Introduction

<div" class="plainlinksneverexpand">

The ST-39K1 Main Battle Tank from Dat' Pizdy Arms Corporation

The ST-39K1 Mekhev represents an improvement found from enhanced electronics, armor, and armament over the ST-37K design. The actual ST-39K1 design, as represented here, is solely an export model with the plethora of options and availabilities representing not what the tank actually carries but what it can carry, and also represents the basis of being a highly modifiable platform capable of being specialized by the nation which uses it. The variant found in Armed Republic service, carrying not an ST- designation but an O(x) designation, is far different than the model offered for export and carries its own specialized nature fitted to the type of warfare the Armed Republic specializes in.

[Note- ST-37K1 is absolute original; ST-37K2 is Base Package; ST-37K3 is a concept design; ST-37K4 is with enhanced armor; ST-37K7 now referred to as ST-39K1 is with K7AEUS and armor upgrades]

Internal Design

Although the ST-39K1 [ASP] is an all-new design, it still retains some features of the previous ST-29K [and ST-29K2] next generation tank, primarily its attack helicopter-style cockpit. The decision to remain with the current system was primarily a choice of crew defense and tank resilience, defeating the proposal for an unmanned turret [which would leave all crewman in one area, and with the current technology, the ST-39K1 can operate with the commander as the tank driver]. Dat' Pizdy engineers finalized the design as an advanced helicopter-style cockpit, with the two turret crewmen [commander and gunner] sitting in a tandem position, the gunner forward of the commander but below, and the commander immersed in a field of LCD screens providing data not shown through his direct neural interface. The commander has access to all aspects of the tank's function, and can even pilot the tank in the event of the death of the driver, meaning increased vehicle resilience. The gunner is given fire control and targetting systems and operates the General Armor AI System, which assists him in operating the armaments of the tank [pre-programs targets for the computer to engage utilizing the tank's armament].

The driver, instead of his former position in the very front with his own periscope systems, is now located farther aft, in the center of the body of the tank, encapsulated in monitors providing a real-time view of the terrain outside in three modes: electro-optical [cameras; at night it is night vision]; thermal/infrared; and three-dimensional composite [uses data from the targetting computer to give a view outside using LADAR/LIDAR, infrared, millimetric radar, etc. networked together]. The drive system is a drive by light [fibre optic] yet maintains an emergency mechanical linkage to the drive train.

The engine and most drive components are located to the rear of the turret assembly, with most of the batteries and electrical motor components positioned under the turret and surrounding the driver, providing additional protection. However, if a direct hit in the front of the tank kills the driver and the forward four electric motors, the tank can still operate and drive nearly normally with the commander operating the drive control systems and the rear electric motors providing the power. Electricity saving systems store unused power for peak use.

The interior is designed to defeat fires, with a halon immediate fire extinguishing system. The crew compartments are liquid cooled to keep the areas cool [due to high temperatures created from computer systems]. All tank ammunition is in an armored storage box, as is the entire main gun system (since its seperate from the crew compartment).

The ST-39K2 Base Platform utilizes a slightly different internal design, although most aspects of the K1 ASP still survive in the K2 variant. One of those that remains is the cockpit formation for the gunner and commander, however, in place of the auto-loader is a human-loader, which ensures greater resilience in tank design and allows for the tank to continue to operate effectively had the autoloader malfunctioned or been disabled. The driver is located forward of his current position and given back-up periscope vision systems tied in with thermal imagers/low-light optics to ensure the operability of the tank at night or in low-light conditions, including dense fog or smoke.

Powerplant and Propulsion

The ST-39K1's primary powerplant is an improved hybrid power plant to provide propulsion and power to its vast amount of systems. Initially, a heavily upgraded MVE-1600-EXA3 1600 horsepower twin turbocharged diesel engine provides general power [and operates an electrical generator], however, it is assisted by the electric assist system [EAS] which is a hybrid fuel cell/battery system. The hydrogen fuel cells recharge the batteries (or directly assist the engine) and the batteries store the energy as well as assist the engine. The batteries are also recharged using a series of electric generators attached to the non-driving roadwheels, as the wheel spins from movement, the generator produces electrical energy, either feeding the motors or storing it in the battery system.

An interesting note of the engine is its ability, courtesy of computers and advanced electronics, to shut down portions of the engine to save on fuel, such as in cruise/highway mode where taxing the engine will not occur at a constant, smooth speed. When this occurs, a number of the cylinders actually disengage, saving heavily on fuel. This 'Power On-Demand' feature allows for greater fuel economy, less maintenance [especially since the cylinders which are disengaged are cycled], and increases engine life span. After the cylinders are disengaged, and the tank happens to, say, head off-road and into mud where the engine is taxed, the cylinders re-engage and the engine's full amount of power is reverted to the tank. In the event of a system failure, the tank can still operate, but with a reduced number of cylinders, meaning less over-all power but the tank can still function relatively normally, albeit at a reduced pace and performance.

The primary drive train is an electrically fired hydrostatic transmission system utilizing electrically operated pumps to regulate hydrualic flow to the hydrostatic transmission. This allows the ST-39K1 a smooth acceleration, smooth deceleration, and infinitely variable speed. An emergency mechanical linkage with forward gears and two reverse provides improved traction and power/performance for situation when the electrical system is overcome or fails. Due to the nature of the drive system, it is very fuel efficient [as there is no direct load on the engine]. Another positive of this system is the fact that the diesel engine can shut down and the tank can operate fully on battery and generator power, meaning the tank is completely silent.

The ST-39K1 is capable of reaching a top road speed of roughly forty-five miles per hour [45 MPH] and an off-road speed of roughly thirty-two miles per hour [32 MPH].

For the suspension, the ST-39K1 utilizes a brand new magneto- rheological fluid (MR) semi-active suspension system to completely revolutionize the undercarriage of the vehicle. This suspension system provides for an ultra-smooth ride over any obstacle, depression, or obstruction. Also, due to the new system, roadwheel, electric motor, mechanical drive gear, generator, and axle life and efficiency are all greatly increased courtesy of the MR suspension system's unique operation. This allows for a much more rapid engagement of target, less wear on tank components, reduced noise (less movement), not as much potential injury to crew members (due to jostling or bumping), and a much more safer environment. The system is augmented by conventional hydraulic shock absorber suspension to provide added stability and resilience.

