The Kamov Ka-27 (NATO reporting name 'Helix') is a military helicopter developed for the Soviet Navy and currently in service in Russia, Ukraine, Vietnam, South Korea, Portugal, China and India.
The helicopter was developed for ferrying and anti-submarine warfare. Design work began in 1970 and the first prototype flew in 1974. It was intended to replace the decade-old Kamov Ka-25 Hormone 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.
Variants include the Ka-28 for export, the Ka-29 military transport (16 troops), the Ka-31 reconnaissance, and the civilian Ka-32 transport.
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
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)
2 × 2000 kg torpedoes (Ka-27)
1 × 7.62 mm MG, 1 × 30 mm cannon, and 55 mm rocket pods or 4 ATGMs, (Ka-29)
Radar, MAD or dipping sonar, sonobuoys (Ka-27)
RWR, ESM, EW systems (Ka-29)
Algeria: 3 Ka-32T are operated by the Algerian Air Force
Indonesia: Indonesia plan to buy the Ka-32 for non-military purposes (evacuation, search and rescue, cargo and firefighting) and for the Indonesian Police (Polisi Lintas Udara)
Portugal: KA-32. For firefighting use only.
FR Yugoslavia: 2 Ka-28s were in service.
Canada: KA-32 A11 BC for Vancouver Island Helicopters
Switzerland: KA-32 A12 for Helog Heliswiss, KA-32T for Heliswiss
Spain: KA-32 A11 BC for Helisureste