Animarnia
22-12-2006, 08:42
http://www.animeonscifi.co.uk//hosted/animarnia/AIlogo.gif
AI-DI/RH-02 "Stalker" Deep Intruder and Recognisance Helicopter
http://www.animeonscifi.co.uk//hosted/animarnia/stalkerrh.JPG
History
The Stalker comes from Animarnia Industries as its Second addition to attack helicopters; This time labelled a "Deep Intruder" the Stalker is a stealth designed helicopter to go in deep behind enemy lines, hit hard and then escape or to perform advanced Recognisance for as the vanguard for Ground pounders. Everything about the Stalker is state of the art pushing modern technology to its current limit like never before on a helicopter. Designed by the Project Leader Nicole Hoone; it is the personification of her personality. Inhuman, flawlessly sleek, sexy and soulless - cold as a walk in fridge, Cold as gun.
Propulsion
The Stalker is equipped with Two ADI-Turbo-X22s Engines that provide an astonishing 7000lbs of thrust (3500lbs each) protected by First Generation Self Sealing armour that works against all small arms and up to 20mm Armour Piecing rounds. The Engines can propel the Stalker at up to 250kph (155mph) and still remain almost silent and a maximum safe speed of 328kph (205mph) moving at 6.5 meters per second climb. The ADI X22 Helicopter engines also incorporate 3D Thrust Vectoring for extra Agility and combat manoeuvring. The addition of a "Bust Speed" After burner is able to increase the speed of the craft up to 400kph (250mph) but only for a short time. This is due to the stress this can put on the airframe and the engines, as well as fuel drain so it is not recommended for prolonged use.
A Thrust directional control like those used on the Harrier and JSF are also employed here for faster vertical take off and extra agility by redirecting a portion of the engines to micro thruster. Thus allowing the pilot to put the thrust of the engines in a different direction dramatically altering the direction of the helicopter almost instantly. This split second can mean the difference between taking a hit and the threat missing altogether.
Designed using computer databases, The Stalker redefines the helicopter in terms of power, manoeuvrability, technological sophistication, and materials engineering. The twin turboshaft engines drive an advanced five-blade, bearing-less main rotor, which further enhances high performance and agility in air-to-air combat. The fantail anti-torque tail rotor system lets The Stalker execute amazing manoeuvres near impossible for other helicopters.
Computers & Cockpit Electronics
Animarnia Integrated Computer and Fire Control System (AICFCS)
The Integrated Computer and Fire control system is the true master of project Cerberus using state of the air liquid cooled computer chips for processing battlefield data with precession and speed no human could reach. The heart of Cerberus controls Offensive, Defensive and Navigation systems. Uses a 1024 bit encryption protocol that re-codes every 15 seconds and up links via Satellites to all allied vehicles; aircraft and ships in theatre and uses Secured GPS tracking to track there positions in real time in relative position to the craft. It also links to spy satellites and radar installations to identify and track up to 1000 Simultaneous threats at any one time and inform the pilots of the closest and most dangerous threats to them. The system also reads data from the internal sensor systems and radar to create a full real time realty replication of any given battlefield giving the crew/pilot a distinct advantage for tactical planning. The system also automatically controls all defensive systems and engages them as needed such as the ECM and Point Defence Lasers warning crew of coming threats.
This can all be fed to a Pilot or officers visor/Helmet or to display screens depending on the situation and equipped vehicles giving the crew a full 360-degree display and secure communication.
Display Systems & Avionics
All of the display screens in the cockpit are LCD flat panels and touch screen allowing a wealth of information to be displayed an menus overlay each other as options are selected and shown. The cockpit also has information projected upon it including targeting; and altitude, speed etc all relevant information for both the pilot and the gunner as required
The System also linked to the AICFCS and displays the information into the pilot's visor as a heads up display. The Gunners helmet is linked also but with the addition of a "gun cam" that is linked to the nose mounted 30mm Auto cannon and tracks with the gunners head movement for faster targeting. The one way Visor is made of glare resistant materials so that the pilot can look directly at the sun and not be blinded. Integrating with the AICFCS system means that the onboard computer can conduct advanced tactical analyses of any given situation and project information such as chance of success, and calculate casualties and potential collateral damage as well as pop up nearby threats and highlight mission objectives
All control systems can be used via the LCD displays or via voice command; the Stalker is also fitted with a prototype neural control Interface that uses a neural network to read nerve impulses like normal controls and operate accordingly.