Armor - K1A1 Armor Upgrade

As Dat' Pizdy Arms Corporation engineers, with government supervisors and members of the Advanced Armor Works team, sought tirelessly to improve the ST-39K1 by reducing its dependency on elaborate engineering, high cost, and high maintenance needs, they began their quest with the exterior of the vehicle, looking at its armor to make sure it was the best in all aspects that it could be, from weight to cost to protection and so on. The armor scheme used on the ST-39K1 was comparitively cheap when compared to other vehicles, as it utilized no advanced composites, no depleted uranium [which stemmed from a fear of the use of neutron weapons, DU would magnify the radition so the crew would be effectively microwaved; this stems from the use of neutron weapons in the Belem War, which has since played a massive role in defining Soviet Bloc vehicle design and production], and no advanced construction techniques, aside from the plasma immersion, which itself is not expensive to the point which requires replacement. However, the armor was heavy due to the literally tons of ceramics crammed into the vehicle to protect it from chemical and kinetic projectiles. This was the vehicle's weakpoint, its weight. The ST-39K1, although measures had been taken to lighten her, was still a heavy-weight and its mobility, although not impaired, could come into question in tricky situations, including light bridges, excessively soft ground [it had enough power to slog through places where even four wheel drives feared to tred], etc.

The first thing the team did was contract with the National University of the Sciences in Rostov who set to work to create a new armor laminate to replace most of the ceramics in the armor scheme. The result of their research was the AAL-02 Advanced Armor Laminate - Series 2 composed of two lightweight metals. The scientists and engineers alternated layers of aluminum and titanium alloy foils, and compressed and heated them in an inexpensive energy-conserving process. The resulting reaction generated a laminate with two layers: a hard ceramic-like “intermetallic” layer of titanium aluminide, and a pliable layer of residual titanium alloy. The layers can be stacked like 1-millimeter-thick pages of a book, and even contoured into desired shapes prior to heating. The weight savings were astonishing and the laminate proved to provide slightly more defense as the entire set of ceramics within the armor scheme. The stage was set and the laminate found its way into the armor, taking up an area behind a dense initial protection layer of ceramics.

Next, to save on cost, the team scrapped the honeycombed titanium layers from the armor, replacing with a denser packed aluminum set which would aid in kinetic energy absorption, spreading the forces evenly amongst the following ceramic [and laminate] layer. The projectile would then, with less energy, impact the ceramics and finally the laminate, losing all of its energy. Any splinters would be caught by the remaining armor set [which includes steel, aluminum, ceramics, etc.] and spall layer behind. After this, the team examined the fluidic energy conversion armor, eventually deciding the system was too heavy and too costly to counter-act any gains in kinetic energy defense, especially with the addition of thenew armor. It was subsequently scrapped from the K1A1 EA package except for the turret set.

The final variant of the entire system was now ready, and began to replace the previous armor schemes on chosen tanks while being placed on all new frames...

The initial layer is the newly developed AERA-III, a Dynamic Explosive Reactive Armor [DERA], providing exceptional defense against both kinetic and other types of warheads. Operating much like a conventional ERA block, the block face is instead a thickened plate [at a twenty-five degree angle in relation to the armor face], with the explosive propellant positioned behind it and around its edges. With a patterned and directed detonation procedure, the explosive ring around the outside detonates first, operating like conventional ERA and blasting a HEAT shell's jet with a jet of its own as well as potentially throwing it or a kinetic kill vehicle off course enough to where its damage is minimal or it is subjected to further DERA reactions, then the primary charge ignites, propelling the plate into whatever projectile is incoming, either deflecting the projectile [especially since the plate is at an angle], disfiguring it, or altering its flight path with the second plate [back-plate] rebounding off the armor and into the remnants of the projectile. This is further enhanced by a twin-layer system, two layers of DERA possible due to the plate protecting the majority of propellant. The layers are found on all exposed surfaces [except rear main body] including the turret roof [and auxiliary turret roof]. [Can be removed for infantry operations, or disabled]

The secondary layer begins after the AERA-III. The initial layer of the conventional armor is composed of a spaced gap system to effectively neatralize any HEAT rounds that penetrate the defense systems. Beyond this is a kevlar infused layer of ceramics designed to absorb and spread the kinetic energy of a kinetic kill round [the crushing of the ceramics allows for the dissipation of kinetic energy] as well as produce the jet of dust to slow down incoming HEAT jets. This is further enhanced by a layer composed of a slanted compacted aluminum honeycomb layer [which gives it incredible kinetic energy absorbant powers by spreading it across the ceramic armor; located forward of the ceramics]. Behind this is metal laminate with two layers: a hard ceramic-like “intermetallic” layer of titanium aluminide, and a pliable layer of residual titanium alloy which provide awesome kinetic energy defense. A final thick layer of boronated plastics and carbon elements protect the crew from radiation. This 'Standard Armor' layer is further supplemented by the Fused Interlock Armor System [FIAS] which are blocks of armor interlocked with another block to form a configuration like that of a brick wall. These blocks are of a heavy blended metal design with ceramic inserts, strengthened with fibers to prevent shattering and coated in a hard substance. The system is encased in an area which allows some movement, allowing for the system to actually absorb and dissipate kenetic energy across a wider area and softening any blows for the tertiary layer to absorb. All ceramics are surrounded in plasma immersion ion implanted metal armor, where the plates of armor are immersed in a high-temperature, high-magnetic field plasma field [within containment equipment]. The magnetic fields drive the energetic plasma ions into the metal creating a very hard outer layer. All steel surfaces are plasma immersed.

Imbedded within the turret face and sides are aluminum, plasma ion-hardened tanks roughly an inch in thickness that contains electrolytic fluid [which changes viscosity when hit with electricity]. When a round is detected moving towards the vehicle, an electronic firing system fires an electrical pulse into the electrodes protruding into the fluid across each individual tank [each tank is a series of tanks to ensure that the entire system isn't rendered useless after one round]. This means, that when a round impacts and penetrates the armor before it, it will hit the gel-like liquid and then it will harden/thicken and spread the energy across the tank reducing the round's effectiveness. To prevent spillage and entire-system-destruction, each tank is cordoned off by seperators to prevent one hit from draining and destroying the entire system. The entire system, designated the Liquid-Based Passive Defense System [LBPDS] or Electrolytic Fluid Defense System [EFDS], protects the vehicle from both kinetic kill weapons, HEAT jets, and other weapons including shrapnel. The tanks are located on the turret face, turret sides, and turret roof.

