Kamow Ka-26
| Kamow Ka-26 | |
|---|---|
.jpg) Passenger version of the Kamow Ka-26 |
|
| Type: | Multipurpose helicopter |
| Design country: | |
| Manufacturer: | |
| First flight: |
August 18, 1965 |
| Commissioning: |
1969 |
| Production time: |
1969 to 1985 |
| Number of pieces: |
816 |
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The Kamow Ka-26 ( Russian Камов Ка-26 , NATO code name " Hoodlum ", German Ganove, Trolch ) is a multi-purpose helicopter with a coaxial rotor from the Soviet manufacturer Kamow , which flew for the first time in 1965 and was produced until 1985.
history
Development of the Ka-26 began in 1962. Aeroflot was required to have a light, civil, multi-purpose helicopter, mainly for agricultural purposes. Kamow solved the multi-purpose requirement with a detachable cargo cabin behind the two-seater cockpit: Depending on requirements, the machine can be equipped with a cargo cabin, a passenger cabin, an open load platform, crane gear or containers for chemicals or water for agricultural flights or fire fighting. An ambulance version has a cabin for two beds and three seats for medical personnel.
The first flight took place on August 18, 1965. Series production began in 1968 and the first series model started on November 4, 1969. In total, around 816 Ka-26s were built in the Ufa state aircraft factory until series production was discontinued in 1985 , 257 of which were exported to 15 countries.
With the Kamow Ka-226 , a successor with turbine drive was created.
technology
The use of simple 9-cylinder radial engines of the type M-14W-26 is noteworthy , although at that time gas turbines were already predominantly used in Soviet helicopters. These are arranged in gondolas on both sides of the gear platform and drive the two three-bladed rotors of the coaxial design that has been tried and tested at Kamow. The air cooling is adjustable with circular compartments on the front of the engines. The fuel is petrol FOK 78. The three tanks (one large and two smaller ones) are located behind the pilot's seats. A full tank of fuel is enough for around 4.5 hours of flight time.
At the end of the gear platform there are two tail girders with large end plates (rudder tail) and the horizontal tail between the rudder tail. The landing gear consists of two small, single-tyred wheels at the bow and two large, also single-tyred landing gear legs on both sides under the motor gondolas. There is also the option of equipping the machine with a ski landing gear.
The Ka-26 is considered the first helicopter - before the German Bo 105 - rotor blades from glass fiber composite used. These are more elastic and lighter than the previously used rotors made of aluminum or steel. The propeller cone (rotor diameter) is 13 meters.
The cladding of the two engines and the outer skin of the helicopter and the passenger cabin as well as the front and side windows are also made of plastic.
In the floor of the passenger cabin is about a flap, a spill .
Use in Germany
The Ka-26 was mainly used in Germany in the GDR . Most of the total of 24 copies were delivered between 1970 and 1976 and flown by Interflug in the "Wirtschaftsflug" operation. They were used as agricultural helicopters to combat pests in orchards and forests, and as crane helicopters to electrify the railway network. Further tasks were control and photo flights of industrial plants as well as coastal and environmental monitoring in the Baltic Sea area, for which three Ka-26s were provided with additional sea equipment and inflatable emergency floats. In the area of civil defense , exercises in the localization of nuclear weapon radiation were carried out. After the disaster winter of 1978/79 , a so-called winter chain, consisting of two helicopters, was kept ready for emergency operations during the cold season.
In 1973 the People's Police received the first of a total of three Ka-26s with the registration number DM-VPD . In 1974 the others followed with the marks DM-VPK and DM-VPR . They were equipped with two external loudspeakers and used for traffic monitoring on motorways and transit routes , search flights during searches, control flights at major events and photo flights. During their service time one aircraft each of the Interflug ( DM – SPW ) and the People's Police ( DM – VPD ) crashed in 1976 near Heinersdorf and 1980 near Bad Düben . In the course of the change in the country's knowledge of aircraft, the two remaining Ka-26s were re-registered as DDR – VPK and DDR – VPR . In addition to these helicopters, Mi-2 helicopters were also used by the police squadron from 1983 onwards .
After the fall of the Wall , all of Interflug's Ka-26s were transferred to the newly founded FSB (Flugservice & Development, Berlin) shortly before their liquidation, where they were used for agricultural purposes until spring 1991. They were then given to museums together with the two remaining helicopters of the People's Police. Only three of them were sold to Nigeria in 1993.
Users
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Bulgaria
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German Democratic Republic
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France
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Italy
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Japan
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Nigeria
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Russia
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Soviet Union
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Sri Lanka
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Sweden
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Hungary
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United Kingdom
Technical specifications
| Parameter | Data |
|---|---|
| Rotor diameter | each 13.00 m |
| Rotor area | 133 m² |
| Rotor area loading | 23.5 kg / m² at 3050 kg |
| length | 7.75 m |
| width | 3.64 m |
| height | 4.05 m |
| Cabin interior dimensions (length × width × height) |
1.84 m × 1.25 m × 1.37 m |
| Empty mass |
1950 kg without upgrade -2120 kg with passenger cabin -2150 kg with agricultural container -2000 kg with load platform -2050 kg with crane gear |
| Takeoff mass | maximum 3250 kg -3000 kg with passenger cabin -3050 kg with agricultural container -3000 kg with load platform -3050 kg with crane gear |
| payload | maximum 900 kg -700 kg or 6 people with passenger cabin -800 kg liquid chemicals with agricultural container and spray device -900 kg chemicals in powder form with agricultural container and dusting device -900 kg with load platform -900 kg external loads with crane gear |
| Engines | two 9-cylinder radial engines Wedenejew M-14 W-26 |
| Starting power | 239 kW (325 PS) each |
| Top speed | 170 km / h |
| Cruising speed | maximum 135–150 km / h, economical 100–110 km / h |
| Service ceiling | 3000 m |
| Range | normal 400 km maximum 1200 km |
| crew | 2 |
| Passengers | 6th |
literature
- Detlef Billig, Manfred Meyer: Airplanes of the GDR. Type book military and civil aviation. Volume II until 1972 . TOM Modellbau, Friedland 2002, ISBN 3-613-02241-9 , p. 138–147 and 186 .
