The Ka-31 is the naval airborne early warning (AEW) and control variant of the Ka-27 Helix
The Kamov Ka-31 features two sets of 3 bladed main rotors mounted above each other, contra-rotating about a common axis. 
Ka-31 Helix News | |
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Specifications | |
List of Operators of Kamov Ka-31 Helix | |
| From | Organisation with model Ka-31 Helix | |||||
| 2003 |
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| Construction Numbers on database of Ka-31 Helix | ||||||
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Construction Numbers | Help Us | |
| C/N | Year | History | |
| 40-01 |  IN561 | ||
| 40-02 | IN562 | ||
| 40-03 | IN563 | ||
| 40-04 | IN564 | ||
| 40-05 | IN565 | ||
| 40-06 | IN566 | ||
| 40-07 | IN567 | ||
| 40-08 | IN568 | ||
| 40-09 | IN569 | ||
| 41-13 | IN721 | ||
| 41-14 | IN722 | ||
| 41-15 | IN723 | ||
| 41-16 | IN724 | ||
| 41-17 | IN725 |