Design
The Stalker is categorised internally as a DI or Deep Intruder meaning it will operate usually alone or in small groups deep behind enemy lines or as advanced Recognisance. It's very stealthy but not necessarily overly powerful but carries enough weaponry to conduct deep surgical strikes.
So the design was important to be protected, fast, silent, stealthy and have combat survivability without sacrificing too much firepower. The main structure is created using genetically engineered Silk worms to create a synthetic alloy called "Silk Steel" which is as playable and light as Aluminium but amazingly strong with a melting point of 5000 Kelvin. Silk steel takes a while to produce from dedicated farms and is not in abundance but is extremely useful and has a high tensile strength. The cockpit is encased with a double layering of silk steel with a sandwich layer of self-sealing materials to provide maximum safety for the pilot and onboard systems. The engines and fuel cells are encased in flame retardant foam to prevent fires from getting out of hand or spreading to the fuselage or cockpit with a 30 minutes firewall breaker between the cockpit and the fuselage.
The glass of the cockpit is duel layered triple reinforced bullet proof so that flying shards or bullets don’t penetrate it with a sandwich layer of silk steel mesh. The sides and bottom of the cockpit are layered with a combination of reinforced Kevlar and Heat Reconstruction materials which when heated to a certain temperature, which all bullets would reach upon impact, it hardens to prevent passage of the bullet and then repairs seals back to its original form. This means that in the unfortunate case a bullet strikes in the same spot twice, it would not be any different than hitting it where it was undamaged.
The Undercarriage and wheels of the helicopter fold up into internal bays to reduce drag and RCS however automated computer control systems drop the undercarriage if the body is damaged beyond 60%. In the Event of a worst case Scenario: - the Rotor blades are blown off using micro explosive packets followed by the cockpit canopy and the Pilot and Gunner are ejected from the helicopter
The Stalker also features re-configurable fault-tolerant digital mission electronics and on-board diagnostics as well as triple-redundant fly-by-wire flight control and simple, remove-and-replace maintenance.
Armour and Defence Systems
The armour of the Stalker is strengthened to be heat resistant and durable; it is also protected against all small arms and can take up to 30mm rounds without puncturing. The Animarnia Defence Department has classified the actual materials and weight of the armour.
The First Layer is a Duel layer of thin silk steel with a sandwich layer of sealing form much like self sealing fuel tanks; the foam ejects from the puncture and oozes over the hole until its sealed. This works on small holes in the armour from dedicated AA guns; Missile damage is impossible to heal due to the sheer amount of damage. The Second layer is a Composite of Tungsten, Titanium and Aluminium to provide protection against heat and bullets. The third layer is Carbon 60, Reinforced with diamond Helix's as the last layer of defence against incoming fire and protect the internal equipment. The armour is surprisingly light for its effectiveness weighing in at just over 6kgs per square meter.
Aerial Defence Counter Measure (ADCM)
Fires off a small cylinder projectile that operates in three parts; the first part generates a large amount of heat equivalent to single fighter engines; giving it a large Infrared profile on enemy radar. The second layer uses advanced sounding technology to create an exceptional amount of sound and emit a large Radar Cross section. The third stage is a Flasher; a very, very bright 2 second light bust to blind anything behind the deploying aircraft. As a secondary layer; the ADCM emits a very powerful Radar pulse; and enough fractal mini lasers to create thousands of targets for laser guided munitions. ADCMS are most commonly used on Aircraft; but can be fitted on ships and land vehicles.
