The submarine “Harpao” passed through the ice in Greenland for the first time. The ship was one of very few conventional submarines to operate in such conditions, according to the Navy.
He initially spent 39 hours and 30 minutes deep under the ice. After this first stage, the submarine began operational reconnaissance under the ice. He made natural holes in the slab in case of a possible emergency exit, monitoring the width of the slab and the density of the ice. After completing this last stage, on April 3, the ship returned. rise to the surface safely.
In total, the submarine spent about four days under the ice cover. The ship was also in a marginal ice zone, a place where “no Western submarine has dared to operate since World War II,” the Portuguese Navy said in a statement.
Preparations for Operation Arctic 2024 took almost seven months, which included supporting international navies such as the US Navy through the Arctic Submarine Laboratory (ASL), as well as the Danish and Canadian navies.