Kamow Ka-25
Kamow Ka-25 | |
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Kamow Ka-25K |
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Type: | Multipurpose helicopter |
Design country: | |
Manufacturer: | |
First flight: |
1961 |
Production time: |
1966 to 1973 |
Number of pieces: |
460 |
The Kamow Ka-25 ( Russian Камов Ка-25 , NATO code name "Hormone" ) was a naval helicopter developed by the Soviet coaxial rotor pioneer Nikolai Ilyich Kamow .
history
In the early 1960s, the Soviet Navy announced the need for new ship-based helicopters for the reconnaissance and combat of submarines .
The OKB Kamow then designed the prototype Kamow Ka-20 (NATO code name "Harp" ) which, like all previous helicopters in this design office, was noticeable for its coaxial rotors . Two three-bladed main rotors rotating in opposite directions rotate on one axis. This configuration eliminates the need for the tail rotor , and the airframe can be made more compact overall, which is an advantage given the usually limited space on ships.
The Ka-20 prototype was first seen in 1961 at the Tushino air parade . It went into production at the end of 1966 as the Ka-25 in the aircraft factory No. 99 in Ulan-Ude . Around 460 units had been built up to 1973, around 250 of which were anti-submarine variants.
Versions
- Ka-25BSch (NATO code name "Hormone-A" ): ASW helicopter was equipped with (NATO code name "Short Horn" ) search radar , sonar buoys and a towed magnetic anomaly detector. Various torpedoes were used as armament , and there was also the theoretical possibility of dropping nuclear depth charges .
- Ka-25Z (NATO code name "Hormone-B" ): Apart from a "Uspech-2A" radar (Успех-2A) and a "Kobalt-2" (Кобальт-2) radio data link, this version had no other armament, and should serve as an advanced observation post to target ship-based long-range cruise missiles such as SS-N-3B, SS-N-12, SS-N-19 and SS-N-22.
- Ka-25PS (NATO code name "Hormone-C" ): Purely transport and SAR helicopter and therefore also unarmed.
- Ka-25K : Civilian crane version with bug gondola for a second pilot who controls the loading / unloading of external loads and a cabin (3.95 × 3.76 × 1.25) for up to twelve passengers. Single copy, was shown in 1967 at the Aerosalon in Le Bourget.
commitment
Soviet Union / Russia : The largest operators were the Soviet naval aviators , where the Ka-25 versions were used as airborne combat, SAR, transport and liaison helicopters. A large number of the ASW helicopter Ka-25BSch have been stationed on the following ships since the mid-1960s: flight deck cruiser " Moskwa " (18), flight deck cruiser "Leningrad" (18), flight deck cruiser " Kiev ", aircraft carrier "Minsk", flight deck cruiser " Novorossiysk ", Flight deck cruiser" Baku ", cruiser" Kresta "class (1 each), cruiser" Kara "class (1 each).
In addition, the Ka-25 was also used from land-based naval bases. It was later replaced by the Ka-29 / 32 on the ships of the Soviet Navy .
The Ka-25s were also exported to Bulgaria , India , Yugoslavia , Syria and Vietnam .
Technical specifications
Parameter | Data |
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Rotor diameter | each 15.74 m |
length | 9.75 m |
height | 5.37 m |
Empty mass | 4765 kg |
Takeoff mass | 12,000 kg |
payload | Max. 2500 kg |
Top speed | 220 km / h |
Cruising speed | 195 km / h |
Service ceiling | 3500 m |
Range | 450 km |
Passengers | Max. 12 |
crew | 2 |
Engines | two Gluschenko GTD-3F helicopter turbines |
power | 660 kW (900 hp) |
Armament
Internal weapon bay
Gun loading up to 1100 kg weapons in the internal weapon bay in the fuselage floor
Torpedoes
- 2 × AT-1 / AT-1M (570 kg torpedo with a diameter of 450 mm)
Unguided depth charges
- 4 × PLAB-250-120- water bombs
- 8 × PLAB-50-64 depth charges
- 48 × PLAB-MK depth charges (7.5 kg suspended in a dispenser box in the shaft)
At external load stations
Gun loading up to 200 kg weapons on a double rack on the left rear side
Unguided bombs
- 2 × OMAB 25-12D marker bombs
- 2 × OMAB-25-18N marker bombs
Web links
- FAS Ka-25 (English)
- Kamov Ka-25 (English)
Individual evidence
- ↑ FliegerRevue November 2011, p. 61, collection series - Kamow Ka-25