoga, Trident class Submersible Carriers, and Stingray and Sea Dragon class submarines, this writeup (and other new Navy Submarine designs) is designed to give the New Navy a larger variety of submarine classes.]
Model Type: SSGN-21 Class
Class: Cruise Missile Submarine
Crew: 135 total; 12 officers, 12 chief petty officer, 111 enlisted.
Robots, Power Armors, and Vehicles:
M.D.C. by Location:
|Torpedo Tubes (4 - Sides of submarine):||100 each|
|Vertical Cruise Missile Launchers (16, Behind Sail of Submarine):||150 each|
|Retractable Laser Cannon Turret (1, Bow):||200|
| Bow Planes (2):||200 each|
| Pump Jet Propulsor (1):||400|
| Main Body:||3,000|
 Destroying the submarines bow planes will reduce the submarine's ability to change depths but will not eliminate it. It also makes it difficult for the submarine's crew to control the submarine giving a penalty of -25% to all piloting rolls.
 Destroying the submarine's Pump Jet Propulsor causes serious problem. The submarine will no longer be able to use forward momentum and the bow planes to keep the submarine level. It is recommended that ballast takes are immediately blown so submarine comes to surface.
 Depleting the M.D.C. of the main body destroys the submarine's structural integrity, causing it to sink. If the submarine is underwater, the entire crew will die unless protected by environmental armors that can withstand the pressure that the submarine is under. If on the surface, there are enough flotation devices and inflatable life rafts to accommodate everyone aboard.
Surface: 28.8 mph (25 knots/ 46.3 kph)
Underwater: 36.8 mph (32 knots /59.3 kph)
Maximum Depth: 5,000 feet (1,524 meters)
Range: Effectively Unlimited due to fusion engines (needs to refuel every 20 years and requires maintenance as well). Ship carries eight months of supplies on board.
Height: 54.5 feet (16.61 meters) not including periscopes and antenna
Width: 44 feet (13.41 meters)
Length: 485 feet (147.83 meters)
Displacement: 14,200 tons standard and 15,600 tons submerged
Cargo: Submarine is very cramped, 20 tons (18.14 metric tons) of nonessential equipment and supplies. Each enlisted crew member has a small locker for personal items and uniforms. Ships officers have more space for personal items. Most of the ship’s spaces are taken up by extra torpedoes, weapons, and engines.
Power System: Nuclear; average energy life of 20 years. Normally refuels every 10 years
Black Market Price: Not for sale; many nations and organizations would pay hundreds of millions to billion of credits for a new and undamaged Kraken class Submarine.
- Laser Cannon Turrets (1): This cannon is mounted in front of the main sail and fully retractable under concealing deck plates so that they do not disrupt water flow at high speeds and are useful both underwater and on the surface. The weapon system is used mainly as close defense and against aircraft when on the surface.
- Four (4) Heavy Torpedo Tubes: On the sides of the submarine are four torpedo tubes. Tubes are 21 inches (533 mm) wide and torpedoes can be used against both surface ships and submarines. For warheads, heavy torpedoes should be treated as having long range missile warheads. Along with standard torpedoes, the launcher can also fire missiles (long or cruise) in special canisters and rocket boosted ASW torpedoes. Submarine carries 20 reloads for torpedoes (in addition to four torpedoes in the tubes) and can carry up to 48 mines in place of torpedoes. Mines and missiles are rarely carried.
- Sixteen (16) Vertical Launch Cruise Missile Launchers: Mounted behind the main sail of the submarine, the Kraken class has sixteen cruise missile tubes which each with seven missiles per tube. Replace ballistic missile launchers in the original design. Missiles are launched in special canisters that enable the missiles to be used in depths down to 300 feet. Most missiles normally carried are fusion (Also smart missiles). The launchers were originally designed to carry Tomahawk missiles but were modified to fire all standard cruise range missiles.
- Advanced Decoys (8): The submarine carries eight advance decoys drones. They are a small automated vehicles that creates a false sonar image designed to mimic the submarines sonar signature. It has a small propulsion system that can simulate movement (has a top speed of 10 knots) and maneuvers. If decoys are not destroyed, they can be recovered and repaired. Rifts Earth decoy systems are assumed to not operate against Phase World weapons due to technological difference.
- Noisemakers: The submarine carries noisemakers to decoy torpedoes. These noisemakers are similar to those used by Coalition submarines. The noisemakers are launched from the middle of the submarine.
Maximum Effective Range: In Atmosphere: 2 miles (3.2 km) Under Water: 1 mile (1.6 km)
Mega Damage: Cannon inflicts 2D4x10 M.D.C.
Rate of fire: 4 Times per melee.
Payload: Effectively Unlimited.
Maximum Effective Range: 40 miles (64 km)
Mega Damage: By Heavy torpedo warhead type (See revised Rifts torpedoes for details), can fire missiles (Long Range or Cruise) in special canisters as well (See revised bomb and missile tables for details.)
Rate of fire: One at a time or in volleys of 2, 3, or 4. Reloading takes 1 full melee
Payload: 4 Total (Has 24 torpedoes total)
Maximum Effective Range: As per cruise missile type (See revised bomb and missile tables for details.)
Mega Damage: As per cruise missile type (See revised bomb and missile tables for details.)
Rate of fire: One at a time or in volleys of two (2), four (4), eight (8), or sixteen (16) missiles and can be fired at multiple target at the same time.
Payload: Each launcher houses 7 missiles for 112 cruise missiles total. Submarine carries no reloads
Effects: The decoy has an 80% chance of fooling ordinary non military sonars and non smart guided torpedoes, the decoy has a 50% chance of fooling military level sonars (like those of the Coalition), and the decoy has a 25% chance of fooling advanced military sonars (Like those of the New Navy and Triax) and smart torpedoes.
Decoys have a duration of 30 minutes (120 melee rounds)
Range: Not Applicable
Rate of fire: Ship can launch one drone per melee.
Payload: 8 Decoys
Effect: 50% of decoying normal torpedoes and 20% of decoying smart torpedoes.
Rate of Fire: 2 at a time (Can be reloaded in one melee)
Payload: 20 Noisemakers,
The submarine has all systems standard on a robot vehicle plus the following special features:
- Advanced Hull Sonar System: Range of 60 miles (52.1 nautical miles / 96.6 km). This hull sonar system has both a passive and active system built in. Sonar system can track up to 24 targets at one time and has a +10% to read sensor and weapon system skill rolls. Sonar also has built in communication system and sound pulse system to detect obstacles, objects, vessels and fish (schools and large animals), as well as measure distances and depth.
- Advanced Towed Array Sonar: The system is basically a long and very sensitive sonar system carried behind the submarine on a long cable. Range of 200 miles (173.7 nautical miles / 321.9 km). This is an incredibly sensitive and is as powerful as the special purpose pre-rifts SURTASS system. This towed array sonar system has both a passive and active system built in. Sonar system can track up to 48 targets at one time.
- ESM: This system is mounted in mounted in the superstructure and is extended in a similar manner to a periscope. The antenna is very hard to detect both visually and by radar. Can detect another radar system at 125% of the range of the transmitting radar.
- Quieted propulsion and Anechoic Coating: The ship is designed with a very quiet pump jet propulsor design, the submarine's reactors make very little noise, and the boat is coated by a sonar defeating rubber coating. The submarine is -40% to detect when traveling at less that 20 knots and is at -20% to detect when traveling at greater than that speed.
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Writeup by Kitsune (E-Mail Kitsune).
Copyright © 2011, Kitsune. All rights reserved.