Electronic Countermeasures (ECM)
The ECM Suite is composed of two parts; first is a Radar Jamming system; to jam enemy guidance systems and stop them getting an active lock on the craft. The second part is a high frequency pulse sent out in all directions that fools guidance systems into thinking they've hit there target when they haven't making them explode prematurely
Stealth
The Stalker is designed to be stealthy; with that being its primary defence the Stalker makes use of cutting edge technology and uses a host of stealth systems.
Active Camouflage
Active camouflage or adaptive camouflage, is a group of camouflage technologies, which allow an object to blend into its surroundings by use of panels or coatings capable of altering their appearance, colour, luminance and reflective properties. Active camouflage has the potential to achieve perfect concealment from visual detection.
Active camouflage differs from conventional means of concealment in two important ways. First, it makes the object appear not merely similar to its surroundings, but invisible through the use of perfect mimicry. Second, active camouflage changes the appearance of the object in real time. Ideally, active camouflage mimics nearby objects as well as objects as distant as the horizon. The effect should be similar to looking through a pane of glass, making the camouflaged object practically invisible.
Active camouflage has its origins in the diffused lighting camouflage; Active camouflage has developed at a rapid pace with the development of organic light-emitting diodes (OLEDs) and other technologies which allow for images to be projected onto irregularly-shaped surfaces in addition to coatings and panels. With the addition of a camera, an object may not be made completely invisible, but may in theory mimic enough of its surrounding background to avoid detection by the human eye as well as optical sensors. As motion may still be noticeable, an object might not be rendered undetectable under this circumstance but potentially more difficult to hit.
Meta-metal covering
Using Meta-Metal panels and coverings to render an object invisible to conventional radar systems by deflecting the microwaves around the object and restoring them on the other side, as if they had passed through empty space. A "metamaterial" is an artificial composite that can be engineered to produce a desired change in the direction of electromagnetic waves. Radar detectors use microwaves, which bounce off objects, making them apparent and creating a radar signature by 'bending' the waves around a craft; the craft becomes invisible to instruments.
The theory is simple; it behaves like water - water behaves differently. When water in a river flows around a smooth rock, the water closes up on the opposite side. Someone looking at the water downstream would never guess it had passed around an obstacle. For a more technical explanation, This "cloak" guides electromagnetic waves around a central region so that any object at all can be placed in that region and will not disturb the electromagnetic fields. A metamaterial "cloak" can be manufactured to wrap around a fighter plane or a ship, or even a tank but it will not render an object invisible from visible light but can be used to shield from microwaves and hide objects from terahertz waves. A regime that is being exploited for numerous modern sensing technologies, or even from mobile phone frequencies and magnetic fields.
Radar cross Section reduction technology
Radar avoidance technology has been employed for a number of years on aircraft and starting to make the leap over to navel ships such as the "Sea shadow" and is still a part of Cerberus. Using advanced algorithms to process the data received by radar's, such as Bayesian particle filter methods to create angular surfaces and the internal construction. Behind the skin of an aircraft or ship are structures known as re-entrant triangles; Radar waves penetrating the skin of the aircraft get trapped in these structures, bouncing off the internal faces and losing energy so they can't report to there station the detection.
Planform alignment is also used in the Cerberus stealth design. Planform alignment involves using a small number of surface orientations in the shape of the structure. For example, on the F-22A Raptor, the leading edges of the wing and the tail surfaces are set at the same angle. Careful inspection shows that many small structures, such as the air intake bypass doors and the air-refuelling aperture also use the same angles. The effect of Planform alignment is to return a radar signal in a very specific direction away from the radar emitter rather than returning a diffuse signal detectable at many angles; the addition of Radar absorbent paint also helps add stealth to the craft
Infrared and heat ablation technology
An exhaust plume contributes a significant infrared (IR) signature. to reduce this cool air is deliberately injected into the exhaust flow. To achieve infrared stealth, the exhaust gas is cooled to the temperatures where the brightest wavelengths it radiates on are absorbed by atmospheric carbon dioxide and water vapour, dramatically reducing the infrared visibility of the exhaust plume. In addition to this to reduce the exhaust temperature coolant fluids are circulated such as fuel inside the exhaust pipe, where the fuel tanks serve as heat sinks cooled by the flow of air along the wings.
