NationStates Jolt Archive


F-41A/B Multi-Role STOVL Fighter

Soviet Bloc
27-11-2004, 20:41
F-41A/B Multi-Role STOVL Aircraft



The F-41 Short Take Off and Vertical Landing aircraft was developed exclusively for The Island of Rose, although it will be put into use in ARSB inventories as well. The F-41A/B will fight alongside its 'cousin,' the F/A-91A/B aircraft, a conventional take-off aircraft designed for the Air Force and Navy. The F-41A/B will primarily serve with the ARSB Marines and with the Army as a close air support aircraft. Some of the aircraft will be placed on the Navy's newer light carriers and be positioned with Air Force forward operating bases, primarily in the Buechorian Theatre of Operations (BTO).

The aircraft employs a lift-fan/direct thrust hybrid STOVL system. This provides exceptional reliability while still providing plenty of thrust to lift the aircraft and its full weapons compliment into the air with no trouble. Couple that with the awesome SB-APDE-ATF-502SDE pulse-detonation/turbofan hybrid engine and you have one hell of a winning combination. And with a munition payload unrivaled by its competitors, along with advanced computers, targetting systems, and countermeasures, this is a truly amazing aicraft.

Permission was acquired from The Island of Rose to sell the F-41A/B.




Engine

The F-41 utilizes a single ARSB-developed advanced SB-APDE-ATF-502SDE pulse-detonation/turbofan hybrid engine which gives the F-41 unmatched speed and maneuverability for a STOVL aircraft. The massive engine, coupled with the ARSB's advanced turbine system and the ARSB's Advanced Three-Dimensional AQT-80 Vectored Thrust system which can vector the engine's massive amount of thrust at angles up to 80 degrees and using enough speed to complete a full 160 degree conversion in about three seconds, meaning this aircraft can do full S-maneuvers without losing speed, control, or stability. The engine can put out an amazing 44,000 pounds of thrust which can propel this aircraft to speeds of Mach 2.2.


Lift System

The F-41AB employs a hybrid lift system. The initial portion of the system is the JX-ERT50-A2 lift fan system, which rests in an armored area behind the cockpit. The JX-ERT50-A2 is connected to the SB-APDE-ATF-502SDE PD/TF engine through a variable drive shaft connected to an automated infinitely variable transmission complete with voluntary hydraulic assist. This provides the bulk of lift for the aircraft when performing vertical landings. The main engine’s exhaust, as a three-dimensional vectored thrust system, provides rear lift or forward movement abilities with its Power On Demand feature. Off-shooting from the main engine into the wings are two jet exhaust vents with rotating nozzles on the end, these perform roll operations and allow the aircraft to turn in flight. Additional ducts and nozzles are located to the rear of the engine and provide yaw capabilities. A small supplementary jet in front allows the pilot to nose up or nose down, meaning the pilot can engage targets while hovering.



Design

The F-41 was designed with aerodynamics, stealth, and control in mind. Her modified wing structure gives her unparalleled lift and control possibilities (especially required for STOVL operations and forward theatre deployment). Her overall design is of one that creates little resistance, not so much as in the aerodynamic ‘view’ but in the theory of combining air flows, therefore minimizing rearwards turbulence which can negatively affect performance. Her lines and structure create as little turbulence as possible, much less than most modern aircraft.

Another major design feature was stealth. Her body combines curves and angles to create a very small RCS. Combine this with an extensive fourth generation radar-absorbent material coating, and her RCS rivals that of a small insect.




Weaponry

Being chiefly designed as a STOVL multi-role aircraft, the F-41 was primarily developed to maintain and use air to air munitions of medium to close range type along with ground attack weaponry from guided missiles to guided and unguided bombs. It has numerous hard-points for weapons to be mounted on including wingtips, three hard-points underneath each wing, and three hard-points underneath the fuselage. Four more hard-points are located within recessed berths in the aircraft’s fuselage.

To aid in aerodynamics and in stealth, each outer hard-point (except wingtip) can be encased in an angular ‘bubble’ which would cover the weapon and ‘blend’ it into the wing structure, reducing overall RCS (at least improving on what it would have been) and aiding in aerodynamics and flight abilities.

The F-41 also maintains a single 30mm advanced chain gun which uses a small ALMRS/TTAC-03Mk II firing solution computer to track targets in a small cone in front of the weapon. This cannon system, the ACST-30 System, uses the computer to utilize information from the aircraft's radar and other sensors to track an aircraft in front of the F-41 in a small cone that radiates outwards. The ACST-30 is mounted in a semi-sealed 'bubble' underneath the aircraft and can maneuver inside this bubble to fire on enemy aircraft. This means that the F-41 only has to point its nose in a general direction while its cannon moves and locks onto the aircraft then opens fire either on its own or by the pilot's control.

