T90 - russia's main battle tank

The T-90's main armament is the 2A46M 125 mm smoothbore tank gun. This is a highly modified version of the Sprut anti-tank gun, and is the same gun used as the main armament on the T-80-series tanks. It can be replaced without dismantling the inner turret and is capable of firing armour-piercing fin-stabilised discarding sabot (APFSDS), high-explosive anti-tank (HEAT-FS), and high explosive fragmentation (HE-FRAG) ammunition, as well as 9M119M Refleks anti-tank guided missiles. The Refleks missile has semi-automatic laser beam-riding guidance and a tandem hollow-charge HEAT warhead. It has an effective range of 100 m to 6 km, and takes 17.5 seconds to reach maximum range. Refleks can penetrate about 950 millimetres (37 in) of steel armour and can also engage low-flying air targets such as helicopters.
The NSV 12.7mm (12.7×108) remotely controlled anti-aircraft heavy machine gun can be operated from within the tank by the commander and has a range of 2 km and a cyclic rate of fire of 700–800 rounds per minute with 300 rounds available (the NSV was replaced by the Kord heavy machine gun in the late 1990s). The PKMT 7.62mm (7.62×54mmR) coaxial machine gun weighs about 10.5 kg while the ammunition box carries 250 rounds (7,000 rounds carried) and weighs an additional 9.5 kg.
Like other modern Russian tanks the 2A46M in the T-90 is fed by an automatic loader which removes the need for a manual loader in the tank and reduces the crew to 3 (commander, gunner, and driver). The autoloader can carry 22 ready-to-fire rounds in its carousel and can load a round in 5–8 seconds. It has been suggested that the automatic loaders on modern T-90 tanks have been modified to take advantage of newer ammunition such as the 3BM-44M APFSDS, which like the US M829A3 penetrates armour better than the previous shorter rounds. HEAT rounds that can be fired from the 2A46M includes the 3BK21B (with a depleted uranium liner), 3BK29 (with a credited penetration of 800 mm RHA equivalency), and the 3BK29M (with a Triple-tandem charge warhead). Additionally the T-90 features the Ainet fuse setting system which allows the tank to detonate 3OF26 HE-FRAG rounds at a specific distance from the tank as determined by the gunners laser rangefinder, improving its performance against helicopters and infantry. Accurate firing range of the HE-Frag-FS 10 km, APFSDS 4 k
The T-90 is fitted with a "three-tiered" protection system. The first tier is the composite armour in the turret, consisting of basic armour shell with an insert of alternating layers of aluminum and plastics and a controlled deformation section.
The second tier is third generation Kontakt-5 ERA (explosive reactive armour) which significantly degrades the penetrating power of kinetic-energy APFSDS ammunition and also these ERA blocks give the turret its distinctive angled "clam shell" appearance. ERA bricks are also located on the turret roof and provide protection from top-attack weapons. The turret's forward armour package, in addition to the ERA and steel plating, contains a composite filler of Russian composite armour sandwiched between upper and lower steel plates. The composite armour results in a lower weight and improved protection when compared with steel-only armour.
The third tier is a Shtora-1 (Russian: Штора-1 or "curtain" in English) countermeasures suite, produced by Elektromashina of Russia. This system includes two electro-optical/IR "dazzlers" (i.e. active infrared jammer) on the front of the turret (which gives the distinctive "Red Eyes"), four laser warning receivers, two 3D6 'smoke' grenade discharging systems and a computerised control system. The Shtora-1 warns the tank's crew when the tank has been 'painted' by a weapon-guidance laser and allows the crew to slew the turret to face the threat. The infrared jammer, the TShU1-7 EOCMDAS, jams the semiautomatic command to line of sight (SACLOS) guidance system used by some anti-tank guided missiles. The smoke grenades are automatically launched after Shtora detects that it has been painted. The smoke grenades are used to mask the tank from laser rangefinders and designators as well as the optics of other weapons systems. Indian T-90S tanks are not equipped with the Shtora-1 countermeasures suite. They will be equipped with the LEDS-150 Land Electronic Defence System.


compiled by XENOCIDE

Su 34 fullback

Based on the Sukhoi Su-27 'Flanker', the two-seat Su-34 is designed primarily for tactical deployment against ground and naval targets (tactical bombing/attack/interdiction roles, including against small and mobile targets) on solo and group missions in daytime and at night, under favourable and adverse weather conditions and in a hostile environment with counter-fire and EW counter-measures deployed, as well as for aerial reconnaissance .The aircraft shares most of its wing structure, tail, and engine nacelles with the Su-27/Su-30, with canards like the Su-30MKI, Su-33, and Su-27M/35 to increase static instability (higher manoeuvrability) and to reduce trim drag. The aircraft has an entirely new nose and forward fuselage with a cockpit providing side-by-side seating for a crew of two. The Su-34 is powered by a pair of Saturn AL-31FM1 turbofan engines, the same engines used on the Su-27SM; giving the aircraft a maximum speed of Mach 1.8+ when fully loaded When equipped with a full weapons load, the Su-34 has a maximum range of 4,000 kilometres (2,500 mi) without refuelling, this can be extended further via aerial refueling.  When operating at its operational maximum, the airframe can withstand an 'overload' of up to +9G^.
The Su-34 is a three-surface design having both a conventional horizontal tailplane at the rear and a canard foreplane in front of the main wings. The foreplane provides both additional lift (force) and greater manoeuvrability. It has twin tail fins like those of Su-27 from which it is derived. The Su-34 has 12 hardpoints for up to 12,000 kilograms of ordnance, intended to include the latest Russian precision-guided weapons. It retains the Su-27/Su-30's 30 mm GSh-30-1 cannon, and the ability to carry R-77 air-to-air missiles (6 pcs) and R-73 (also 6). The maximum weight of any single munition carried is 4000 kg, with a maximum munitions load the maximum attack range is 250 kilometres (160 mi). A Khibiny Electronic countermeasures (ECM) system is fitted as standard^.
The Su-34's most distinctive feature is the unusually large flight deck. Much of the design work went into crew comfort. The two crew members sit side by side in a large cabin, with the pilot-commander to the left and navigator/operator of weapons to the right in NPP Zvezda K-36dm ejection seats. An advantage of the side by side cockpit is that duplicate instruments are not required for each pilot. Since long missions require comfort, the pressurization system allows operation up to 10,000 metres (32,800 ft) without oxygen masks, which are available for emergencies and combat situations. The crew members have room to stand and move about the cabin during long missions. The space between the seats allows them to lie down in the corridor, if necessary. A galley and toilet are located behind the crew seats. A ladder attached to the nose landing gear and a hatch in the cockpit floor is used to enter the cockpit. The cockpit is a continuous capsule of armour (17 mm) The Helmet Mounted Display System (HMDS) acts as a command center: precision target designation of all onboard weapons is tied to the movement of the pilot's head and eyes.
Maximum detection range for the passive electronically scanned array forward radar is 200–250 km, to cover the rear a second aft-facing radar is mounted.The main radar can simultaneously attack four targets (in the air, on land or on the water). The rear warning radar system can warn of attack from behind and allow it to fire its R-73s against pursuers without needing to turn the aircraft.The rear radar is unofficially called the N-012^. The Su-34 reportedly has a frontal radar cross-section that is an order of magnitude smaller than prior generation fighters.


compiled by XENOCIDE