Advanced Sound Suppression
Using state of the art sound suppression technology to greatly reduce aircraft sound; a number of different silencing technologies are used. Firstly a geometric array of sound suppression elements attached to the engines; each of said elements comprises an inner sound absorptive pad around which is wrapped a sound transmissible cloth. Said elements being spaced a minimum of 3 inches and a maximum of 6 inches apart from each other to allow the greatest amount of noise from the engines to be transmitted through the sound transmissible cloth and be reduced in the sound absorptive pads of the array.
The elements of which are covered by a perforated metal covering to allow transmissions of noise into the elements while protecting the elements from high velocity jet engine exhaust. The sound absorptive pad is fibreglass, and the sound transmissible cloth is comprised of felted thermoplastic fibre's of 85% solution dyed polypropylene fibre's mixed and felted with 15% of polyethylene fibre's.
In addition to this the system incorporates a sound deadening system that sends out sound waves that are in anti-phase to the sound created by the vehicle from micro speakers. This is difficult to do and has to be tailored and calibrated for each engine though reduces overall sound by up to 85% while moving at maximum velocity and almost silent if it stays under 250kph
Reduced Emissions Technology (RET)
By using passive infrared and "low light level TV" sensor systems to aim its weapons and an advanced LPI radar which can illuminate enemy units without triggering a radar warning receiver response; the Stalker greatly reduces outgoing emissions that can be detected by enemy radar. A secondary feature is to use other assets like Spy Satellites and GPS or even other units nearby as spotters that relay information via satellite over a broad area that the Stalker can acquire without breaking stealth profile
Weapons
As a stealth helicopter the stalker has no external pylons so was designed as with limited firepower and surgical strike chopper in mind with combat survivability. The weapons of the Stalker are integrated with the AICFCS to seek and destroy the enemy where needed and return to a stealth profile as quickly as possible. The missile bays are internal and use a Rotary launch system with each bay able to store 8 Missiles, 16 in total of varying types. Either Air to Ground or Air to Air. The internal bays are configured to allow the doors to open enough for one missile to clear the fuselage a second before launch then close again immediately to restore stealth profile.
The under nose of the helicopter boasts an impressive 30mm Recoilless 3 barrelled Auto cannon firing 30 mm diameter x 180mm long shells. The cannon is completely retractable into the fuselage when moving at low speeds or hovering the Cannon can be programmed to lock onto targets moving at set speed. This can be very effective; the gun is also linked directly to the gunners HUD via the "Gun cam" on a gimble mount meaning the gunner can aim the gun by moving his head in a direction and has a 50 degree kill arc
The Stalker is capable of Engaging Ground units (Armour, infantry and vehicles) Naval ships, Submarines, Enemy aircraft (Low Altitude aircraft and helicopters) and Fortifications (structures and gun emplacements)
Brief Technical Specs
Era: Late MT Early PMT
Type: Deep Intruder and Recognisance
Engines: Two Animarnia Defence Industries Turboshaft22X Engines (ADI-TURBO-22X)
Rotor Diameter: 11.9m
Length: 14m
Height: 3.39m
Weight: 3400kg (Empty) 7790kg (Max Take off weight)
Max Speed: 328kph
Service ceiling: 3000m
Rate of Climb: 6.5m/s
Max Range: 1900km
Weapons:
1 x 30mm Recoilless 3 barrelled Auto cannon (30x180mm) (Retractable
16 x Missiles (8 each side)
Systems
Advanced Sound Suppression
Infrared and heat ablation technology
Electronic Countermeasures (ECM)
Aerial Defence Counter Measure (ADCM)
Animarnia Integrated Computer and Fire Control System (AICFCS)
Active Camouflage
Meta-metal covering
Radar cross Section reduction technology
Reduced Emissions Technology (RET)
Production Cost: 60 Million
Export Cost: 72 Million
Production Rights: Not Currently for Sale
AI-DI/RH-02 "Stalker" Deep Intruder and Recognisance Helicopter
http://www.animeonscifi.co.uk//hosted/animarnia/stalkerrh.JPG
History
The Stalker comes from Animarnia Industries as its Second addition to attack helicopters; This time labelled a "Deep Intruder" the Stalker is a stealth designed helicopter to go in deep behind enemy lines, hit hard and then escape or to perform advanced Recognisance for as the vanguard for Ground pounders. Everything about the Stalker is state of the art pushing modern technology to its current limit like never before on a helicopter. Designed by the Project Leader Nicole Hoone; it is the personification of her personality. Inhuman, flawlessly sleek, sexy and soulless - cold as a walk in fridge, Cold as gun.
