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Air ForcesRussia

Ka-31 (Helix)

Airborne early warning helicopterFielded 1995Pending verification
Air ForcesRUS
Length 12.5 m
Identification silhouette. Not drawn to scale between entries.
Fact cardConfidence · Source
System
TypeAirborne early warning helicopter
Date of introduction1995
ProliferationAt least 3 countries
Crew2Med[1]
Dimensions and weight
Length12.5 m41 ftMed[1]
Height5.6 m18 ftMed[1]
Flight performance
Engine2 x Klimov TV3-117VMARMed[1]
Speed250 km/h155 mph · 135 ktMed[1]
Range600 km373 mi · 324 nmiMed[1]
Service ceiling3,500 m11,483 ftMed[1]
Endurance2 hours 30 minutesMed[1]
Protection
NBC ProtectionYesMed[1]
Fire control
Surveillance RadarE-801E Oko (eye) surveillance radarMed[1]
Radar Coverage360° coverage and can spot aircraft-size target from 150 km range.Med[1]
Radar, Surface Ship Identification Range100 - 200 kmMed[1]
Radar TargetsRadar can track 30-40 targets simultaneouslyMed[1]
Summary

The Kamov Ka-31 (NATO reporting name 'Helix') is a military helicopter originally developed for the Soviet Navy and currently in service in Russia, China, and India in the naval airborne early warning and control role. As with all Kamov helicopters except the Ka-60/-62 family, the Ka-31 has co-axially mounted contra-rotating main rotors.

Draft entry. Values come from the cited public sources and are awaiting editor verification.
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Operators
ChinaIndiaRussia
Sources
  1. Ka-31 (Helix) Russian Airborne Early Warning Helicopter, U.S. Army TRADOC G-2 Worldwide Equipment Guide (ODIN)
    Published/updated 2026-03-20 · Tier 1 · checked 2026-10-10
Change log
  • 2026-10-10 Entry created from the Worldwide Equipment Guide (ODIN), bulk import