Ka-27. A photo. History. Characteristics.


Ka-27, which is the codification of NATO codenamed "Spiral" - Soviet multipurpose shipborne helicopter. developed in OKB Kamov in the early 70-ies. Its designer was the founder of the first Nikolay Kamov bureau and finished design SV Mikheev (due to death of NI Kamov in city 1973).

The first flight of the Ka-27, the prototype of which was called «252», held 8.08.1973.

two major modifications were made on the basis of «252» Prototype: ASW Ka-27PL ( «500») and search and rescue Ka-27PS ( «501»).

Ka-27 photo

Ka-27 Purpose is to determine the location of the lesion and submarines, which run at a depth of up to 500 m and a speed of less than 75 km / h. The helicopter can carry out exploration and destruction of enemy targets at a distance of up to 200 km-carrier ship at any time during the simple and severe weather conditions and sea state up to five points.

You can coordinate the actions of the helicopter in the single-player mode or command, interacts with other ships and helicopters. Security of design makes it possible to operate the aircraft at any latitude.

History Ka-27

The prototype helicopter, called «252», was hoisted into the air 8.08.1973.

24.12.1973 - it first held circling.

Serial production of the Ka-launched in 27 1977 in the city of Kumertau. For various reasons and circumstances of the test and rework helicopter lasted 9 years and adopted the Ka-set 27 1981 in April of

5 first mass-produced cars began to perform combat tasks on aircraft carrier "Minsk" in the autumn of the year 1978.

In 1979 the regiment was created by the ship's helicopters based at the airport "Severomorsk-2», compiled of the Ka-27. After a couple of years they have started to be based on all the aircraft carriers 1143 project.

Ka-27 1 photo

At the present time, the Ka-27 stationed on the aircraft carrier "Admiral Kuznetsov", which continues to carry out military service. Exports helicopter was delivered to China, Yugoslavia, India, Syria, called Ka-28.

Design Ka-27

The helicopter has a coaxial structure of the support system. The screws rotate in opposite directions. Ball screw has three blades, which are made of fiberglass and have a titanium sleeve.

The frame of the fuselage girder-stringer class consists of aluminum alloys. In order to achieve directional and longitudinal stability of the tail unit is divided into 2 keel. Keel washers are equipped with unmanageable slats and deployed to the axis of the fuselage toe.

The helicopter Ka-27 installed Four fixed landing gear with swiveling front wheels, which are adjacent elements of the hydraulic system. Thanks to her, you can just lift helicopter for easy access to the cargo compartment. The construction involves the installation of skis.

The structure of the power plant consists of two turboshaft engine TV3-117KM, each of which has a capacity of 2200 hp and gearbox BP-252. During the flight, the rotors have a stable speed. Starting the engine provides auxiliary power unit AI-9.

Ka-27 2 photo

The main energy sources in the helicopter - two three-phase AC generator GT40PCH8B connected with the gearbox BP-252. By the on-board network is connected left the generator, and the right is connected in parallel with it. The output voltage is 200 B.

The helicopter is no direct current generators and the necessary 28,5 in converted from the three-phase AC generator, passing through the UW-6B rectifier device. In the case of generator failure of the energy source in the Ka-27 2 are nickel-cadmium batteries 20NKBN-25U3 and 2 semiconductor static converter PTS-800A current and POS 1000A.

During the emergency landing on the water surface used inflatable ballonets that default containers stacked on each side of the fuselage (buoyancy Ka-27 with the engine off bad). Each has a volume ballonet 5,4 m³ and is inflated by compressed air cylinders with pyrotechnic valves.

The equipment includes a radio compass, autopilot, the data transmission system of the boat explored working in semi-automatic mode.

In Ka-27 envisaged to use a crew of three: pilot, operator systems and anti-navigator coordinator.

Armament Ka-27

The helicopter is equipped with anti-submarine torpedoes AT 1MV, missiles APR-23 and svobodnopadayuschie antisubmarine bombs caliber PLAB 50 and 250 kg. On the right side of the fuselage is the cassette holder CD-2-323, which hung marine backsight Omaboe bomb.

Ka-27 scheme

For the purposes of the definition and guidance on fire them responsible search and sighting unit "Octopus".

The composition of the "Octopus" on-board complex includes:

  • radar, radome in the front part of the fuselage (searches for submarines, which are located above the water surface), transponder beacon;
  • lowerable sonar, which is located in the rear fuselage (determines the coordinates of the detected submarine);
  • the magnetic detector;
  • sonobuoy.

In addition to this equipment, a helicopter dumped radio beacons, markers and smoke generators Omaboe-D.

Ka-27 salon

Range surface target detection in flight at an altitude of 100-500 m is not less than 25 km with 2-point sea state and vessel 8 knots - at least 8 km.

The main features of PPP "Octopus":

  • the use of data-processing machines (onboard computer)
  • availability indicator tactical situation;
  •  the possibility of mutual coordination of helicopters in the complex tactical group;
  • almost complete automation of finding the boat.

Ka-27 equipped with on-board automated system "Drive-SV-board", which amount to ship equipment and navigation system designed for a wide range of tasks on maneuvering and vertoletovozhdeniyu (modes "landing" and "navigation").

Modifications Ka-27

  • Ka-252 - The first prototype deck antisubmarine Ka-27.

  • Ka-252TL - ship telemetry helicopter.

  • Ka-27PL - anti-submarine deck option.

  • Ka-27PS - search and rescue variantvertoleta.

  • Ka-27PSD - Search and Rescue Glider increased flight range.

  • Ka-27REP - test helicopter for jamming.

  • Ka-27E - helicopter performing radiological exploration.

  • Ka-27M - upgraded modification of the Ka-27, which includes radar and tactical command system. It is isolated magnetometer, acoustic, radiorazvedochnuyu system, on-board radar. Radar located under the fuselage and is used to determine the surface, ground and air targets. In 2014 4 year Ka-27PL commissioned by the Russian Navy began to remodel a Ka-27M. Mass production is also planned to start with 2014 years.

  • Ka-28 - export version of the Ka-27, which is characterized by a simplified set of equipment. Today on export is not supplied, and sent to the Russian Air Force needs.

  • Ka-29 - transport-combat option. Production is not established at the present time.

  • Ka-32 - Helicopter Civil Aviation, which operated not only by Russian airlines, but also Canada, Malaysia, South Korea and Switzerland.


Ka-27 characteristics:

Modification   Ka-27
Diameter of the main rotor, m   15.90
Length m   12.25
Height, m   5.40
Width, m   3.80
Weight, kg empty   6100
Weight, kg normal takeoff   10600
Weight, kg maximum takeoff   12000
engine's type   2 GTD Klimov TV3-117КМ
Power, hp   X 2 2225
Maximum speed km / h   291
Cruising speed, km / h   250
Ferry range, km   1000
Combat range, km   760
The duration of the flight, ch.min   3.30
Combat range, km   200
Practical ceiling, m   5000
Static ceiling, m   3500
Crew   2-3
Payload:   Operator 3 or Passenger 3 or 4000 kg of cargo in the cab or 5000 kg on the suspension
 Combat load - 800 kg in weapons compartment
Armament:   Typical load - 2 anti-submarine torpedoes and / or depth charges.
 It is possible to install 2 PKR or 2 PU NUR.



Ka-27. Gallery.

Ka-27 on the runway landing in the oceanKa-27 before takeoffKa-27 landing

Ka-27 helicopter schemeKa-27 after takeoffKa-27 in flight

Ka-27 after landing in the oceanKa-27 model side viewKa-27 photo Side

Ka-27 after flightKa-27 prepares for flightKa-27 model photo



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