Propulsion
The Stalker is equipped with Two ADI-Turbo-X22s Engines that provide an astonishing 7000lbs of thrust (3500lbs each) protected by First Generation Self Sealing armour that works against all small arms and up to 20mm Armour Piecing rounds. The Engines can propel the Stalker at up to 250kph (155mph) and still remain almost silent and a maximum safe speed of 328kph (205mph) moving at 6.5 meters per second climb. The ADI X22 Helicopter engines also incorporate 3D Thrust Vectoring for extra Agility and combat manoeuvring. The addition of a "Bust Speed" After burner is able to increase the speed of the craft up to 400kph (250mph) but only for a short time. This is due to the stress this can put on the airframe and the engines, as well as fuel drain so it is not recommended for prolonged use.
A Thrust directional control like those used on the Harrier and JSF are also employed here for faster vertical take off and extra agility by redirecting a portion of the engines to micro thruster. Thus allowing the pilot to put the thrust of the engines in a different direction dramatically altering the direction of the helicopter almost instantly. This split second can mean the difference between taking a hit and the threat missing altogether.
Designed using computer databases, The Stalker redefines the helicopter in terms of power, manoeuvrability, technological sophistication, and materials engineering. The twin turboshaft engines drive an advanced five-blade, bearing-less main rotor, which further enhances high performance and agility in air-to-air combat. The fantail anti-torque tail rotor system lets The Stalker execute amazing manoeuvres near impossible for other helicopters.
Computers & Cockpit Electronics
Animarnia Integrated Computer and Fire Control System (AICFCS)
The Integrated Computer and Fire control system is the true master of project Cerberus using state of the air liquid cooled computer chips for processing battlefield data with precession and speed no human could reach. The heart of Cerberus controls Offensive, Defensive and Navigation systems. Uses a 1024 bit encryption protocol that re-codes every 15 seconds and up links via Satellites to all allied vehicles; aircraft and ships in theatre and uses Secured GPS tracking to track there positions in real time in relative position to the craft. It also links to spy satellites and radar installations to identify and track up to 1000 Simultaneous threats at any one time and inform the pilots of the closest and most dangerous threats to them. The system also reads data from the internal sensor systems and radar to create a full real time realty replication of any given battlefield giving the crew/pilot a distinct advantage for tactical planning. The system also automatically controls all defensive systems and engages them as needed such as the ECM and Point Defence Lasers warning crew of coming threats.
This can all be fed to a Pilot or officers visor/Helmet or to display screens depending on the situation and equipped vehicles giving the crew a full 360-degree display and secure communication.
Display Systems & Avionics
All of the display screens in the cockpit are LCD flat panels and touch screen allowing a wealth of information to be displayed an menus overlay each other as options are selected and shown. The cockpit also has information projected upon it including targeting; and altitude, speed etc all relevant information for both the pilot and the gunner as required
The System also linked to the AICFCS and displays the information into the pilot's visor as a heads up display. The Gunners helmet is linked also but with the addition of a "gun cam" that is linked to the nose mounted 30mm Auto cannon and tracks with the gunners head movement for faster targeting. The one way Visor is made of glare resistant materials so that the pilot can look directly at the sun and not be blinded. Integrating with the AICFCS system means that the onboard computer can conduct advanced tactical analyses of any given situation and project information such as chance of success, and calculate casualties and potential collateral damage as well as pop up nearby threats and highlight mission objectives
All control systems can be used via the LCD displays or via voice command; the Stalker is also fitted with a prototype neural control Interface that uses a neural network to read nerve impulses like normal controls and operate accordingly.