The final layer is a tank-wide anti-spalling layer composed of light weight fibers and metal to prevent damage from fragments to the crew and internal components.

The K1A1 Enhanced Armor Package is available, free of charge, to any nation which has purchased the ST-39K1. It does not have to be utilized, and we still offer the original armor suite.

Close-In Defense and Active Countermeasures

To further enhance its defense against all threats, the ST-39K1 utilizes the Close-In Defense and Active Countermeasures Suite, composed of a number of systems intertwined to provide the tank with a level of active defense unrivaled on the battlefield of today.

The first system is the Advanced Airborne Threat Defense System (AATDS) which is a series of three weapons mounts, one to the rear of the turret and the other two mounted in recessed portions of the forward area of the turret. Each AATDS turret is composed of a bank of three 'armored centrifuges' (the armor is light and basically only protects against shrapnel or ricocheting rounds). These three centrifuges are located on 360 degree traversing turntable with three hydraulic actuators which allow the three 'centrifuges' to move up or down a number of degrees. The first centrifuge covers an area from -15 degrees to +30; the second centrifuge covers from +20 to +80; the third covers from +60 to +120 degrees. This allows for each system to engage ground level targets, line of sight missiles, and top-attack missiles. Each turret is faced to allow for full overlapping and defensive abilities. Each AATDS 'centrifuge gun' is a centrifuge, although it fires conventional rounds in an arc pattern (since it spins it releases the rounds to cover an arc of space) at incredibly high rates of fire (up to 120,000 rpm). The projectiles used are the 6.5mm ball ammunition used by conventional infantry forces. No propellant is needed but the ammunition fired is capable of velocities as high as 8000 feet per second, and are fired so close together that they are only 1/32nd of an inch apart, meaning complete and utter target saturation. Employed as a close in defense system, this system is incredibly effective. The AATDS can also be used against infantry and is tied into the 'Active Engagement Suite', which is a series of systems designed to actively engage opposing forces that have fired on the tank (i.e. ATGM crews). Each AATDS turret has its own thermal imager, however all weapons systems are tied into the 'Integral Fire Control Suite' which is a series of threat detection systems and fire control systems such as thermal imagers, electro-optical, millimetric radar receivers and emitters, light detection and randing (LIDAR), laser detection and ranging (LADAR), and low-light optics. These systems are not employed on the ST-39K2 Base Package tank.

In addition to this, it also has the Launch Point Suppression System [LPSS], which makes use of all auxilary weaponry systems (commanders weapon, gunners weapon, any other weapons, unless in use by crew) to rapidly engage ATGM crews. It uses the same systems used by the AATDS to detect the missile, but instead of firing at the missile, it calculates the point of origin of the launch, and quickly lays down suppressive fire on that area. This is especially effective against wire guided weapons or remotely guided weapons [which require the crew to keep the missile on target], and lessens the chance of another weapon being fired. The system can be disabled.

The final active defense system is the ARENA Mk. III. This system uses a mini-turreted microwave emitter as its active missile defense system to effectively disable missiles en route to the vehicle at ranges of hundreds of feet, likely causing it to detonate prematurely or crash. The ARENA Mk. III's roots lie in the aircraft mounted AFR/SIRR microwave emission system, both share a heavy parts commonality, meaning a high concetration of available parts. This system is not employed on the ST-39K2 Base Package tank.

Active Anti-Sensor System

The ST-39K1 utilizes something which promises to revolutionize the modern battlefield, the ATAQ/M-7A Active Anti-Sensor System. With the ATAQ system, no longer is anti-sensor system a passive chore, done with electronics, instead it is elevated to a manual level. When an enemy tank is detected, its range, heading, speed, etc. determined, and if the commander or gunner decides to, an 81mm mortar tube mounted in the rear flank of the tank positions itself (as it is in a semi-moveable pod) and fires a 'double-tap' of two 81mm mortar shells (which can be rocket assisted for enhanced range [such as light recon drones to 'see over the next hill']). The first shell is a proximity concussion grenade, with a sensor which detects either its altitude or its position to the tank and can maneuver itself (to a small extent with small deployable fins) to be in a prime position. Then a detonation occurs creating an intense concussion blast, capable of shattering the camera lenses, sensor systems, infrared detection screens, and even the internal workings of radar (or at least dislodging them). The blast, depending on weather conditions and its distance from the tank can also disable and shatter computer screens and systems within the tank, rendering the vehicle practically useless, especially in this day and age of modern computer-assisted warfare.

The second round is a shrapnel round, blanketing the tank with metal shards, capable of prematurely detonating ERA panels, tearing apart sensory equipment, taking out manual periscopes, damaging the main cannon, damaging NBC protection equipment, damaging the driver's window and periscope systems, damaging auxiliary weaponry, and even killing crew (if exposed). The system can also be utilized to engage enemy infantry, anti-tank teams, or any other vehicles.

Alternative Defenses and Masking

With its potential role in conjunction with infantry, any exposed crew must be protected. Armored partitions can be lifted into place to prevent shrapnel and small arms fire from inflicting injury on exposed crew (or riding infantry).

The commander's hatch is capable of being lifted like a manhole cover, and when it is lifted, a 'curtain' of a semi-transparent mesh material provides infrared protection, laser protection, and even shrapnel protection, meaning the tank can be completely quiet and cool (no thermal signature) and the commander can enjoy a wide view of the terrain without using electronics or exposing himself to infrared systems.

The ST-39K1 also utilizes silent operating systems, allowing for the tank to maneuver silently (with the systems described in the propulsion section). Other 'silent' features can render the tank as a prime defensive tool. Using an auxiliary quiet running turbine embedded in the rear armor above the infantry compartment and sheathed in heat absorbant material, coolant systems, and noise defeating systems, it can provide enough power to run basic fire control systems (infrared and electro-optical) along with enough power to operate hydraulic pumps to rotate and position the turret to fire. Batteries provide power to coolant systems to keep the turret and gun assembly from creating too much of an infrared signature and assist the small turbine in developing power to fire the main gun and operate basic systems.

