Stated as for SAR, but would also be militarily useful as military interest in the high Arctic continues to grow.
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Russia researching on 600-ton ekranoplan for missions in Arctic and Pacific
A report from Izvestia says Russia is researching on a new ekranoplan – aka ground effect vehicle – that can perform rescue missions and resupply remote bases in Arctic and Pacific. The project is given the code-name Rescuer and will be handled by Alekseyev Central Hydrofoil Design Bureau, which in the past produce ground effect vehicles such as Lun and Orlenok.
The vehicle is expected to weigh 600 tons with a length of 93 meters and wing span of 71 meters. It will be able to operate on land as well. Top speed is 550 km/h. Scaled models have completed wind tunnel testing and the timeline to complete the project is 2025.