Ka 226 and modifications
Mi-2 and Ka-26 serially long time are not made, they complete their life cycle in 2001-2002 due to the complete exhaustion of the resource. Thus, Russia could be left without a light helicopter, which can represent up to 80% of passenger traffic and cargo from the total number that completed the entire fleet of rotary-wing machines. Marketing studies have shown a strong demand for twin-engine version, which is planned to create in the deep modernization of the Ka-26 and Ka-126. Thus, the need for such a helicopter in the next 15 years within the country is estimated at 500-600 copies. According to the opinion of foreign experts, it is expected to sell in the global market could reach 200-300 cars.
That is why the company «Kamov» in the interests of numerous operators in 1990 began designing on the basis of Ka-26 and Ka-126 further twin-engine modifications Ka-226. The helicopter is designed to solve the same problems as his predecessors. Compared to the Ka-126, it can be used in jobs requiring a mandatory machine had two engines as an additional guarantee a high level of safety. Design and construction of the helicopter was carried out in accordance with the national aviation rules AP-29 and us — FAR-29.
The conceptual design and layout took place in 1996, and the construction of the first machine was completed in 1997), the Main customer of the helicopter are MOE, RAO «Gazprom» and the city hall. According to preliminary estimates, the MOE will require 150-200 machines, Gazprom is not less than 100, and Moscow may order medical units to 40-50 helicopters. Not excluded the possibility of using machines in the Armed Forces of the Russian Federation, the Federal border service of Russia, State customs Committee, BMI and other agencies.
Ka-226 retains all design and layout solutions predecessor Ka-26. The change is mainly due to the installation of two modern gas turbine engines, the placement of new equipment and new bearing screws with semi-rigid torsion mount blades. The use of personal bushings HB significantly simplified the design of the bearing system. For example, serial sleeve Ka-26 is 1350 parts, new — contains about 400. Blades with a two-spar and working lining, made of polymer composite materials (PCM), increase cravings HB.
In short, Ka-226, preserving dignity «flying chassis, acquires higher values of fuel efficiency and vehicle performance.
In the near future multipurpose Ka-226 should be the main «workhorse» in Russia. He refers to the machines easy class for up to 9 passengers. In many ways it surpasses the German-French-105 of the same class and is cheaper (1.5 vs 2.5 million dollars).
Foreign helicopter manufacturing companies are trying to penetrate our market and to fill a niche lung rotary-wing vehicles. First In-105, and then BK-117 appeared in the MOE. Could not resist and Gazprom bought the helicopter manufactured in the West. To the credit of the national mass media should include operational negative assessment conducted purchases of Western equipment in contrast to the domestic. For comparison: In-105 and SC-226 below their data.
The fuselage Ka-226 is from the cockpit, the Central compartment, two tail beams and plumage, including the fixed stabilizer with two spaced fins with rudders. Fuselage — beam type elements of aluminum alloys and cell fiberglass panels. Fiberglass is made also of the tail beams, fins and panels transport cabin.
The cockpit is not different in design from the cab predecessors, but became more comfortable with the new equipment, allowing you to pilot a helicopter during the day and at night, in VFR and IFR conditions. The cabin has two energy-absorbing seats for pilot and passenger.
Workplace pilot taking into account ergonomic requirements placed levers of control helicopter, instrument panel, control systems and equipment. The canopy has a large area of glazing that provides a good overview.
Transport removable cabin designed in a way that ensures the installation of energy-absorbing passenger seats (6 or 8), working with the winch in the large door opening with sliding door, loading stretcher through the opening in the back of the cab and carriage of cargo on the external load. The volume transport of the cabin can accommodate two stretchers with an accompanying medical personnel in the variant ambulance and medical evacuation — six stretcher with the injured.
In the interests of operators Kamov has developed different ways to use a helicopter. For MES-rescue, medical, patrol, for Moscow — ambulance, police, fire, emergency and rescue services, passenger. In the interests of Gazprom variants are created with the installation of equipment for production and environmental monitoring and control of pipelines, aerial photography.