Additional, passive defensive measures include infrared masking systems [refer to armament section] such as heat sinks, liquid coolant to cool computers and engine components, and turbine assisted engine cooling. The tank is also coated in a thin layer of radar absorbant material to enhance its chances of remaining undetected at extended ranges [primarily to thwart attack helicopters and radar guided munitions, and not to make it an 'Oh my God, Invisible Tank From Hell'... Retards.]. Although the paint is not a matte black, the ST-39K1 has an incredible passive LIDAR/LADAR defense, primarily the carbon fibre composite utilized in its armor [on the armor face], which is not RAM-coated as it is also has very impressive anti-RADAR abilities..

Primary Armament [K7 Armament Upgrade]

The original ST-39K1 sported a primary armament that was both devastating in its powerful nature and prone to malfunction to the point that the weapon was inoperable. However, this was only evident when the actual electronic firing system failed so no power would traverse into the propellant. Most other aspects of the system were trouble-free, and although the occasional malfunction would render some useless, they never rendered the entire weapon as useless. Swiftly, Advanced Armor Works engineers began working on a new propellant ignition concept. Immediately after the project began, a separate division of Dat' Pizdy Arms Corporation informed AAW that they had a potential solution. The Advanced Infantry Concepts division had just finished the design and limited production of the SR-91A1 assault rifle, a 'Twin Stage Ignition System'. The design looked promising, offering the impressive aspects of an electro-thermal chemical ignition system with the rugged reliability of a hammer, pin, and primer set-up.

With the release of the ST-39K7 Armament and Electronics Upgrade Suite [K7AEUS], the primary armament of the ST-39[K7] has been upgraded, not only in its performance, but its ruggedness and reliability. By moving to a twin-stage design, an idea the Armed Republic first pioneered with the assault rifle, the advantages of the hammer and pin design have been meshed with the performance enhancement of an electro-thermal chemical design. Not only is this a massive improvement of reliability over its predecessor, but a triple-fold improvement compared to the previous armament package of the ST-29K. With its all-new armament suite, the ST-39K7 proves that it is not only incapable of defeat, but far more capable at extinguishing its opponent, and the rest of its battalion, from the planet within mere seconds, while offering the ability to fire without power and in adverse conditions where the effectiveness of the electro-thermal chemical system would come into question. The ST-39[K7] and its armament package stands unrivaled, unparalleled, and awe-inspiring, for nothing in this world or the next will ever come close.

Its primary armament is the brand new, improved SB-MKEMG II [MK Deuce by its crew] 120mm electro-thermal chemical twin-stage ignition main cannon, incorporating the tandem EMAS [Electro-Magnetic Acceleration System] and DGA [Dynamic Gas Assist] systems to create a variant of the 120mm electro-thermal chemical main gun so lethal, so powerful, that there is no threat on this world that can stand a chance against a full frontal assault from the ST-39[K7]. To enhance the armament's ruggedness and reliability, a twin-stage or 'dual-fire' ignition system has been implemented. This combines the traditional hammer and pin design with the electro-thermal chemical system, offering not only the unparalleled ruggedness of the hammer and pin, but the performance enhancing abilities of the ETC. How is this accomplished? The Armed Republic, instead of designing a whole new shell to go along with its ETC system, instead modified previous shell casings so that the actual primer and conventional set up was never removed. The primer was replaced with an electricity-conductive material, but the actual primer remains. When the fire order is given, and the weapon engaged, both systems fire. However, since the electronic [ETC] firing system is far faster, it courses through the conventional firing system and just before impact of hammer/pin, jumps the gap and fires the Armed Republic's Improved Propellant 120mm Long Casing Rounds [120mm IPR-LC; these used an enhanced propellant designed for electronic and manual ignition, but better ballistics are provided by the electronic ignition. The long casing adds a moderate amount of powder to the original design; all export variants will be a standard 120mm set-up]. In a mere fraction of a fraction of a second [yes, that soon.], the conventional system [hammer/pin] then impacts, igniting the primer and any left-over powder in the casing, potentially aiding the velocity properties of the fired round. If some powder is left over, some additional velocity may be gained [already some will be by the ignition of the primer]. This is where the MK Deuce earns its reliability points. Because both of them fire at the same time, if there's a malfunction with the ETC system, the hammer/pin will still strike and still fire the round. Meaning, no power is required to operate the main gun. If there is no power, the main gun will fire conventionally and the round will be assisted by the Dynamic Gas Assist system [covered later], however, it will not be assisted by the SFPA or EMAS. When firing via ETC, additional velocity is added along with improved ballistics and the assistance of SFPA and EMAS.

The EMAS is a series of magnetic coils, positioned along the barrel which increase the velocity of the standard electro-thermal fired weapon. When a round is to be fired, the projectile is loaded into the barrel and the breech is closed, this brings the electrode mere micrometers from the opposite contact/conduit on the round. When the system is fired, a high voltage/low amperage spark jumps the gap and immediately courses through the propellant, igniting it in a massive, controlled burn, far, far more efficient than what you could ever get from a conventional cannon and with relatively little energy drain. This is where the EMAS system takes control. As soon as the round is fired, or after the electrical force is applied to the propellant, capacitors [which had built up energy from the generators, motor, and batteries] discharge electrical energy into a series of circuits which are routed to coils placed along the barrel of the weapon [which is laminated to prevent magnetization of the barrel]. The coils generate a magnetic field with the 'south' field attracting the round, as it approaches, the 'north' field takes control, propelling the magnetized round [with north facing out of the barrel, and south facing towards the breech] to the next coil. The process is repeated three more times. This allows for the round to be propelled from the barrel at a much greater velocity than would a standard electro-thermal cannon. Now, you may be asking, 'well, how did the round get magnetized?' The answer is simple, when the electricity is applied to the propellant to propel the round from the barrel, the entire breech is effectively drenched in electricity, and when electricity [its conduit] is wrapped around a metal object, it tends to magnetize [depends on what rounds you use]. The barrel itself is laminated to prevent it from becoming magnetized.

The firing mechanism and the barrel are enclosed in the SB-AHAS heat-absorbing and dissipating shroud which absorbs the heat and dissipates it over a wide area. The cannon is also stabilised on double axis' and can fire on the move in a full 360 degree spectrum and at elevations up to seventy degrees and down to negative twelve degrees. [For a better look at fire control capabilities, refer to the Threat Detection/Fire Control section]

The ST-39K7B Base Package carries a far different armament. Instead of the 120mm ETC weapon, the ST-39K2 carries a 145mm smoothbore conventional cannon. However, it is supplemented by the dynamic gas assist [DGA; Refer to Sections Above].

