Ka-29. A photo. History. Characteristics.
Since x-70 and 80-ies, it became necessary to increase the military capabilities for the Navy of the USSR. In 1973, the OKB Kamov received a request to create a new helicopter widely used. Deputy designer S. Fomin was appointed in charge of the new project. The documents of this helicopter was called as "product 502», and in the armed forces - the Ka-29. An instance created on the basis of anti-Ka-27. To help Fomin was appointed lead designer G. Danilochkina and C. Mikheev - EDO designer. The first flight was made in the year in July 1976 test pilot E. Laryushin. Mass production began at the aviation plant in Kumertau.
Ka-29 is calculated on the full support of airborne troops, it can also destroy ground and surface targets. In addition, an important function of the helicopter itself is considered an opportunity to carry a live military force or special cargo from land to the ships and vice versa. The first BBC, available to the Ka-29 (up to four helicopters) were "Mitrofan Moskalenko," "Alexander Nikolaev" and "Ivan Rogov". At the stern and the bow were constructed helipads.
In Ka-27 were taken the main part of the fuselage, gearbox, rotor system, control system, landing gear, fuel supply systems and energy, as well as navigation and flight systems. A copy of the improved radio set "Eucalyptus" and the ARC-UD.
The structure of the helicopter crew consists of two people: the pilot and the navigator-operator. They are placed next to each other in the cockpit, exceeding the size of the base unit to 500 mm and the presence of the caliber armor 7,62 mm. Also armor plates mounted on the hood of pumps regulators engines TVZ-117VMA. All armor pulls on 350 kg total weight. Fuel tanks are filled with polyurethane foam, which eliminates the possibility of an explosion, and the walls - a specialized puncture-proof tires, protecting tanks from leaking (with lumbago). Screen-engine exhaust mechanisms capable of protecting from heat helicopter missiles.
Armed helicopter controls system VCS-252, on the dash-mounted TSA 17VK (scope for the application of the NAR, container weapons and guns). The department co-driver-operator is present SNPs used for detection purposes and the use of anti-tank. The pilot is responsible for the control of the helicopter and actions fixed types of weapons, and the navigator has been vertoletovozhdeniem, guided missiles and mobile machine gun.
Among the many ways to use the Ka-29 are two main: transport and combat. Transport option includes chetyrehstvolny gun (caliber 7,62 mm), which is hidden in a special embrasure. Equipped with a cabin carries up to 16 paratroopers in full armor, or four stretchers with the wounded, or seven seater. Also inside you can carry small loads of up to 2000 kg, and on the external sling loads are increased twice (cargo size is not important). Among other things, in some versions present a rescue winch.
Battle variant Ka-29 designed to conduct combat operations, maneuvers and perform complex tasks. Support for infantry and heavy equipment at the expense of guided and unguided missiles, gunnery and bombing armament. Container type of weapons mounted on the outer blanks holders (4 pieces) truss. Location symmetrical. On the left side is set 2A42 gun (caliber 30 mm).
Since the principal place of helicopter based on the ship, its size coaxial have been minimized, and the rotor blades are designed for the folding mechanism. There is a specially designed chassis for landing on the deck of a rocking ship, folded HB blades meet the dimensions of the airframe.
It Kamov Design Bureau in the Soviet Union established the first helicopter to the presence of weapons against both marine and terrestrial against opponents. According TTZ firepower of the helicopter had to meet the combat Mi-24V. As a result of the work of Ka-29 in many ways ahead of the opponent. For example, elementary 2A42 gun mounted on a helicopter, showed themselves more effectively against large-caliber machine gun YAKB-12.7 Mi-24V.
High accuracy with shots of weapons provided by the simplified piloting technique and the low level of vibration. It coaxial rotor helicopter aviation platform has enabled the placement and use of a laser rangefinder with the sight axis.
Mostly Ka-Mi exceeds 29-24, which is not surprising, since the coaxial scheme pulls the whole power of the engine to work rotor, which creates a lifting force. Simultaneously with this process, the reactive moments are mutually balanced. The result is that the potential costs to compensate for reactive power torque is completely absent. But on the single-rotor machine the proportion of engine power goes to the tail rotor drive. Power costs - 12%. At Mi-24 they are not accompanied by the creation of the thrust of the main rotor. Efficiency Ka-29 25% to more.
Also coaxial scheme provides low vibration levels. This is due to the summation of the oscillation of the lower and upper screws. Maximum amplitude of vibration coincides with the minimum of one another.
Greater precision in the Ka-29 is provided as follows: the movement of the control handle results in a slope of the swash (AP), which are connected by traction and permanent change in alignment of the blades. The result is a common vector of entire aerodynamic forces of the two screws, which deviates in the right direction and to the desired value. Reactive moments screw completely balanced, and the projection of forces in the upper and lower screws are equal in magnitude. Aerodynamic symmetry coaxial ensures steadiness reactive moments and a lack of the tail rotor.
When deviations occur pedal differential movement of the upper and lower pitch propellers, which creates a different torsional moments and reactive. Simultaneously with this process deviate guides the vertical tail rudder in the tail. Differential mechanism makes installation angles of the blades increase by a screw, and the other - to decrease. The overall thrust remains unchanged.
Symmetrical Ka-29 in aerodynamic terms during a combat maneuver in the hanging or moving state slightly depends on the wind or other weather conditions. This ability to just a positive influence on landing or taking off from the deck of a moving ship.
This unit is the first Soviet helicopter, which is able to make the flat (foot) spread over the entire range of flight speeds. The helicopter is able to quickly take the right position to attack and not to lose its accuracy.
Existing modification Ka-29
- Ka-252TB - the first prototype.
- Ka-29 - serial helicopter with transport and combat use.
- Ka-29VPNTSU - designed for special operations, helicopter-pointer.
- Ka-31 - AEW helicopter, also known as Ka-27RLD.
|Diameter of the main rotor, m||15.90|
|Weight, empty kg||5520|
|Weight, kg normal take-off||11000|
|Weight, kg maximum take-off||11500|
|engine's type||2 TBG Klimov TV3-117VK|
|power, kWt||X 2 1660|
|Maximum speed km / h||280|
|Cruising speed, km / h||230|
|Practical range, km||800|
|Practical ceiling, m||5000|
|Static ceiling, m||3700|
|Payload:||16 4 soldiers or stretchers and seating 6 injured or 2000 kg of cargo in the cabin or 4000 kg suspension|
|Armament:||One 7.62-mm machine gun with ammunition 1800 30 or A242-mm gun with cartridges 250|
|The combat load - 2000 4 kg hardpoints|
|2h4 ATGM Sturm, to 80 80-mm C-8 NUR, or|
|2 23 container-mm gun and ammunition or 250|
|2 napalm tank ST-500.|
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