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Ka-27

The Kamov Ka-27 is a military helicopter developed for the Soviet Navy, and currently in service in Russia, Ukraine, Vietnam, South Korea, People's Republic of China, Republic of China and India. Variants include the Ka-29 assault transport, the Ka-28 downgraded export version, and the Ka-32 for civilian use.

 

Design and development

The helicopter was developed for ferrying and anti-submarine warfare. Design work began in 1970 and the first prototype flew in 1973. It was intended to replace the decade-old Kamov Ka-25, and is similar in appearance to its predecessor due to the requirements of fitting in the same hangar space. Like other Kamov military helicopters it has a co-axial rotor, removing the need for a tail rotor.

 

General characteristics

Crew: 1-3, plus 2-3 specialists

Length: 11.30 m (37 ft 1 in)

Rotor diameter: 15.80 m (51 ft 10 in)

Height: 5.50 m (18 ft 1 in)

Empty weight: 6,500 kg (14,300 lb)

Loaded weight: 11,000 kg (24,200 lb)

Useful load: 4,000 kg (8,800 lb)

Max. takeoff weight: 12,000 kg (26,400 lb)

Powerplant: 2 × Isotov turboshaft engines, 1,660 kW (2,225 shp) each

 

Performance

Maximum speed: 270 km/h (145 knots, 166 mph)

Cruise speed: 205 km/h (110 knots, 126 mph)

Range: 980 km (530 nm, 605 mi)

Service ceiling: 5,000 m (16,400 ft)

 

Armament

1 × torpedoes (AT-1M, VTT-1, UMGT-1 Orlan, APR-2 Yastreb) or 36 RGB-NM & RGB-NM-1 sonobouys