Next Generation Auto-Loader

The ST-39K7 utilizes the finalized TL-M-120 auto-loader, an auto-loader specifically designed for the ST-39K7 to give it unparalleled firing abilities. This autoloader does not require the cannon to be brought down and instead uses a variable drive assembly system to load the shell into the cannon's chamber at any elevation, assisted by an electrically operated hydraulic ram. The auto-loader has a larger ready rack of about fourteen rounds, which is then fed by a 'chain-link' drive to the ammunition storage compartment. Each time a shell is fired and one is loaded into the weapon, the armored partition [between the ammo storage compartment and interior of turret] opens and a hydraulic arm pushes the shell onto a 'plate' which then runs the shell to the auto-loader ready-rack. The auto-loader can load barrel-fired ATGMs provided that a crew member put the weapon on the rack and designate its firing properties. An emergency manual system is present so that rounds can be loaded in manually, and ejected manually, however power is required to feed the firing system and space is limited internally [since the gunner and commander would normally be in their 'cockpit']. This is removed on the ST-39K7B Base Package and replaced with a manual loader.

Auxiliary Armament

The ST-39K7's auxiliary armament suite is impressive and lethal on its own, providing the crew with a massive amount of firepower capable of being dispensed on targets in the air and on land. The primary auxiliary armament of the ST-39K7 has been replaced with the triple-barreled rotating GAM-445D I-Twin 30mm automatic cannon, which is very similar to the main gun of the ST-39K7's primary armament as it incorporates a similar version of the EMAS system, along with the proprietary dynamic gas assist system, making this already deadly cannon into a truly lethal machine. The GAM-445D 30mm cannon has been known, through-out the Armed Republic, for its legendary lethality and destructiveness. The armament is a near-mythical piece of warfighting equipment that held a coveted status within the military and in civilian life, as it had been a black project by Dat' Pizdy rumored to have never existed. By using the armaments own recoil, and excess pressure, the cannon achieves incredible firing rates, earning it the nickname of "Raker". The cannon is tied into the tank's 'Integral Fire Control Suite', which ties in all offensive/defensive systems into a centrally operated threat detection/targetting system. This allows the cannon to target anything the tank's main gun is tracking or targetting or anything that shows up on detection systems, meaning this cannon can target and annihilate anything seen on the thermal imagers, millimetric radar, LIDAR, LADAR, electro-optical, or low-light optical sensors. The mini-turret is also connected to the active missile defense systems and can be used to target missiles, aircraft, or other enemy units [such as ATGM crews]. This is replaced, on the ST-39K2 with a conventional 25mm auto-cannon.

The coaxial weapon on the ST-39K7s primary turret is a 20mm conventional-firing auto-cannon which can either fire independently of the main gun or in conjunction. One feature of the system is the fact it can be configured to fire a burst of fire immediately before the main gun opens up, igniting any ERA or disabling any threat interception devices, increasing the chance of a kill against the enemy target.

Aside from the auxiliary GAM-445D I-Twin 30mm automatic cannon and the coaxial cannon, the ST-39K7 sports an independently turreted 12.7mm cannon, mounted on a small turret assembly on the turret. The actual mini-turret contains little armor, aside from shrapnel defeating systems. Otherwise, the ITH-5A turret system houses the SB-AIG-81A five-barreled 12.7mm cannon along with the AG-39 40mm automatic grenade launcher, mounted side by side. Along with the two weapons is a laser designator and their own thermal/infrared targetting system for night and daylight operations. The turret system is directly connected to the infantry vehicles as well as the ARSB DefenseNet (and ALMRS/TTAC systems) so it can use information from any ARSB vehicle, VEPR-wearing soldier, or ARSB system on or around the battlefield. The system is controlled, remotely, by its operator within the vehicle and can operate with the missile defense system in taking out incoming missiles. The turret assembly maintains two ammunition linkages, each one leading to the armored ammunition compartment in the auxiliary turret. The first linkage draws rounds to the 12.7mm cannon. The second linkage draws grenade rounds to the grenade launcher. Each linkage is surrounded by an armored partition. The actual linkages are flexible and can easily flex while the mini-turret moves.

However, the ST-39K7 carries another card in her hand of active systems, the Rear Turret Air/Ground Defense Suite (RTAGDS), a comprehensive computer controlled surface to air/surface missile system capable of housing two ready-to-fire surface to air missiles (or ATGMs) in an armored box in the rear left hand turret quarter. The box is mounted on a fully moveable hydraulically-operated system and is directly tied into vehicle's own detection systems. Another note of this system is that it can use airborne radar courtesy of a direct wireless broadband connection system which may link it to numerous airborne units to utilize their local target acquisition systems. This unit is mechanically reloadable, meaning, when the missiles are exhausted, and need to be reloaded, the gunner (or commander) has to pull a hydrualic lever (or initiate it through the computer), which rights the box and drops it into a cradle. The computer then unlatches a small armoured partition which slide to reveal two stored missiles (which can be anti-aircraft or ATGM in nature or both, can be changed by the gunner). A hydrualic ram presses these up and into the launch box where small arms latch them into place. With the process completed, the partition slides back into place and the hydrualic system returns the launcher to its previous position, ready to unleash hell at helicopters or enemy tanks. After the process, a tone, along with a dialogue warning, informs the crew to reload the missile launch system. The gunner then removes two more missiles from the missile storage box and positions them in the launch box reloader (after opening an armored partition). When completed, the partitions are closed and a button is pressed, telling the computer that the launch box can be reloaded. A total of six missiles can be carried [two in the launch box, two in the reloader, and two stored]. The armored box can also contain and fire the ATM-80A HKKV (Hyper Kinetic Kill Vehicle) which is of the 'Line-Of-Sight, Anti-Tank'-type of anti-tank missiles [super velocity, kinetic kill].

