IAV-56 "Onikuma" Infantry Assault Vehicle
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Description
The IAV-56 program was a joint effort between Marquesan and Anagonian engineers to develop a heavy infantry fighting vehicle for the Confederate Army. This vehicle is designed to engage various tracked and wheeled fighting vehicles. The IAV-56 features an all-welded construction from forged HY-180 steel, annealed in a high-temperature oil bath. Its powerplant is a custom-designed narrow-angle V-8, derived from a 16-cylinder submarine engine, delivering 1,350 horsepower through a 32-speed twin-clutch DSG automatic transmission. The vehicle boasts a thrust-to-weight ratio of 24.1 horsepower per ton fully-loaded, capable of reaching 76.2 km/h on roads with a range of 520 kilometers. It is propelled by tracks in water, driven from the front sprockets, and features an advanced suspension system for superior ride quality.
Codenamed "Onikuma" (demonic bear) during development, the IAV-56 is equipped to transport a squad of 10 into and out of combat, with heavy protection from small arms fire, cannon fire, and armor penetration. Its armament includes a Marquesan-designed 48mm autocannon and hypersonic wire-guided antitank missiles, designed to neutralize both armored vehicles and infantry positions. The vehicle is also fitted with state-of-the-art thermal sensors for enhanced visibility through battlefield obscurants.
Specifications
- Nomenclature: IAV-56 "Onikuma"
- Classification: Infantry Assault Vehicle
- Nation of Origin: Confederate States of Anagonia
- Crew: 3 (Driver, Gunner, Commander) + 10 Soldiers
Construction
| Attribute | Specification |
|---|---|
| Hull Material | All-Welded, Oil-Annealed Forged HY-180 Steel w/ Kevlar Fiberglass & Ceramic Composite Armor |
| Armor Rating | 45mm AP (Frontal Arc), 35mm (Sides & Roof) |
| Unloaded Mass | 36,280 kg (79,984 lbs) |
| Loaded Mass | 56,000 kg (123,459 lbs) |
| Hull Length | 10.12 m (33'2.4") |
| Hull Width | 5.45 m (17'10.6") |
| Hull Height | 2.44 m (8.0') |
| Turret Roof Height | 3.4 m (11'1.9") |
Powerplant
| Attribute | Specification |
|---|---|
| Engine | 1,350 HP (1,000 kW) 45° 39.04L (2,382.5 in³) CP81K Turbodiesel V8, Front/Longitudinal |
| Transmission | CT32DSG Twin-Clutch 32-Speed Automatic (Propelled by tracks in water) |
| Fuel Capacity | 970L, Jet-A (256.25 Gal) |
| Combat Range | 520 km (323 mi) on Land, 90 km (48.6 nmi) on Water |
| Maximum Speeds | 76.2 km/h (47.4 mph - Road), 41.2 km/h (25.6 mph - Off-Road), 23 km/h (12.4 knots - Water) |
Mobility
| Attribute | Specification |
|---|---|
| Suspension | 24x Coil-Over 2.5-ton Hydraulic Suspension Units w/ 2x Nitrogen Gas Charges |
| Tracks | Front-Driven, Rubber Road Pads & Integrated Water Paddles |
| Max. Gradient | 60° |
| Max. Lateral Tilt | 30° |
| Max. Fording Depth | 1.38 m (4'6.3") |
| Max. Trench Width | 3.0 m (9'10") |
| Max. Vertical Obstacle | 4.5 m (14'9.2") |
Sensors
| Attribute | Specification |
|---|---|
| Gunner's Thermal Optic | "Daylight" Color-Corrected Thermal w/ 1-8x Telephoto Zoom |
| Commander's Periscope | 2m (6'6") Telescoping Base w/ 360° Traverse & 88° Elevation, Daylight HD Thermal & 1-8x Telephoto |
| Driver's Optic | M/LWIR (Mid & Long-Wave Infrared) HD CMOS Sensor ("Daylight" Color-Corrected Thermal) |
| Communications | Encrypted Shortwave & Microwave Transmission Antennae |
Gun Armament
- Nomenclature: CSIA-48/47 mle. 2022
- Classification: Automatic Infantry Support Gun (Canon de Soutien d'Infanterie Automatique)
- Nation of Origin: Confederate States of Anagonia
- Caliber: 48x340mm Steelcase (1.88x13.4")
- Barrel Length: 2,256 mm (7'4.8" - L/47 w/ Muzzle Shroud)
- Receiver Length: 2,124 mm (6'11.6")
- Assembled Mass: 500 kg (1,102 lbs)
- Barrel Weight: 136 kg (300 lbs - Quick-Change)
- Rate of Fire: 230 RPM, Select-Feed Automatic
- Elevation & Depression: −9°/+82°
- Traverse Rate: 360° in 6.5 sec @ 55°/sec
- Operation: Roller-Locked Blowback w/ Vertical Sliding-Wedge Breech
- Feed Mechanism: 4-Rd. Revolving Cyl, Selectable 150-Rd Helical Drums
- Ammunition, Type-A: High-Explosive/Incendiary w/ Tracer (HEIT-48)
* Velocity: 715 m/sec (Mach 2.08) * Effective Range: 7,540 m - 13,160 m (4.7 mi - 8.2 mi @ 45° Elevation) * Shell Weight: 4,750 grams (10.47 lbs) * Construction: 280g CL-20/Zr Filler w/ Tracer
- Ammunition, Type-B: Armor Piercer, Spin-Stabilized Discarding Sabot (APSSD-48)
* Velocity: 1,120 m/sec (Mach 3.26) * Effective Range: 3,400 m (2.11 mi) * Construction: Depleted U/Ti, 21x340mm w/ 15mm Meplat * Rod Weight: 1,145 grams (2.52 lbs) * Armor Perforation: 257 mm (10.1" @ 1,000 m)
Missile Armament
- 4x ATW.130R3A "Partizan" Wire-Guided Hypersonic Antitank Missiles [1]