The Ka-50 Chernaya Akula (black shark, NATO designation Hokum) was planned as a rival to the Mi-28 Havoc in a competition to provide the Soviet armed forces with a new battlefield attack helicopter. Kamov opted for a single-crew layout to save weight for more amour, more powerful armament, and a greater number of advanced sensors. The first of three V-80 prototypes made its maiden flight on 17 June 1982.
In October 1986 the Ka-50 was selected for production. With the collapse of the Soviet Union, Russia faced military budget cuts. Only about 10 of these helicopters were ever built.
ARMAMENT: Four BD3-UV pylons on wings. Up to 80 S-8 80mm air-to-surface rockets in four underwing B8V20A packs or 20 S-13 122mm rockets in four B-13L pods; or up to 12 9A4172 Vikhr-M (AT-12) tube-launched laser-guided ASMs with range of 8 to 10km capable of penetrating 900mm of reactive armour; or mix of both; Vikhr launched from trainable UPP-800 mounts, which can be depressed to -12°; single-barrel 30mm 2A42 gun on starboard side of fuselage, with up to 470 armour-piercing or high-explosive fragmentation rounds, can be depressed from +3° 30′ to -37° in elevation and traversed from -2° 30′ to +9° in azimuth hydraulically and is kept on target in azimuth by tracker which turns helicopter on its axis; two ammunition boxes in centre-fuselage. Front box contains 240 AP rounds, rear box 230 HE rounds. Selectable rapid (550 to 600 rds/min) or slow (350 rds/min) fire, with bursts of 10 or 20 rounds. Provision for alternative weapons, including UPK-23-250 23mm gun pods, Igla or R-73 (AA-11 ‘Archer’) AAMs. Kh-25MP (AS-12 ‘Kegler’) ARMs, FAB-500 bombs or dispenser weapons.
VIKHR anti-tank guided missiles (ATGM) The missile is designed to engage vital ground targets, including armoured targets fitted out with built-in and add-on explosive reactive armor, at a range of upto 8 km when fired from a helicopter and 10 km when fired from a fixed-wing aircraft in daytime and up to 5 km at night, as well as air targets in conditions of air defense assets activity.
|Warhead||8-12 kg tandem HEAT charge, armor penetration behind ERA, 1,000 mm|
|Proximity and Impact|
|Speed||600m/s, Mach 1.8|
|Laser beam riding|
S-13 122mm rockets pods
Single-barrel 30mm 2A42 gun
The 30mm automatic gun is designed for firing at light armored targets within a distance up to 1500 m, non-armored targets within a distance up to 4000 m and also at low-flying subsonic air targets up to 2000 m within a slant distance of 2500m. The gun can be fired in single shots or in burst (low or high rate of fire). It offers reliable functioning under severe conditions, such as temperature range from +50°C up to -50°C, in rain, dust, frost and in very dry environment.
TECHNICAL DATA OF 2A42
|Number of grooves||16|
|Twist of grooves||715,5 mm|
|Rate of fire||high||min 550 rounds/min|
|Gun weight||115 kg|
|Barrel weight||38,5 kg|
|Recoiling force||40-50 Kn|
|Length of the gun||3 027 mm|
|Voltage of the trigger electric source, contact system||27 +2/-5 V|
|Feeding||Two belt type|
|Recocking||Pyrotechnical or manual|
|Number of powder cartridges||3|
|Force required to cock the gun by hand for:|
|– loading||up to 400 N|
|– re-loading with simultaneous extraction of misfired round||up to 600 N|
2A42 30mm specification source ztsspecial.sk
ACCOMMODATION: Double-wall steel armoured cockpit, able to protect pilot from hits by 20 and 23mm gunfire over ranges as close as 100m. Interior black-painted for use with NVGs. Specially designed Zvezda K-37-800 ejection system, ostensibly for safe ejection at any altitude (actually from 100m); following explosive separation of rotor blades and opening of cockpit roof, pilot is extracted from cockpit by large rocket; alternatively, he can jettison doors and stores before rolling out of cockpit sideways. Associated equipment includes automatic radio beacon, activated during ejection, inflatable liferaft and NAZ 7M survival kit.
Zvezda K-37-800 ejection seat
Instrumentation: Conventional instruments; ILS-31 HUD; moving map display (Kronshtadt Abris on some aircraft); small IT-23MV CRT beneath HUD, with rubber hood, to display only FLIR and monochrome LLLTV imagery. Pilot has Obzor-800 helmet sight effective within ±60° azimuth and from -20 to +45° elevation; when pilot has target centred on HUD, he pushes button to lock sighting and four-channel digital autopilot into one unit. Displays compatible with OVN-1 Skosok NVGs.
Mission: To reduce pilot workload and introduce a degree of low observability, target location and designation are assigned to other aircraft; equipment behind windows in nose includes I-25IV Shkval-V daylight electro-optical search and auto-tracking system, laser marked target seeker and range-finder; FOV ±35° in azimuth +15 to -80° in elevation. FLIR turret to be added in nose for use with NVGs.
Self-defence: L150 Pastel RWR in tailcone, at rear of each wingtip EW pod and under nose; total of 512 chaff/ flare cartridges (in four UV-26 dispensers) in each wingtip pod. L-140 Otklik laser detection system; L-136 Mak IR warning.
|Dimensions and weight|
|Main rotor diameter||14.5 m|
|Weight (empty)||7.8 t|
|Weight (maximum take off)||10.8 t|
|Engines and performance|
|Engines||2 x Klimov TV3-117VK turboshafts|
|Engine power||2 x 2 193 hp|
|Maximum speed||300 km/h|
|Service ceiling||5.5 km|
|Endurance||1 hour 40 minutes|
|Cannon||1 x 30-mm cannon|
|Missiles||16 x 9M120 Vikhr (AT-9 ‘Spiral’) and Vikhr-M (AT-16) anti-tank missiles|
|Other||ungided rockets in place of the AT missiles|
Ka-50N (Nochnoy, or night). The type first flew in 1997 and has a forward-looking infra red (FLIR) turret and mast-mounted radar;
Ka-50Sh (Shar, or sphere). It is another night attack versions, fitted with undernose spherical FLIR turret. The type first flew in 1997;
Ka-50-2 Erdogan export derivative with a two-seat cockpit, fitted with Israeli avionics. It has been offered to China, India and Turkey, but received no production orders;
Ka-52 Alligator (Hokum-B) is a side-by-side two-seat conversion trainer and day/night combat derivative. It also features uprated TV3-117 engines and milimetric-wavelength radar. First flown in production form on 25 June 1997, the type has been ordered for Russian service.
Source: Military Today, Aviastar Org.