Integrated Modular Side-Turret Weaponry Mount System

And finally, a mainstay of the ST-series of tanks, the Integrated Modular Side-Turret Weaponry Mount System, a series of slides and pivot joints to allow for the addition of multiple weapons to the side of the turret, those weapons are as follows:

.50 MG (AA) Any higher-caliber AA Cannons (up to two on each side) ATGM missiles ATGM missile pods LOSAT (Line of Sight- Anti-Tank) tubes Unguided rocket pods SAM Missile Pods Sensor equipment Communications equipment

Rear Turret Weapons System

The RTWS is a bank of weaponry that can be [note key words - 'can be'; optional, can be removed] mounted on the rear of the turret. The foremost of these systems is the MGL-56D missile launch system. The system includes an armored 'bank' of a dozen laser-guided munitions. The bank is hydraulically lifted or tilted (its default setting is tilted at a fifty degree angle). If a target is chosen, the gunner illuminates a target with a laser or infrared beacon and fires a missile. The missile locks onto the infrared beacon (which can be set at a certain infrared wavelength [usually towards the end of the infrared spectrum that is hardest to create using flares, heat, etc.]) or laser and maneuvers toward the target, even being able to change course (assuming target is far enough away). The ATGMs fired are a variant of the ATM-7B anti-tank missile with their guidance system replaced with an infrared beacon/laser locator. Some of these missiles are modified to carry grenades (releasing grenades over a target) or a down-ward facing shrapnel round for engaging enemy infantry lines. The laser designators and infrared beacons are located on two small rotating turrets that can be used together or independently to target up to four enemy targets [or more, using DefenseNet data, the tank's targetting data, etc.]. Also, standard ATGMs can be mounted to the rear of the turret.

Threat Detection and Fire Control

Comparable tank electronics across the world had been accelerating to points near the level that was present aboard the ST-39K1 series of tanks. This slim advantage was not enough for the Armed Republic and Dat' Pizdy's Advanced Armor Works was immediately commissioned to produce the most technologically advanced electronics set every conceived. The ST-39K1 Next Generation Battle Tank utilizes the DEITE Comprehensive Electronics Suite. The Digital Electronic Information Utilization Entity is a comprehensive electronics suite which networks every threat detection and fire control system into a single streamlined entity capable of truly awesome capabilities matched by none. However, the DEITE system is not only an electronics suite, but an interface. The Direct Neural Interface has been paired and mated with the DEITE system to mold man with machine, and allowing for its data to be sent to any other unit courtesy of the ARSB DefenseNet, a three-dimensional composite system utilizing data from every threat detection system throughout the entire Armed Republic. These key features support the Armed Republic's doctrine of see first, fire first, and kill first.

The Threat Detection Suite [TDS] portion of the DEITE system is a composite three dimensional view of the entire battlespace.

The Threat Detection Suite a comprehensive set of detection systems. The primary set is the combined Photon Emission, Detection, and Ranging [PEDR] suite which utilizes two detection methods: Ambient Light [LIDAR] and Introduced Laser Detection [LADAR]. The two are intertwined and used at the same time. The GMLQ/L55 pulsed laser focal plane array [PLFPA] provides a wide view, three dimensional composite imaging, increased frame rates [faster threat detection], and can provide up to nine centimeters of depth perception since it is a photon emission and ranging device and does not measure intensity of the laser/light but rather the time of flight of the photons to the target, and thereby giving the range [which also allows for depth perception and the ability to see through fog, netting, smoke, etc.]. Because information is encoded in each pixel, the system can produce a three-dimensional, or "angle-angle-range", image. Emitters are located through-out the vehicle, however, twin prominent emission arrays are situated on either side of turret with a full view of the forward arc and sides of the vehicle giving the crew and commander an unparalleled level of situational awareness. This is combined with numerous smaller arrays positioned through-out the vehicle.

However, not only this advanced suite can provide the crew of this tank with unparalleled situational awareness abilities, it is further supplemented by the Primary Thermal and Infrared Detection Suite [PTIDS] which offers enhanced thermal and infrared viewing and comprehensive threat detection. The system can be used passively [using passive forward looking thermal imagers and infrared systems to view the battlespace] or actively by using an active infrared imager to offer RADAR-like qualities. This system networks directly, as do all other systems, into the DEITE CES to provide a comprehensive three dimensional view of the battlespace. There are twin forward looking infrared systems positioned on the vehicle that provide the primary source of infrared detection and ranging, however, smaller systems are located through-out to maintain a heightened detection status.

The final portion of the three-point non-optical detection suite is the Comprehensive RADAR Threat Detection Assistance System [TDAS]. The primary system of the TDAS is the GRMQ/M18 millimeter wave RADAR, providing exceptional ground and air detection at varying ranges which aides in the detection of the enemy [primarily enemy rotorcraft/aircraft] and provides back-up range-finding, and provides firing data to the close-in defense systems while alerting the crew of incoming projectiles [both gunnery and missile] and other vehicles [courtesy of a coupled passive radar receiver/radar warning receiver]. Also, the GRMQ/M18 provides corrective firing solution data to the computer after analyzing the flight path of the previously fired round and adjusting for such deficiencies in variables the computer did not consider. The GRMQ/M18 is coupled with the down-sized ROSQ/S31, a variant of the frequency cycling system on the DP-21 electronic warfare aircraft, instead, it quickly and efficiently cycles millimeter wave radar frequencies to prevent jamming by either aircraft or other ground vehicles. The system is housed in a small dome at the rear of the vehicle while two planar arrays are positioned on the turret rear quarters and one on the turret face to maintain full three hundred and sixty degree threat detection and awareness.

However, the commander and crew must always have some sort of optronics aboard to complement the array of electronic detection devices. Using cameras imbedded within the armor and all through-out the vehicle and within miniature turrets, the crew is given an unparalleled real-time view of their surroundings. The interesting note is the fact that before the image from the camera actually comes across the screen [or directly into their brain], it is supplemented by the PEDR, PTIDS, and TDAS detection suites. This allows a commander to see what may be hidden, as before the image is shown to him, an outline is added to the image displaying where a hidden tank lies in wait, or a cursor designates where the PEDR suite detected an optical anomaly. .