This cannon can also target and fire upon ground units. Another feature is the ability for it to be fired not by itself or by the pilot, but can also be fired by anyone with access to the ARSB’s Global Defense Net (GDN) (this system can be shut down per commanding officer’s request or by the pilot; therefore, it is not always active).


Systems (Avionics and Weapons)

The ARC/MSR-41 is the central targetting, tracking, and firing solution computer and branches out into the following other subsystems:

SB-AIRCST-15S which is the ARSB-developed Infrared Search and Track system. This system scans the entire area and at ranges up to 60 km for any heat signature. When a signature is found, the system tracks the target and provides the weapons computer a firing solution, then a missile can be fired and that missile's own guidance system can take over and steer the missile to its target or it can receive updates from the aircraft's computer.

SB-OLT-91 this is a small ‘passive light sensor’ which detects obstructions (dark spots and at a miniscule scale) during daylight missions and compares it to a known database. It also redirects other systems to the ‘spot’ in order to target and/or identify it. It has multiple settings from very fine (can spot a bird at 5 km) to coarse (basically aiding in visual sight [looking to the rear, above, below, whatever.]).

SB-AMRQ/R14D is the F-41’s advanced short range composite ID radar coupled with ASRQ/L11 look-down ground attack radar

SB-AMRQ/R72 is the F-41’s advanced electronically scanned array multi-function radar

ARC-597 computer system is the F-41’s tracking portion of the ARC/MSR-41 computer package. Using the IRST and the AMRQ/R72 radar (as well as all other radar systems on board), this system can track nearly three-hundred (300) targets at ranges of nearly 300 km. This powerful system can also bring firing solutions on up to 50 targets in a 100km range depending on the range of the missile and can also identify up to 20 of those targets. The ARC-597 can also identify target headings and trajectories at the farthest range and display them inside the pilot's helmet or on the advanced deep HUD.

MSR-41: This portion of the package is the main targetting computer. It can actively target nearly one hundred of the tracked objects that the ARC-597 is tracking and can bring up firing solutions on 50 of them at once and fire on up to six simultaneously. This system also relies on the IRST and the radar to provide up to date target information for it to process and turn into firing solutions.

AHVDS- The Advanced Helmet-mounted Visual Display system is a three-visor system mounted on the pilot and weapon officer's helmets. One visor folds over the left eye and displays target information as well has current speed, heading, weapons selected, a small forward-facing radar screen cut, and altitude. The second visor folds over the right eye and displays weapon information, fuel, ammunition, lock-on variables, displays arrows to show where enemy fighters are and display a chevron over an enemy fighter when its locked on. The third visor covers the entire face and can track targets across the visor, it displays other information the two smaller visors don't. A fourth visor is the basic sun-visor. But, when the sun-visor is down, the three information-displaing visors change brightness to where the information is easy to read in the darker conditions.

ADVSCAD- Advanced Deep Visual Scan Canopy Awareness Display System- This system is a series of projectors located through-out the cockpit that project data onto the canopy in a seemingly ‘deep’ environment. Using known faults in the human eye, the system projects data that seems out in the air surrounding the canopy, when in reality it is on the canopy glass. This system shows targeting information, enemy whereabouts, heading information, aircraft information, battle information, command information, radar information, and others. It is fully configurable and can be modified to suit pilot needs or requests.


AMS/MC-MS3: This system links together the motor controls in the wings, aileroins, tail, canards, and the thrust vectoring into one system (also includes the control nozzles that are used in vertical landing procedures). Combined, these control surfaces make the F-41 so maneuverable it's almost hard to believe, even when moving at incredibly slow speeds (such as short take off or vertical landings). This system also links them with fiber optic cable technology and advanced servo systems to provide smooth, precise handling and quick response to commands, making this fighter so smooth and agile to operate, a trainee who's flown a trainer jet could hop in one of these and seem like he's been flying it for years.


Armor

The F-41 is outfitted with an extensive, lightweight armor underneath the radar-absorbant materials and frame. Most of the armor is provided by using honeycombed kevlar and epoxy resin with a layer of extremely dense plastic threads, capable of stalling some anti-aircraft rounds and absorbing many pieces of shrapnel. This is supplemented with carbon fiber plates which assist in resistance. The aircraft also uses many new alloys and composites including Titanium Carbonate (CO3) and pure titanium to provide tensile strength in extreme maneuvers and/or crashes.


Crew Survivability

The aircraft maintains a single SB-ASEV-41A ejection seats that meets all ARSB standards for safe operation and has three activation points: between the crewmember's legs, just under the seat; one to the right of the crewmember, next to the seat; and two located behind the crewmember's head.


