BT-5 - highspeed tank

There are 100 m distance from the shore, 15 m depth and water course velocity more than 2 meters per second. The tank stood on its caterpillars with opened hutches and without its crew. A huge burbot lived inside the tank turret. It has gone during the lifting and I reckon it won't be homeless, because there are many other tanks on the Neva river bottom.