Design
The Stalker is categorised internally as a DI or Deep Intruder meaning it will operate usually alone or in small groups deep behind enemy lines or as advanced Recognisance. It's very stealthy but not necessarily overly powerful but carries enough weaponry to conduct deep surgical strikes.
So the design was important to be protected, fast, silent, stealthy and have combat survivability without sacrificing too much firepower. The main structure is created using genetically engineered Silk worms to create a synthetic alloy called "Silk Steel" which is as playable and light as Aluminium but amazingly strong with a melting point of 5000 Kelvin. Silk steel takes a while to produce from dedicated farms and is not in abundance but is extremely useful and has a high tensile strength. The cockpit is encased with a double layering of silk steel with a sandwich layer of self-sealing materials to provide maximum safety for the pilot and onboard systems. The engines and fuel cells are encased in flame retardant foam to prevent fires from getting out of hand or spreading to the fuselage or cockpit with a 30 minutes firewall breaker between the cockpit and the fuselage.
The glass of the cockpit is duel layered triple reinforced bullet proof so that flying shards or bullets don’t penetrate it with a sandwich layer of silk steel mesh. The sides and bottom of the cockpit are layered with a combination of reinforced Kevlar and Heat Reconstruction materials which when heated to a certain temperature, which all bullets would reach upon impact, it hardens to prevent passage of the bullet and then repairs seals back to its original form. This means that in the unfortunate case a bullet strikes in the same spot twice, it would not be any different than hitting it where it was undamaged.
The Undercarriage and wheels of the helicopter fold up into internal bays to reduce drag and RCS however automated computer control systems drop the undercarriage if the body is damaged beyond 60%. In the Event of a worst case Scenario: - the Rotor blades are blown off using micro explosive packets followed by the cockpit canopy and the Pilot and Gunner are ejected from the helicopter
The Stalker also features re-configurable fault-tolerant digital mission electronics and on-board diagnostics as well as triple-redundant fly-by-wire flight control and simple, remove-and-replace maintenance.
Armour and Defence Systems
The armour of the Stalker is strengthened to be heat resistant and durable; it is also protected against all small arms and can take up to 30mm rounds without puncturing. The Animarnia Defence Department has classified the actual materials and weight of the armour.
The First Layer is a Duel layer of thin silk steel with a sandwich layer of sealing form much like self sealing fuel tanks; the foam ejects from the puncture and oozes over the hole until its sealed. This works on small holes in the armour from dedicated AA guns; Missile damage is impossible to heal due to the sheer amount of damage. The Second layer is a Composite of Tungsten, Titanium and Aluminium to provide protection against heat and bullets. The third layer is Carbon 60, Reinforced with diamond Helix's as the last layer of defence against incoming fire and protect the internal equipment. The armour is surprisingly light for its effectiveness weighing in at just over 6kgs per square meter.
Aerial Defence Counter Measure (ADCM)
Fires off a small cylinder projectile that operates in three parts; the first part generates a large amount of heat equivalent to single fighter engines; giving it a large Infrared profile on enemy radar. The second layer uses advanced sounding technology to create an exceptional amount of sound and emit a large Radar Cross section. The third stage is a Flasher; a very, very bright 2 second light bust to blind anything behind the deploying aircraft. As a secondary layer; the ADCM emits a very powerful Radar pulse; and enough fractal mini lasers to create thousands of targets for laser guided munitions. ADCMS are most commonly used on Aircraft; but can be fitted on ships and land vehicles.