Detection is but one part of the equation which results in the definite victory over an opponent, and fire control must be on par with your detection capabilities in order for the equation to truly be on your side. This is where the DEITE system rises above all. It provides unparalleled data consumption and utilization to ensure the complete and utter dominance of this truly amazing vehicle on the battlefield. The heart of the DEITE Fire Control Suite [FCS] is the DefenseNet which links this singular tank to a database of immeasurable information and the computing power to process hundreds of separate targets per tank. The first thing the fire control suite does is turn all consumable data into the singular three-dimensional battlespace view which the system relies upon. From there, the DEITE system actually assists the commander and/or crew in determining which targets to attack. Regardless of the commander's actions, the DEITE system observes friendly unit actions as well as opposing force actions to determine likely outcomes in all forms of attack and can advise the commander, or work in conjunction with him. The system computes hundreds and thousands of potential outcomes and observes the opposing force to determine their strategy, plan of attack, fighting style, etc. and then develops the best way to counter-attack or defend. Obviously, the system can be disengaged, but when engaged, it gives the commander a foresight into any potential maneuver or action. Supplementing this is the fact that each individual tank can track upwards of one hundred and twenty targets, ranking them according to type, threat level, range, and other factors and placing them in a prioritized fire list, which can be changed according to mission objectives.

By using the DefenseNet and its computer system aboard, the DEITE system can fire on an unlimited number of targets. However, with not enough armament aboard, it can safely engage up to seven targets, simultaneously [using main gun, mini-turreted 12.7mm, mini-turreted secondary armament, and up to four ATGMs]. The DEITE system can operate and utilize any armament system if directed by the commander and allowed to engage targets on the priority list, freeing up the gunner and commander to operate the major armament systems [mini-turreted weapon and main gun]. Another interesting fire control ability is the fact that one tank can direct the fire of several other tanks. Say, in the heat of battle, a tank is hit, and although still functioning, its crew is incapacitated or killed. A host tank, if the commander permits, can then take over that tank and direct it so that it is a still-functioning member of the attacking force.

Even though the DEITE system can control other tanks, how about its own? This is where it outperforms itself. Using every available system to its advantage [threat detection, DefenseNet, range-finders, wind speed/direction detectors, weather detectors, etc.] to compute firing solutions that are so precise, so immaculate, that it is an absolute rarity, if not impossibility, for this tank to miss its intended target. The DEITE system allows for the tank to engage any target, moving or stationary, while the tank itself is either moving or stationary at any speed, elevation, or in any weather. Using barrel referencing and digital imaging, the turret and barrel will automatically align itself to engage a target on its prioritized list according to fire control data computed by the system. The system can be overridden to give the commander absolute control, however the barrel is automatically adjusted for range and windage. The DEITE systems advancements do not stop there. The unparalleled level of situational awareness offered by the DEITE system also allows for a near-impenetrable level of defense if the weapons work in conjunction to defeat incoming threats before they do any damage. This is done by networking with the secondary armaments as well as present missile or projectile defense systems.

In the end, the crew of the ST-39K7, and the operators of the DEITE Comprehensive Electronics Suite, are provided with a completely unparalleled, unrivaled, and unbeatable threat detection and fire control system which gives them a battlefield dominance that cannot not be removed from them. The DEITE allows them to see first, plan first, fire first, and destroy first, the absolute doctrine of the Army of the Armed Republic. The ST-39K7 cannot be beaten in its level of situational awareness and threat detection.

Auxiliary Systems

The ST-39K7 packs an incredible set of electronics, and auxiliary systems are no exemption, ranging from the ARENA-FG IV to the SB-ECS, the auxiliary system provide a level of defense which ensures the survival of the ST-39K7 on the battlefield of today, tommorow, and well into the future. The first system of the 'Auxiliary System Network' is the ARENA-FG IV, a revolutionary mini-turreted microwave emitter which serves as an active missile defense system. The emitter uses microwaves to fry an incoming missiles electronics, likely detonating the missile prematurely or potentially igniting its fuel or damaging its avionics, rendering the missile useless to the point where its effectiveness drops against the tank [if it manages to hit it]. The next system is the Shtora-3 Active Defense Suite, which provides elementary RADAR jamming abilities, especially against the rather basic radars of opposing tanks. Coupled into this is an anti-laser rangefinder/weapons guidance tool which uses a beam of controlled ultraviolet rays to change the frequency of an incoming laser, forcing its electronics to determine that the point where the UV rays intercept the laser is the distance to target. And finally, the Environmental Control System, a nuclear-biological-chemical defense system which provides a full seal of the internal tank structure. Oxygen rebreathers and filters clean outside air and recycle unused internal air, providing fresh oxygen to the crew.

Communication

The ST-39K1 utilizes the next generation of AEISCN equipment, the AEISCN-FG IV, a comprehensive multi-state broad communication suite which shares target information with other friendly tanks in the field along with other information, also allows friendly tanks in large numbers to make coordinated attacks through out the battlefield. The system also allows friendly tanks to instantly reorganize into new squadrons and divisions for new assaults and also relays all information back to command and directly into the ARSB DefenseNet. This system also checks in repeatedly with GPS and military satellites to update terrain and enemy movements [ARSB satellites aid this and can pinpoint location with an accuracy of a handful of feet). Also takes updated information and relays it to the commander's screen which displays all friendly tanks, enemy tanks, standing orders, enemy formations, buildings, objects, and other environmental objects. However, due to the fact that the entire tank is mostly electromagnetic pulse resistant, most of the communication gear is actually flat-panel directed radio wave receivers, tucked into the armor of the ST-39K1, providing excellent mass-data transfers. Complimenting this is the ability for the active infrared detection gear to be used as communication gear. However, the ST-39K1 utilizes normal analogue radio, but the antennae must be attached to the points after a protective cap has been removed, however, when the antenna is attached, it compromises the EMP hardening of the communications system.

