The first series-produced icebreaker Sibir was laid down on May 26, 2015. It was floated off on September 22, 2017.
The icebreaker parameters is as follows: length - 172.7 m (160.0 m waterline beam); breadth - 34.0 m (33.0 m waterline beam); height - 15.2 m (sides at midship), 54.0 m (maximum); engines - 2 nuclear reactors RITM-200 of 175 MW each. It is designed to break through 2.8 m thick flat ice at the speed of 1.5-2 knots (3.0 m max). It is biaxial icebreaker that it capable of breaking through thick ocean ice with a deep draft, and with a shallow draft, it can work in riverbeds.
The postage stamp provides image of nuclear-powered icebreakers Sibir against ice scenery and symbols of an atom.
| Paper |
Printing method |
Format of the postal card |
Edition |
| Chalk surfaced |
Offset |
105 × 148 mm |
4 500 pcs. |