Department of Defense:

Exo-Wars Military Database

Axis T-77A Rattlesnake Stealth Exo

The Rattlesnake is the only true stealth Exo produced by the Axis. Although ‘stealth’ conversion packages exist for almost every Exo in existence, only the Rattlesnake (in the Axis) was designed and produced exclusively to maximize the stealth technology available. When the Rattlesnake project began the Axis choose to use the Asp as the base to the Rattlesnake. Since the Asp was the most maneuverable and agile of all the Axis Exo’s its frame was a natural choice. Several production models of the Asp were shipped to three separate and secured locations. Where the weapons, armor and controls were stripped out and rebuilt from the ground up.

Over the course of the project the Rattlesnake began to take shape. The physical frame of the Asp remained (mostly) the same, but after that the Asp and Rattlesnake part ways. The computer and control system for the Rattlesnake involved the incorporation of new state of the art sensor and display technology. The cockpits controls are all digital readouts and computer controls. The final design of the Rattlesnakes cockpit would not look out of place in a science fiction movie. The armor of the Rattlesnake was also reworked. New armor plates were designed and coated with a special RAM Skin (Radar Absorbing Material) that could absorb many forms of energy including thermal signatures, visible light spectrum and LADAR/RADAR waves.

The armor is what gives this Exo its name, the telltale angles of a stealth equipped armor created the illusion of several diamond shaped patches on the Exo’s armor. The pattern reminded one of the technicians of a Diamond Back Rattlesnake he had seen in pictures, and the name stuck. Once equipped with its controls and armor the Rattlesnake entered a short shakedown period. In this time all the systems were put through there paces. It was also during this time that the Rattlesnakes weapons payload was determined. At first stealth treated weapons similar to those of the Asp were chosen. But many of the senior designers of the Rattlesnake felt that these less powerful weapons did not suit the performance capabilities of their new design. To that end the design team lobbied with the military to allow them to test a new weapons configuration for the Rattlesnake, a payload better suited to the units stealth abilities and performance.

The new payload was centered on small, long-range munitions able to target and destroy enemy assets at a long range. The main gun of the Rattlesnake was a specially modified medium rifle, the standard rocket pods seen on almost all Exo’s was dropped in favor of a more stream lined look to the Exo. However the Rattlesnake still needed a hard-hitting weapon should it come up against another Exo or armored unit at close range. So the Rattlesnake was equipped with a pair of heavy hand grenades. This combination of weapons has proven to work quite well with the Rattlesnakes stealth characteristics and performance. However the military insisted that a rocket pod hard point be maintained on the unit as a option. So the Rattlesnake also has two small rocket pod hard points (one per shoulder) to accept custom designed light rocket pods (fitted with stealth shielding) that can be jettisoned when empty.

The Rattlesnake has only seen limited use in the field so far. The cost of the Rattlesnake has meant that very few units exist, and those that do are closely guarded. Any mission a Rattlesnake is expected to perform is planned well in advance and with every conceivable variable. Only when a mission is assured of success are the Rattlesnakes issued their marching orders.

The success of the Rattlesnake and its stealth technology has prompted the Axis to look at adding stealth technology to other Exo designs. Currently the Cobra Command Exo is undergoing analysis as a potential new Stealth Combat Exo. However it will be at least a few years before this unit is complete and ready for production.

Statistical Data

Name: Rattlesnake
Manufacturer: Russian Military Manufacturing
Production Class: Stealth Exo
Production Code: T-77A
Production Type: Limited Production.
Crew: One

S.D.C. By Location

**Head: 90  S.D.C. x1
Shoulders: 120  S.D.C. x2
Arms: 75  S.D.C. x2
*Hands: 30  S.D.C. x2
Upper Legs: 120  S.D.C. x2
Lower Legs: 90  S.D.C. x2
Feet: 45  S.D.C. x2
Engine: 90  S.D.C. x1
Ammo Drum: 45  S.D.C. x1
***Main Body 300  S.D.C. x1
* A single asterisk indicates a small and difficult target to strike, requiring the attacker to make a “called shot”, but even then the attacker is –4 to strike.
** Destroying the head of the power armor will eliminate all forms of optical enhancement and sensory systems. The pilot must rely on his own human vision and senses. No power armor combat bonuses to strike, parry, and dodge! The head is a small and difficult target to hit, it can only be hit when a character makes a ‘called shot’, and even then the attacker is –3 to strike.
*** Deleting the S.D.C. of the main body will shut the armor down completely, making it useless. In emergency release system allows the pilot to escape the Exo if the main body is destroyed, and they survive. However most Exo’s do not have any storage area for food, armor or weapons. Therefore, unless otherwise noted, the pilot must rely on their own sidearm and any armor they were wearing when piloting the Exo.

