Development of the Russian helicopter, the Kamov Ka-31 (NATO Designation: 'Helix-B'), began in 1985; production started in 1998.  Formerly known as the Ka-29RLD, a variant of the Ka-29, the airframe design is based on the Kamov Ka-27.  Equipped with Real Time Kinematic (RTK) surveillance radar equipment, the helicopter is designed to monitor air and sea spaces.  The aircraft radar is within operating range at heights of 1500–3500 meters and can be transmitted to more than 150 km; the antenna panel spans 6 meters and rotates with a scan interval of 10 seconds.

Overview

Data on design, manufacture and status

Design authority: Kamov Design Bureau

Primary manufacturer: Kamov

Parent type: No type defined

Aircraft status: Operational

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Coaxial (x2)

Crew required: 2

Crew seating: Side-by-side

Landing gear: Wheels (all retractable)

Overall Dimensions

Data on aircraft size

Overall Height: 5.60 m (18.4 ft)

Overall Length: 15.90 m (52.2 ft)

Overall Width: 15.90 m (52.2 ft)

Engine Details

Aircraft powerplant (lift and/or propulsion)

Total number of engines: 2

Engine designation: Motor Sich TV3-117VMA turbine

Engine manufacturer: Motor Sich

Take-off / rated power: 1640 kW (2198 hp)

Intermediate power: 1618 kW (2169 hp)

Weights and Performance

Data on aircraft weight and flight characteristics

Max Gross Weight (ground): 12500 kg (27558 lb)

Max Range: 680 km (367 nm)

Max Endurance: 2.5 hrs (2.5 hrs)

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