Enhanced Direct Neural Interface

Previous, a clear and precise line divided man from machine, electronics from the DNI... However, the line has blurred with the ST-39K1, as the Direct Neural Interface is directly tied to the DEITE electronics suite. The new Enhanced Direct Neural Interface allows for the computer to learn, to advise, and even assist the commander in engaging targets of all threat levels. The computer aboard the ST-39K1 has accelerated from a mere tool of warfare to a true combatant, deciding the fates of countless enemy combatants. The ST-39K1 utilizes an all-new enhanced direct neural interface system, designated the Direct Neural Performance Enhancement Interface [DNPEI] which is the conventional direct neural interface system, but enhanced and augmented with a system that allows for tank crewmembers to learn, in one instant, what the entire armored force has learned since the introduction of the DNI, and the memory recording system. Now, the stuff learned by tank crew before can be removed, on a small disk, brought to the tank, plugged in, and the crew instantly has all of that information at their disposal, the feeling is like suddenly remembering something you thought you had lost. Overall, this effectively means the entire ST-39K1 tanker force will be a common, elite unit, utilizing the memory data from our veteran crews. It also allows for systems to be easily uploaded into the tank itself, new operating systems, etc.This is the enhanced portion of the DNI, the conventional system is the one that allows the crew to operate the tank using their own minds, although auxiliary systems are present to allow for manual operation. Targeting information is transferred directly into the gunner's and commander's minds, allowing each to target and fire using their own respective systems. A direct feed allows all three crewmembers (driver, gunner, commander) to view all data gathered by the detection systems, allowing the driver to use millimetric radar, thermal imagers, low-light optics, LIDAR/LADAR, electro-optical, etc. to pilot the tank [as described earlier] and avoid targets while allowing the commander to designate targets in a three dimensional space for the gunner to target and fire on using the main gun. The DNI is a neural implant that intercepts signals from the crew's mind and transfers it directly to a computer system (or vice versa; computer to mind). The system allows the driver to drive and control all facets of the tank's propulsion and driving through his mind, while the two combat crew utilize the system to create a perfect mating of man and machine, creating such a lethal pair that this tank is bound to come out on top against any opponent it faces. Targetting information is gleaned from all active and passive detection systems and organized into easy-to-understand, readable displays in the crew's minds. Each system is separate and shows each separate crewmember information specific to their mission. A central computer system takes all data and turns it into three streams (one to each crewmember) which then enter the crew-member's mind directly by stimulating different portions of the brain.

Modular Internal Construction

Its been proven that the more technologically advanced something gets, the more it breaks down. This cannot be helped as there are far too many things that can malfunction. However, the ST-39K1s designers took this to heart to create a modular tank. Each 'sub-system' is independent of each other and in the event something malfunctions it can be removed within minutes and replaced (providing the correct logistical support is nearby). Its engine is mounted on a sliding mechanism that can slide out and stay suspended in the air (on its rails) and be serviced in that position (giving the repairers the ability to repair anything on the tank and not just the visible portion [as would be on a conventional tank] or in a maintenance shop). The engine compartment was designed to be pulled out with little assistance. Four men can accomplish it. The engine itself is even modular, composed of eight distince 'pieces' which can be easily removed and replaced. The suspension is its own sub-system as is the drive train. The transmission is its own subsystem composed of three modular sections. The turret can be removed with little effort. The commander's section and its computers are all designed for easy replacement as is every other notable feature of this tank.

The average field service time for this tank (a complete field overhaul [in ARSB's standards] is the replacement of the following: engine, transmission, drive-train, track system, ERA panels, and the driver compartment) is now at a record time: 33 minutes. Of course, this is providing that you have the logistical power to do this. If you have little logistical support for an advancing armor group, then don't expect the modularity of this tank's core systems to help too much. But if you have strong supply lines, great logistical support, and efficient maintenance personnel, then you'll be able to watch as a burnt out hull of a tank is returned to active duty in a little over half an hour.

Extra

The ST-39K1 also offers an enhanced frame, strengthened braces, low radar signature [discussed earlier], low heat signature [discussed earlier], and a low visual signature [low height, fairly narrow] for survival systems. Ergonomical features include a fully liquid and central air cooled crew compartments as well as engine based liquid heaters to provide even heating in the crew compartments during the winter while reducing engine heat signature. Heated seats, defoggers for cameras [along with pressurized air systems to keep the lens and area clear of debris/mud], dehumidifier [to remove moisture], humidifier [to add moisture in dry environments], low-noise fans, and well-placed lights. Storage is present within the turret for each turret crewmember to carry a personal defense weapon and ammunition. The driver also has a holster on the side of his seat for a personal defense weapon and ammunition.

An issue in the former ST-series of tanks was the rather fragile nature of its electronics, with the ST-39K1 [and K2], the electronics themselves are hardened and in most cases placed in protective cases with dampening devices to prevent pressure shock or exposure during combat conditions. This significantly increases the survivability of the vehicle.

General Specifications

Height- 8.4 ft. [Both Packages]

Width- 11.8 ft. [Both Packages]

Length- 27 ft. [Both Packages]

Weight- 72 Tons [ST-39K1 ASP]; 67 Tons [ST-39K2 BP]

Crew- 3 (Driver, Gunner, Commander) [ST-39K1 ASP]; 4 (Driver, Gunner, Commander, Loader) [ST-39K2 BP]

Obstacle-transversal height- 3.5 ft. [Both Packages]

Max fording depth- 6.5 ft. unprepared, 12 ft. prepared [snorkel] [Both Packages]

Engine- MVE-1600-EXA3 1600 horsepower twin turbocharged diesel engine with hybrid fuel cell/battery powerplant [Both Variants]

Transmission- AHE-5851-R2 Advanced Electrically-Fired Hydrostatic Transmission system (powered by electricity and with an auxiliary manual transmission system) [Both Variants]

Maximum range- 270 miles [Fuel Alone; IDEAL Conditions; Does Not Include Electrical Systems]

Speed- 48 mph on-road maximum [can be governed at max. fuel efficient speed], and 36 mph maximum off-road [IDEAL conditions; ST-39K1 ASP and ST-39K2 BP]

Armament Specifications

Primary- 120mm Electro-Thermal Chemical Smoothbore aided by Dynamic Gas Assist, Successive Fire, and EMAS [ST-39K1 ASP]; 145mm Smoothbore Conventional aided by Dynamic Gas Assist [ST-39K2 BP]

Auxiliary- 30mm Auto-Cannon (Auxiliary Turret; Anti-Helicopter/IFV), 20mm Auto-Cannon (Coaxial), 12.7mm/40mm grenade launcher (Miniature Turret; Anti-Infantry/Light Vehicle/Helicopter) [ST-39K1 ASP]; 20mm Automatic Cannon (Auxiliary Turret; Anti-Helo/IFV), 20mm Automatic Cannon (Coaxial); 12.7mm/40mm grenade launcher (Miniature Turret; Anti-Infantry/Light Vehicle/Helicopter) [ST-39K2 BP]

Heavy [OPTIONAL]- Side Turret System, Rear Turret System, Ground/Air Missile System [Both Variants; OPTIONAL]

Cost: 38.5 million USD, 32 million USD for allies [ST-39K1 ASP]; $21.8 Million USD, 19 Million USD for allies [ST-39K2 BP]

-NOTE- Some references to the ST-39 may refer to the ST-37 and vice versa.