Speed:

Running: 53.0 mph (84.8 km) maximum. Note that the act of running does not tire the operator and the Exo’s top speed can be maintained indefinitely, only the pilots own fatigue will limit the duration of the unit’s movements. The Rattlesnake walks at a more reasonable speed of 32.0 mph (51.2 km), and should be considered the units cruising speed.
Leaping: The powerful robot legs can leap up to 21.2 feet (6.8 m) high and 10 feet (3.2 m) across from a standing position. A running jump increases the distance to 42.4 feet (13.7 m) long and 10 feet (3.2 m) high.
Underwater: Swimming: The Exo can swim using the same type of paddling leg and arm motion as a human at a maximum speed of roughly 4 mph (6.4 km/3.4 knots). It can also walk along the bottom of the sea at about 25% its normal running speed.
Maximum Depth: 1,000 feet (305 m).
Statistical Data:
Height: 12.0 feet (3.9 m) from head to toe. The additional of should and back mounted weapon systems can increase the height of the unit. Weapons such as rocket pods and mortars are common to Exo’s and will modify their height.
Width: 10.3 feet (3.3 m).
Length: 6.0 feet (1.9 m).
Weight: 2.3 tons without the addition of weapon and ammunition.
Physical Strength: Equal to a P.S. of 30.
Cargo: None.
Power Systems: Russian TE-S1 Turbine Engine feeding a super conductive battery.
Range (Per tank of Fuel): The battery provides enough energy for 20 hour of regular maneuvers or 12 hours of moderate combat maneuvers. Heavy combat maneuvers will use the batters charge in 8 hours. The Turbine engine must then be activated to either recharge the battery or directly power the Exo. The TE-S1 will provide the Exo with direct energy for 30 hours of moderate use before needing refueling. Heavy use will consume the fuel supply in 20 hours. Recharging the battery to full capacity takes 1 hour (4 hours if on the move). All Exo’s use an advanced Turbine Engine that can burn any gasoline derivative fuel, including automobile gasoline, aircraft and marine fuel and even diesel without ill effect. However all non-Exo fuel reduces the operation abilities (range, speed, duration) by 25%. Only Exo Fuel will allow the unit to function at 100% efficiency.
Construction Cost: $1,605,333.00 dollars for a new, undamaged, full equipped standard Rattlesnake Exo complete with all configuration type weapon systems.

Weapon Systems:

Weapon Name: Special Notes:
Hughes 30mm Medium Assault Rifle   25 explosive tipped shells per clip. Only standard clips fit the Hughes 30mm. The Rattlesnake carries 2 extra clips.
 Raytheon Company 50mm Light Rocket Pack (Optional)   The normal payload of the Rattlesnake is 2 x 8 round rocket pods, for a combined total of 16 rockets. The rocket pods are designed in a stack configuration, so only 4 rockets per pod are ready to fire at a time. The remaining rockets slide into launch position once the first is fired.
Grumman & Saco Defense Heavy Hand Grenade   The Cobra normally carries 3 Light Grenades strapped to the arm that carried the main gun. The free hand can then reach over and use the grenade without disturbing the grip on the weapon.
General Electric Vibro-Blade    
Hand To Hand Combat   Rather than use a weapon, the pilot can engage in hand to hand combat. See Basic and Elite Power Armor Combat Training for combat bonuses.
Sensor System Note   The Rattlesnake has full optical systems, including laser targeting, telescopic, passive nightvision (light amplification), thermo-imaging, infrared, ultraviolet, and polarization. Plus all the other features common to all Exo’s.
Sensor Bonuses   The Rattlesnake gets a bonus of +1 to strike, and +4 to dodge and +3 to parry in addition to the power armor target bonus and Basic or Elite Power Armor Combat Training bonuses. As well the Rattlesnake possesses and advanced sniper computer, providing a +2 to strike on called sniper shots only.