Electronic Countermeasures (ECM)
The ECM Suite is composed of two parts; first is a Radar Jamming system; to jam enemy guidance systems and stop them getting an active lock on the craft. The second part is a high frequency pulse sent out in all directions that fools guidance systems into thinking they've hit there target when they haven't making them explode prematurely
Stealth
The Stalker is designed to be stealthy; with that being its primary defence the Stalker makes use of cutting edge technology and uses a host of stealth systems.
Active Camouflage
Active camouflage or adaptive camouflage, is a group of camouflage technologies, which allow an object to blend into its surroundings by use of panels or coatings capable of altering their appearance, colour, luminance and reflective properties. Active camouflage has the potential to achieve perfect concealment from visual detection.
Active camouflage differs from conventional means of concealment in two important ways. First, it makes the object appear not merely similar to its surroundings, but invisible through the use of perfect mimicry. Second, active camouflage changes the appearance of the object in real time. Ideally, active camouflage mimics nearby objects as well as objects as distant as the horizon. The effect should be similar to looking through a pane of glass, making the camouflaged object practically invisible.
Active camouflage has its origins in the diffused lighting camouflage; Active camouflage has developed at a rapid pace with the development of organic light-emitting diodes (OLEDs) and other technologies which allow for images to be projected onto irregularly-shaped surfaces in addition to coatings and panels. With the addition of a camera, an object may not be made completely invisible, but may in theory mimic enough of its surrounding background to avoid detection by the human eye as well as optical sensors. As motion may still be noticeable, an object might not be rendered undetectable under this circumstance but potentially more difficult to hit.
Meta-metal covering
Using Meta-Metal panels and coverings to render an object invisible to conventional radar systems by deflecting the microwaves around the object and restoring them on the other side, as if they had passed through empty space. A "metamaterial" is an artificial composite that can be engineered to produce a desired change in the direction of electromagnetic waves. Radar detectors use microwaves, which bounce off objects, making them apparent and creating a radar signature by 'bending' the waves around a craft; the craft becomes invisible to instruments.
The theory is simple; it behaves like water - water behaves differently. When water in a river flows around a smooth rock, the water closes up on the opposite side. Someone looking at the water downstream would never guess it had passed around an obstacle. For a more technical explanation, This "cloak" guides electromagnetic waves around a central region so that any object at all can be placed in that region and will not disturb the electromagnetic fields. A metamaterial "cloak" can be manufactured to wrap around a fighter plane or a ship, or even a tank but it will not render an object invisible from visible light but can be used to shield from microwaves and hide objects from terahertz waves. A regime that is being exploited for numerous modern sensing technologies, or even from mobile phone frequencies and magnetic fields.
Radar cross Section reduction technology
Radar avoidance technology has been employed for a number of years on aircraft and starting to make the leap over to navel ships such as the "Sea shadow" and is still a part of Cerberus. Using advanced algorithms to process the data received by radar's, such as Bayesian particle filter methods to create angular surfaces and the internal construction. Behind the skin of an aircraft or ship are structures known as re-entrant triangles; Radar waves penetrating the skin of the aircraft get trapped in these structures, bouncing off the internal faces and losing energy so they can't report to there station the detection.
Planform alignment is also used in the Cerberus stealth design. Planform alignment involves using a small number of surface orientations in the shape of the structure. For example, on the F-22A Raptor, the leading edges of the wing and the tail surfaces are set at the same angle. Careful inspection shows that many small structures, such as the air intake bypass doors and the air-refuelling aperture also use the same angles. The effect of Planform alignment is to return a radar signal in a very specific direction away from the radar emitter rather than returning a diffuse signal detectable at many angles; the addition of Radar absorbent paint also helps add stealth to the craft
Infrared and heat ablation technology
An exhaust plume contributes a significant infrared (IR) signature. to reduce this cool air is deliberately injected into the exhaust flow. To achieve infrared stealth, the exhaust gas is cooled to the temperatures where the brightest wavelengths it radiates on are absorbed by atmospheric carbon dioxide and water vapour, dramatically reducing the infrared visibility of the exhaust plume. In addition to this to reduce the exhaust temperature coolant fluids are circulated such as fuel inside the exhaust pipe, where the fuel tanks serve as heat sinks cooled by the flow of air along the wings.
