OCE-1 Chaos

OCE-1 Chaos
Chaos Block IV Standard
Type	Anti-Radiation Missile
Place of origin	Inyursta
Service history
In service	1998–present
Used by	Inyurstan Air Force Inyurstan Army Inyurstan Navy
Production history
Designer	Martel Arms
Designed	1995
Manufacturer	Martel Arms
Produced	1997–present
Specifications
Weight	600 kg (1,320 lb) - 694kg (1,530lb)
Length	3.8 metres (12.5 ft) - 4.6m (16.1ft)
Blast yield	55kg Conical Blast-Fragmentation
Propellant	Solid fuel
Operational range	40km (Block I) 30-100km (Block II & Block III) 200km+ (Block IV)
Speed	Mach 2.1 - Mach 3.5
Guidance system	Passive Radar, with GPS/IMU guidance (Block III & Block IV) and Electro-Optical active (Block III & Block IV).
Accuracy	5m CEP

The OCE-1 Chaos (Ordinance Contre- Emision) is an anti-radiation missile (ARM) in widespread use with the Inyurstan Armed Forces. Finding use in multiple branches of service, it can be launched from aircraft, ground launchers and ships. Secondary targets include small warships and certain aircraft.

History

Following the 1986 Guerroca War, wherein North Guerrocan forces were able to deplete existing Inyurstan stockpiles of foreign-supplied anti-radiation missiles, the Inyurstan military realized the need for an indigenously-produced, readily available weapon to target enemy surface-to-air missiles (SAMs). An open contract was placed between competing firms, open to both indigenous designs and Inyurstan-based production of foreign missiles. However, due to the political climate of the late 1980's and early 1990's - mainly the easing of tensions with formerly hostile Gran Cuscatlan, an increase in cartel violence & renewed Marcon de Rouge offensive, and budget strains - the program was caught in "development hell".

In 1995, the program resumed and a then-simplistic design by Martel Arms was adopted. The missile, dubbed OCE-1, was a 3.8m long missile with a passive-radar homing warhead. It was adopted for service on Inyursta's aging A-4Y and AC/A-83 fleet. When the AC/A-20 Crotaléa came onto the scene, the aircraft platform opened up significant room for advancement of the missiles, resulting in the Block II+ lineage.

During the Lolloh-Ruolnik Conflict, the missile would see prolific combat as the Inyurstan Air Force frequently engaged in repeated games of cat-and-mouse with the air defenses of the Lollohian Army. During this time, several lessons would be learned. The first of which was the need for incorporation of alternate guidance, mainly stationary GPS guidance, to direct the missile into the last-known position of enemy SAMs. In the early years of the conflict, this proved highly effective against static Lollohian SAM batteries. Second, was the need for high-survivability modes. In the face of Ruol Coalition SEAD, DEAD and artillery attacks, the Lollohians invested heavily in point-defense & SHORADS as a means of protecting their primary air-defense positions. This lesson lead to the development of the Block III+ standard; however, these models did not enter service until the final days of the conflict. Third, because Inyurstan Army artillery units were so frequently called in to assist with nearby SEAD & DEAD operations, commanders began expressing the need for a dedicated anti-SAM platform. This led to the development of the Block III OCE-1E-S, Inyursta's first ground-launched ARM.

The missile would again be used in service during the Greco-Bulgarian War... Proliferation OCE-1 variants spawned from this conflict due to the wide variety of SAM types and tactics, often unconventional and experimental, used by Bulgarian forces. Likewise, because Bulgarian anti-air forces were much more mobile, the need for active-tracking fire-&-forget modes became dominant.

Variants

• OCE-1 (Block I): Baseline ARM produced in 1998. 40km range.
• OCE-1A: Improved software integration for a wide variety of aircraft.
• OCE-1B (Block II): Addition of GPS guidance. Entered service in 2005.
• OCE-1C: Software interface upgrade. Range increased to 60km.
• OCE-1E (Block III): Improved propellant increasing range to 100km and speed to Mach 2.9 in terminal descent.
  • OCE-1E-S: Ground-launched version in use with the Inyurstan Army, range reduced to 30km.
  • OCE-1E2:" Upgrade of E-models with secondary electro-optical target for terminal fire & forget capability.
• OCE-1L (Block IV): Modernization standard, including secondary booster and higher frequency discrimination. Range increased to 120km.
  • OCE-1L-S: Ground-launched Block IV upgrade, range of 60km.
• OCE-1M (Block IV+): Ramjet model featuring an estimated range of 300km+, terminal speed of Mach 3.5 and quasi-random maneuvers in the terminal descent.
  • OCE-1M-F: Ramjet model without additional booster, designed to fit in the internal weapons bays of the AC/A-92 Night Adder.

Compatible Platforms

Fixed Wing Jet:

• A-10Y Urutu
• Amérifighter EF-20
• AC/A-92 Night Adder
• Ki-44 Gekko
• A9S Kaizen