The cockpit area is armor protected and strengthened. The entire cockpit is also sealed and pressurized, with heated, breathable air running freely from onboard air tanks. The aircraft can recycle its own air and carries an onboard supply of fourteen hours of oxygen.



Countermeasures/Wave Cancellation

The F-41 maintains a single electronic countermeasures system (the AFFC/SIRR-12) which is an active radar cancellation system and utilizes a small radar dome underneath the aircraft to locate the incoming radar pulses of a radar-guided missile, it then fires its own radar pulses at a set frequency and size (determined from the missile's radar pulses). This confuses the enemy radar (by canceling out its own waves) and usually causes it to believe that it has reached its target, it then explodes... This system is networked with five panels of radar emitters facing forward, to the right, left, rear, and to the ground and can project the cancellation waves against most radar-emitting sources (it even works on ground radar). It works by canceling out the radar wave, meaning the station that sent the wave will never notice a ‘black spot’ or any type of return as the wave is cancelled out. The small ‘pod’ with the system in it is the active anti-missile portion of the system. The panels are the anti-ground radar portion. The anti-missile portion also doubles as to cancel aircraft radar as well.

The secondary portion of this countermeasures suite is its short computer jamming system which can jam radars at their computer core and infrared systems. This is accomplished by using a localized microwave emitter located in the same ‘pod’. The emitter fires an intense, but short pulse of microwaves which would strike the missile and effectively ‘melt’ the circuitry as well as royally fuck up anything made of metal.


The F-41 has three types of disposable countermeasures, numbers listed in ( ) :

Flares- infrared countermeasure (26)

Chaff pods- radar countermeasure (22)

Electrical Disturbance pods- creates a surge of electricity in an area and can mess up a missile's computer (4)



Other

This aircraft has an air-refueling nozzle for boom-type refueling, located behind the canopy.





http://www.aeronautics.ru/nws001/lfi002.jpg
*Naval Version- Note increase wing area (rounded areas)


http://www.aircraftdesign.com/ngaf.jpg
*Air Force Version (F-41A)






Specifications

Role: Advanced STOVL Multi-Role Aircraft
Crew: 1
Length: 47.50 ft. (F-41A); 51.00 ft. (F-41B)
Wingspan: 35.00 ft. (F-41A); 37.50 ft. (F-41B)
Height: 14.23 ft. (Both Variants)

Empty Weight: 24,000 lb. (F-41A); 25,900 lb. (F-41B)
Maximum Weight: 53,000 lb. (Both Variants)
Fuel Weight: 15,000 lb. (F-41A); 17,100 lb. (F-41B)
Armament Weight: 14,000 lb. (F-41A); 10,000 lb. (F-41B)

Powerplant: 1x SB-APDE-ATF-502SDE pulse-detonation/turbofan hybrid engine
Maximum Thrust: 44,117 lbs per engine
Maximum Speed: Mach 2.2
Cruise: Mach 1.4

Initial Climb Rate: 38,000 ft/min
Service Ceiling: 76,650 ft.
Range: 900nm (combat); 2,100nm (ferry)
G-Limits: -3 / +8

Weapons: Two wingtip hard-points, three hard-points underneath each wing, three fuselage hard-points, four internal hardpoints TOTAL HARDPOINTS= 15
1x SB-AGX-30 30mm cannon with 350 rounds of ammunition
Total armament weight that can be carried: 14,000 pounds (F-41A variant)


Cost-

F-41A: $70 Million USD [Air Force Variant: Designed for STOVL operations with all-weather capability]
F-41B (Naval Variant): $83 Million USD [Designed for short take off and carrier landings, strengthened frame, more fuel, enhanced radar, protective coating]


OOC- Comments? Criticism?
Doomingsland
27-11-2004, 20:43
Once again, we are very impressed with the genious of the Soviet Bloc engineers. We would like to purchase 500 of each varient.
Soviet Bloc
27-11-2004, 21:55
Doomingsland, your order has been confirmed. The 1000 total aircraft will be built and shipped over the next 14 years. We thank you for the order and hope you enjoy the aircraft.
Colerica
27-11-2004, 21:58
The United Empire of Colerica wishes to purchase 200 hundred of these, (100 of each varient).

Regards,

Ariss Mortaun
Magistrate of Finance

Xevven Jericho
Magistrate of War

Maderic Thra
Emperor

EDIT: Sorry about that.....
Soviet Bloc
27-11-2004, 22:18
Colerica, your order for 200 aircraft has been confirmed. At best estimates, your order will take between three and four years. Thank you for the order, enjoy the aircraft.