Rescue option for MES includes winch lifting capacity of 300 kg, located on the left side, the container with rescue equipment (to starboard), hands-free system, and spotlight. The aircraft carries a nine rescuers.
Sanitary Ka-226 is equipped with the necessary medical equipment. The cabin can accommodate two patients on stretchers and a pair of accompanying paramedics. In other embodiments, application for special tasks helicopter can be equipped with television, radar, infrared equipment, and other systems.
Conversion base model (without transport cab) in any variant is produced by removing part of the equipment and installation of additional equipment purpose. Removable equipment, depending on the destination machine, attached to a docking nodes located on the Central power fifth frame forward fuselage, tail beams and main bearings of the chassis.
Outwardly unchanged compared to the Ka-26, left four-leg chassis. System brake control wheels — pneumatic. However, its design has been amended to increase the intensity of the shock absorbing bars, simplification of individual elements, excluding dampers lateral movements and reducing the mass of the chassis as a whole.
The power plant of the machine is placed above the Central power compartment and includes a gearbox VR-126 and two TVD modular design «Allison». Capacity four soft fuel tanks — 770 HP Low fuel consumption, provides the flight duration from main tanks to 4,34 h, and more — to 6.45 p.m engine life of 3500 hours Minimum resource in TVD module has turbine generator, but module replacement of any engine takes only 10 minutes
The control system includes standard controls of a helicopter in the workplace, hard thrust, power steering KAU-165 in each of the four control channels and differential 20% autopilot.
Transaction management to the fuel assemblies of the engine, the brake screws and rudders from the steering cable. Automatic control system engines — hydraulic, consists of a pump regulator and regulator of speed of the free turbine. Starting system engine electrical, starter — generator.
Ka-226 has an aerodynamic symmetry and is extremely simple technique of piloting, compared to single-screw In-105, BK-117. Due to the lack of tail rotor Ka-226 is the most secure while maneuvering near obstacles and less sensitive to the magnitude and direction of the wind.
Flat (foot) turn he is able to perform both hover and level flight without restrictions on the size and speed deviations of the pedals, and the flight altitude remains constant. Turns left and right on a static ceiling Ka-226 performs without changing the height that is inaccessible to helicopters with a tail rotor.
Data unique quality coaxial helicopter is particularly important for maneuvering in case of execution of rescue operations at high temperatures, at high barometric altitudes in the mountains where there is no excess capacity of the power unit. Coaxial helicopters is, in truth, a national achievement Russia can be proud of and use for the benefit of citizens.
Flight and navigation equipment base model Ka-226 in its function is similar to the Ka-126. The main difference is the use of more sophisticated instruments, as well as their new layout. For vertoletostroenija using laser curculation LCR-92, automatic direction finder, a barometric altimeter, radio altimeter low altitude.
The flying machine is carried out using a system of electronic display SEI-226, backup Aviagorodok, speed indicator and variometer. In the export version of the Ka-226 can be equipped with on-Board equipment of foreign companies in accordance with the requirements of the customer.
Helicopter and most of its units will be operated on a technical condition without the planned factory overhauls. The assigned resource is 18000 flight hours and calendar life of 25 years.
Special attention Kamov paid after-sales service of machines. Noteworthy is a low level of labor intensity in operational services.
High performance manufacturability and low cost of operation of the apparatus is achieved through maintenance and most of the units on a technical condition. The units basically have the resources with long periods between scheduled periodic work (500 hours). The specific complexity of their maintenance is very small.
The helicopter is distinguished by high reliability of the main aggregates. The expected maintenance cost per flight hour is 235-265 dollars. USA.
Ka-226 first flight was made on 4 September 1997, piloted by its test pilot company «Kamov» V. Lavrov. Program of its creation succeeds and is currently nearing completion. In 2000, Ka-A first batch will arrive in the emergency service of the emergencies Ministry and the municipal aviation Moscow. Is currently undergoing certification testing machine.
Given the large demand for this versatile aircraft, NGO «Boom» in Orenburg) and aviation enterprise Kumape (,Kumertau) started serial production of the Ka-226. In March of this year, head-production sample of the helicopter made the first ascent into the air. At the conclusion of the state Commission, he was successful.
