Norwegian Coast Guard vessel KV Hopen during its visit to Nova Scotia. Port of Sydney photo.

Ran across this photo today on Facebook. It provides a different view of a Jan Mayen class ice strengthened Offshore Patrol Vessel. Pictures taken during construction of  Jan Mayen here.

These are big ships, 9,800 tons standard, 136.4 m (447 ft 6 in), and have hangar space for two medium size helicopters. That is a 57mm gun on the bow. Crew is only 100.