NationStates Jolt Archive


Beginnings of Nuclear Armament - Decurion SLBM

The Macabees
03-03-2006, 03:09
Decurion Submarine Launched Ballistic Missile

http://modernwarstudies.net/Lineart/decurion.gif

The Decurion is the Kriermada's latest submarine launched ballistic missile, entering service in 2017, along with the nation's newer class of ballistic missile carrying submarines, the Furious class SSBN, released too by 2017. It's designed for maximum range effeciency, and maximum damage capabilities, and given its size the former is one of the top priorities in the missile's design, allowing for it to be launched from as far away as possible, in case a submarine is not within strategical waters at the time of the strike. Unfortunately, the Decurion doesn't fit in the verticle launch tubes in the Cadiz class SSBN, meaning that although some of the submarines will be refitted, the Decurion's presence will be mostly made in the bowels of the Furious class, or in future designs. The missile is a three-stage design and features ten multiple independently targetable re-entry vehicles. Range is increased through an aerodynamic aerospike [not seen fully in the picture; the aerospike should slim down at the end and continue for around six feet, past the fatter aerospike that you can see in the picture], which is created out a graphite resin epoxy to avoid ablating at an uneven rate, which could cause the missile to drift in re-entry. With the aerospike the Decurion has a maximum range of 4,300 nautical miles, or 4948.35 statute miles, or 7,963.6 kilometers. In other words, the Decurion outranges the Triden II by 300 nautical miles.

All rocket motors used in the Decurion are solid propellant rockets, however, they take the advancements made in the Trident II and make them better, using more rescent studies of tensile materials, and casing technology. That said, the cases for all rocket engines in use are manufactured from a graphite epoxy with resin reinforced in titanium-aluminum matrices. A special priority was controlling the erosive properties of the case at higher thrust, which was done mostly while testing different engines direct numerical simulations. To increase the resistance to erosion any and all metalloids used in the casing are manufactured through atomization, which cool faster and thus set into a more amorphous structure, as opposed to the crystal structure. This increases the properties of the metal in question, especially titanium and aluminun which already exhibit strong resistance against heat when alloyed together - by manufacturing it in this process it only increases this heat resistance property. The first stage of the Decurion is a rocket engine used to propel the missile out of the water, and towards the outer atmosphere. This is followed by an interstage section, which is followed by a second rocket engine. Above this is the equipment and guidance technology used by the rockets, mostly made of critical computers that work with the inertial guidance and satellite guidance of the Decurion. Finally, it's capped by the payload, with each MIRV having its own independent rocket motor, with independent guidance, and a nose faring. The key difference between the first and second/third state motors is that the first uses ten symmetrically located injection valves, which use high pressure breeches to shower in the solid propellant into the combustion chamber, while the second and third engines use a supercritical fuel injection system.

Each MIRV carries a .1mt warhead and is propelled by an independent rocket motor. Each MIRV also has a series of airfoils, while the propellant buses have an array of decoys to fool anti-ballistic missile defense systems. Circular error probable is 50-90 meters

Power Plant: Three-Stage Integrated Rocket Motor
Length: 19.5m
Diameter: 1.9m
Weight: 60,000kg
Range: 4,300nm+
Guidance System: Inertial and Satellite
Warhead: 1mt, split between 10 MIRVs
Velocity: 21.5 Mach
Cost: 14 million
Production Rights: Non-existant
Spizania
03-03-2006, 18:59
OOC: Are you selling these things?