Development of the Russian-made Ka-27 (NATO Designation: 'Helix') antisubmarine helicopter began in 1970; series production began in 1977. The helicopter entered service in 1981. Equipped with: radar and sonar for submarine detection; a heated torpedo bay for operation in cold termperatures; flotation bags for water landings.
First flight of the Ka-27 was in 1973.
VTOL type: Helicopter
Lift configuration: Coaxial (x2)
Crew required: 1-3
Crew seating: Side-by-side
Landing gear: Wheels (non-retractable)
Overall Height: 5.40 m (17.7 ft)
Overall Length: 15.90 m (52.2 ft)
Overall Width: 15.90 m (52.2 ft)
Max Gross Weight (ground): 12000 kg (26455 lb)
Max Range: 800 km (432 nm)
Max Endurance: 3.5 hrs (3.5 hrs)