The Russian Kamov Ka-27 Helix was designed by the Kamov Design Bureau as an anti-submarine (ASW) and ferry Helicopter for the Soviet Navy in the early 1970's and entered service in 1975. The most unusual feature of the Ka-27 Helix Helicopter is it's twin co-axial counter rotating rotors. Kamov Ka-27 Helix Specifications: - Crew: 1 to 3, plus two or three equipment 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)
- Max takeoff weight: 12,000 kg (26,400 lb)
- Engines: Twin 1,660 kW (2,225 shp) Isotov turbo-shaft engines
- 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: - Two 2000 kg torpedoes (Ka-27)
Avionics: - Radar
- MAD or dipping sonar
- Sonobuoys
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