Advanced Sound Suppression
Using state of the art sound suppression technology to greatly reduce aircraft sound; a number of different silencing technologies are used. Firstly a geometric array of sound suppression elements attached to the engines; each of said elements comprises an inner sound absorptive pad around which is wrapped a sound transmissible cloth. Said elements being spaced a minimum of 3 inches and a maximum of 6 inches apart from each other to allow the greatest amount of noise from the engines to be transmitted through the sound transmissible cloth and be reduced in the sound absorptive pads of the array.
The elements of which are covered by a perforated metal covering to allow transmissions of noise into the elements while protecting the elements from high velocity jet engine exhaust. The sound absorptive pad is fibreglass, and the sound transmissible cloth is comprised of felted thermoplastic fibre's of 85% solution dyed polypropylene fibre's mixed and felted with 15% of polyethylene fibre's.
In addition to this the system incorporates a sound deadening system that sends out sound waves that are in anti-phase to the sound created by the vehicle from micro speakers. This is difficult to do and has to be tailored and calibrated for each engine though reduces overall sound by up to 85% while moving at maximum velocity and almost silent if it stays under 250kph
Reduced Emissions Technology (RET)
By using passive infrared and "low light level TV" sensor systems to aim its weapons and an advanced LPI radar which can illuminate enemy units without triggering a radar warning receiver response; the Stalker greatly reduces outgoing emissions that can be detected by enemy radar. A secondary feature is to use other assets like Spy Satellites and GPS or even other units nearby as spotters that relay information via satellite over a broad area that the Stalker can acquire without breaking stealth profile
Weapons
As a stealth helicopter the stalker has no external pylons so was designed as with limited firepower and surgical strike chopper in mind with combat survivability. The weapons of the Stalker are integrated with the AICFCS to seek and destroy the enemy where needed and return to a stealth profile as quickly as possible. The missile bays are internal and use a Rotary launch system with each bay able to store 8 Missiles, 16 in total of varying types. Either Air to Ground or Air to Air. The internal bays are configured to allow the doors to open enough for one missile to clear the fuselage a second before launch then close again immediately to restore stealth profile.
The under nose of the helicopter boasts an impressive 30mm Recoilless 3 barrelled Auto cannon firing 30 mm diameter x 180mm long shells. The cannon is completely retractable into the fuselage when moving at low speeds or hovering the Cannon can be programmed to lock onto targets moving at set speed. This can be very effective; the gun is also linked directly to the gunners HUD via the "Gun cam" on a gimble mount meaning the gunner can aim the gun by moving his head in a direction and has a 50 degree kill arc
The Stalker is capable of Engaging Ground units (Armour, infantry and vehicles) Naval ships, Submarines, Enemy aircraft (Low Altitude aircraft and helicopters) and Fortifications (structures and gun emplacements)
Brief Technical Specs
Era: Late MT Early PMT
Type: Deep Intruder and Recognisance
Engines: Two Animarnia Defence Industries Turboshaft22X Engines (ADI-TURBO-22X)
Rotor Diameter: 11.9m
Length: 14m
Height: 3.39m
Weight: 3400kg (Empty) 7790kg (Max Take off weight)
Max Speed: 328kph
Service ceiling: 3000m
Rate of Climb: 6.5m/s
Max Range: 1900km
Weapons:
1 x 30mm Recoilless 3 barrelled Auto cannon (30x180mm) (Retractable
16 x Missiles (8 each side)
Systems
Advanced Sound Suppression
Infrared and heat ablation technology
Electronic Countermeasures (ECM)
Aerial Defence Counter Measure (ADCM)
Animarnia Integrated Computer and Fire Control System (AICFCS)
Active Camouflage
Meta-metal covering
Radar cross Section reduction technology
Reduced Emissions Technology (RET)
Production Cost: 60 Million
Export Cost: 72 Million
Production Rights: Not Currently for Sale