MV4139 Adrasta

FV4139 Aurochs
FV4139 Aurochs Mk.II of the 5th Armoured Division in 2017 pattern field camouflage during CBRNe exercises, Janurary 2017
Type	Main battle tank
Place of origin	Carloso
Service history
In service	1998–present
Production history
Designed	1989–1994
Unit cost	D£4.7 million
Produced	1995–present
Variants	See Variants
Specifications
Weight	67 tonnes
Length	8.33 m (hull length) 11.42 m (gun forward)
Width	3.74 m
Height	3.01 m
Crew	4 (commander, gunner, loader, driver)
Armor	Belfast Level II composite armour on top of triple hardness RHA steel with ERA and NERA modular add-on armour in addition to soft-kill and hard-kill anti-missile defence systems
Main armament	128 mm L512A1 smoothbore gun
Secondary armament	1 × 13.21 mm L486A1 chain gun (1,100 rounds) 1 × 9.5 mm L739A1 coaxial chain gun
Engine	MGED Elektrike liquid-cooled V-12 twin-turbo diesel engine 1,700 hp
Suspension	Hydropneumatic active suspension
Operational range	600 km
Speed	75 km/h

The FV4139 Aurochs is a third-generation main battle tank in service with the Carlosian Armed Forces. Designed and manufactured by Misrias Steelworks as a replacement for the FV37 Tudanca, it currently serves as the primary heavily armoured workhorse of many nations, including Carloso, Brytene, TBA and TBA. Following a similar design philosophy to its predecessor, the FV4139 is optimized for fast-paced manoeuvre warfare, in-line with standard military thinking that a high-cost military conflict could erupt between the state and another major power bloc at any time. It originally started out as a private venture by a team of engineers at Misrias' land weapon systems division, presenting a D£51.3 million ($104.7 million) prototype vehicle to the Department of Defence in 1995 after six years of development. Utilising the latest armour and structural developments, as well as representing a major leap forward for tank design, it was hoped that it would mark the beginning of a thrust forward for the Armed Forces into the 21st century. With ambitious production goals, an initial order of 1,284 tanks for the nation's armoured divisions was placed, worth over D£6 billion ($12.3 billion), with expectations to have all the units built within three years. The expansion of Misrias' facilities to the point that it now owns three of the top ten largest tank factories in the world helped production levels to increase steadily year-on-year, and new Aurochs are still being built and delivered to customers around the world. Most notably, the Confederate Brytisc Fleet, the armed forces of Brytene; one of the Federal Republic's closest allies, have chosen the FV4139 as its primary main battle tank amidst a heated debate on the future of the Brytisc armaments industry.

Essentially, the Aurochs is a radically redesigned follow-on to the FV37, evident in the general shape of the chassis and turret. Despite this though, both tanks share very few interchangeable parts. The Aurochs, specifically the FV4139 Mk.II, is widely considered to be one of the best protected main battle tank in the world, boasting state-of-the-art active protection systems, Belfast Level II composite armour, explosive and non-explosive reactive armour and additional add-on systems to improve survivability. Standard armament includes the autoloaded 128 mm L512A1 smoothbore gun, which is ?? calibres long (? m) and designed to fire a wide variety of munitions, including semi-armour-piercing high-explosive (SAPHE) and armour-piercing fin-stabilized discarding sabot (APFSDS) rounds, as well as the specially developed ??? anti-tank missile. Secondary armament includes a coaxial 9.5 mm L739A1 chain gun and an Arbitrator remote weapon system mounting a 13.21 mm L486A1 chain gun. In earlier models, including the FV4139, instead of the remote weapon system there is a standard crew-served 13.21 mm L???A2 heavy machine gun. On either side of the turret there are five red phosphorus grenade launchers used in smoke-screening. A fully loaded Aurochs usually carries fifty four main gun rounds, 1,100 13.21×??mm rounds and ?,??? 9.5×40mm rounds.

The FV4139 has seen extensive combat experience in Dhechnia, however the most advanced tanks it faced here were export-model T-74S Borov tanks suspected to have been provided by the Ordian government. During the First Dhechnian War, Aurochs, and the then more numerous FV37A5 Tudancas, completely outmatched the Borovs and older T-55s, using almost solely old reserves of SAPHE and HEAT shells to destroy dozens of tanks. Carlosian tanks suffered no losses during the first war, with only a handful of examples being lightly damaged. In the Second Dhechnian War, the surprise attack on Tozny by rebel forces forced crews to abandone atleast one Aurochs in the streets during heavy fire-fighting. FV4139 Mk.1s of the Carlosian Army and FV4139 Mk.1s of the Carlosian Marine Corps were seen participating in the 2016 invasion of Dhechnia by Carloso, alongside Tudancas and various other armoured fighting vehicles. No combat losses have been reported.

Development

Into production

File:FV4132 Auroch in 1995 at Farnham Battle Area.jpg

Pre-production FV4139 Aurochs during testing at Farnham Battle Area, October 1995

Variants

• FV4139 Aurochs Mk.II –
  • FV4139 Woden III – A slightly modified version of the FV4139 Mk.II that was designed to meet the operational requirements set by the Confederate Brytisc Fleet, it differs mainly in armament, retaining the smoothbore tank gun but replacing the remote weapon system's 13.21 mm L486A1 chain gun with an automatic 40 mm grenade launcher and the coaxial 9.5 mm L739A1 chain gun with a 7.62 mm KA-GPMG.

Operators

Current operators

• Carloso