Great support creation software Ka-226 have the government of the Russian Federation, local authorities, government of Moscow and Bashkortostan, the administration of the Orenburg region.
The successful creation of a light multipurpose helicopter depends on the joint efforts of the leading Russian aircraft, as well as desires ministries and regions in the shortest possible time to get a modern and efficient helicopter, made by world standards.
Modification Of The Ka-226
The diameter of the main screw, m 13.00
Height ,m 4.15
normal takeoff 3100
maximum takeoff 3400
Engine type 2 TLD Rolls-Royce Allison 250-С20R/2
runway 2 x 338
cruising 2 x 280
Maximum speed, km/h 220
Cruising speed, km/h 197
The practical range, km 600
The flight duration, h 4.60
The rate of climb, m/min 636
Dynamic ceiling, m 6500
Static ceiling, m 2600
The crew, pers 1-2
Payload: 6 passengers (maximum 8) or 1400 kg of cargo in the cabin or 1300 kg on external suspension
Light multipurpose helicopter Ka-226T with a maximum take-off weight up to 4 tons, designed for special operations in remote high altitude and hot climate and over marine areas by transporting cargo (up to 1500 kg), transportation of passengers and service personnel, patrolling economic zones, monitoring and other tasks without compromising performance and economic characteristics.
The Ka-226T is different from the basic version of the Ka-226 engines Arrius 2G French company Turbomeca. He has the unique for its class characteristics, including practical ceiling that reaches 7500 meters. The speed of the helicopter more than 200 kilometers per hour. On Board can accommodate ten people, including the pilot. Maximum takeoff weight is 3400 pounds, payload — 1450 pounds.
The Arrius engine has a capacity of up to 750 HP For Ka-226 is used at takeoff power of 550 HP and on the CR — 705 HP This engine will be made available under the Ka-226 only part of the software. Arrius has excess capacity and therefore will be useful in regions with a hot climate and high mountains.
Ka-226T inherited from his predecessor Ka-226 best modular design, simple technique of piloting, low vibration, reliability, safety and simplicity of operation.
Rotor blades, the vehicle cabin, the tail is made of polymer composite materials. Chassis four legged, non-retractable. All versions with plug-in modules (transport cargo, medical, passenger is equipped with two emergency exits on the sides and rear opening, a closed double door. The canopy pilots with a large glass area provides a good overview of behind-cabin space.
Pilot seats (enterprise edition «Star») — energy absorbing design, equipped with seat belts. The blade bearing screws provided with the electrothermal de-icing system.
In the system of technical maintenance on the concept of operation of the helicopter «on-condition».
Light multipurpose helicopter Ka-226T, equipped with two engines Turbomeca Arrius, built in 2008, however, the first flight will probably in the beginning of 2009. This opinion was expressed by the chief designer of JSC «Kamov» Leonid Shiryaev.
«Experimental model helicopter Ka-226, converted from a previously built machine, have already flown with installed engines Turbomeca Arrius, and showed on the pre-tests excellent performance, especially on high-altitude flights», he said.
According to the specialist, in mid-2008 was conducted scientific research and experimental design work on the creation of the Ka-226T. Ka-226T will be produced at Kumertau aviation, together with the plant will be built and experienced helicopters. All will be built four prototype that will be released for testing. One of them will be designed for ground tests of transmission and three helicopters for flight tests, said L. Shiryaev. Certification multipurpose helicopter Ka-226T should be completed in 2010.
Modification of the Ka-226T
The diameter of the main screw, m 13.00
Height ,m 4.15
normal takeoff 3200
maximum takeoff 4000
Engine type 2 TLD Turbomeca Arrius 2G
Power, kW 2 x 368
Maximum speed, km/h 200
Cruising speed, km/h 190
The practical range, km 480
The rate of climb, m/min 522
Service ceiling, m 5200
The crew, pers 1-2
Payload: 7 passengers or 1200 kg of cargo in the cabin or 1500 kg on external suspension
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