CA-18 Maistín

Maistín
Ossorian Maistín
Type	Main battle tank
Place of origin	Ossoria
Service history
In service	2010-Present
Used by	Ossoria
Production history
Designer	Monarcha Ríoga Tanc
Designed	2005-2010
Manufacturer	Monarcha Ríoga Tanc
Produced	2010-present
Specifications
Weight	44 tonnes (standard)
Length	9.49 m
Width	3.24 m
Height	2.30 m
Crew	3 (commander, driver, gunner)
Armor	Nano-crystal steel, modular ceramic composite armor, light-weight upper armor
Main armament	120 mm/44-calibre smoothbore gun with automatic loader (25 rounds)
Secondary armament	12.7 mm machine gun (600 rounds) 6.5 mm coaxial machine gun (4,500 rounds)
Engine	8-cylinder four-stroke diesel engine 1,200 kW (1,200 hp)
Power/weight	27 hp/tonne
Transmission	Continuously variable transmission
Suspension	hydropneumatic suspension
Operational range	500 km
Speed	70 km/h

The CA-18 Maistín (English: Mastiff) is a fourth-generation main battle tank developed by Monarcha Ríoga Tanc in the late 1980s for the Ossorian Armed Forces. It's official designation is Carbad Armúrtha 18 (Armored Chariot 18) and is designated as a Feithicil Marcra Armúrtha (Armored Cavalry Vehicle) or FMA by the Ossorian military. It entered production and service in 1990 and currently sees service with the Royal Ossorian Army, with the Ossorian Royal Guard scheduled to start replacing their fleet of Bocsaeir tanks in 2023.

Design

Armament

The Maistín is armed with a new and improved 120 mm/44-calibre main gun capable of withstanding higher charge pressures compared to the gun equipped to the Bocsaeir and is equipped with 25 rounds, which can include: APFSDS, HEAT, high explosive (HE), smoke, anti-personnel, and illumination rounds. The autoloader can load 14, with an additional 2 rounds stowed behind the gunner, and another 9 housed in a ready ammunition storage compartment for a total of 25 rounds on board.

The secondary armament consists of a 12.7 mm anti-aircraft machine gun (600 rounds) and a 6.5 mm coaxial machine gun (4,500 rounds).

Protection

The Maistín consists of modular sections of composite armor applied to a nanocrystalline steel base armor, providing the ability to mount varying degrees of protection depending on the mission profile and weight requirements. Vehicle weight is 40 tonnes in the base configuration, 44 tonnes in the standard configuration, and 48 tonnes in the fully equipped configuration.

Mobility

The Maistín is powered by a 10-cylinder two-stroke cycle diesel engine providing 1,500 hp (1,120 kW), providing approximately 30 hp/tonne. The hydropneumatic suspension units are mounted on the front and rear pair of road wheels, which can be adjusted on-the-fly to deal with uneven terrain. The maximum quoted road speed of the tank is 70 km/h and it is capable of accelerating from 0-200 m in 20 seconds.

Other features

The Maistín is equipped with a C4I system that can be incorporated into an encrypted network to enable real-time data sharing between other vehicles within the formation, supporting infantry, as well as with rear-area commanders. Alongside the FCS, the system affords the tank's crew the following functions:

• The search range for each vehicle can be specified from the platoon leader's vehicle.
• The detected target is collated with the database and automatically identified, and the distance, position, type, etc. are automatically shared within the platoon.
• It is possible to instruct each vehicle from the platoon leader's vehicle. It is possible to coordinate both concentrated shooting and shooting at individual targets.
• The platoon leader's vehicle automatically knows where and when the vehicle under their command is aiming.
• When aiming, FCS collates with the database and automatically aims at weak points.
• When landing, FCS will judge the effect from the landing position and enemy vehicle type, and if uncertain, it will recommend a re-attack.
• Automatically track multiple detected targets, determine the threat level, and recommend to occupants.

Additional features of the Maistín include:

• A continuously variable transmission that allows the tank to reach 70 km/h forward as well as reverse.
• An autoloader that allows the main gun to fire continuously with an interval of approximately 3.5 seconds.
• Hydropneumatic active suspension which allows it to adjust its stance and absorbs recoil when firing.
• Day/night sights mounted around the turret which provide full 360° coverage as well as input to the C4I system.

Variants and upgrades

• CA-18C1 - baseline production model

Operators

Current Operators

• Royal Ossorian Army

Future Operators

• Ossorian Royal Guard