Former Anchor class salvage tug bought to patrol near Greenland and the Faroe Island. It only did one cruise after which it was found that it was infected with fungus to the point where it became uneconomical to repair.
Build in 1961, it was te first purpose build Arctic Patrol Ships build by the RDN and the first ship capable of carrying a helicopter. Originally the Allouette III, replaced in 1980 by the Westland Lynx
The last unit was decommissioned in 1992.
The drawing shows it as it looked after its last upgrade in the late 1980ies.
The Maagen class Arctic Patrol Cutter were the first steel hulled cutters build to sail in Greenland waters. Build in 1960 at Helsingør Shipyard the two ships served almost continually until 1991. In 1964, the 40mm gun was replaced by two 20mm guns, since it was found to be way too big. The 20mm guns also had the advantage of being safer to use since they were mounted on the superstructure rather than the fo'c'sle.
The second ship of the class, Y385 Mammelukken was given to the Estonian Navy in 1995 were it became the A341 Ahti.
I've already drawn the Ahti and the Maagen class between 1961 and 1965, but I forgot to upload them. I'll fix that as soon as I can.
The Barsø class has the honour of being both the longest serving ship in the RDN and the fastest designed. It took a grand total of 6 month from the specifications were given to the finalized design were finished.
The last unit (Y 304 Thurø) was retired only a couple of months ago. By then, it had been in continuous service for 41 years. While there's been older ships in the RDN, all of them has been laid up for longer or shorter periods depending on the defence budget.
In 1972 a slightly modified version of the Barsø class was launched. The only difference was the closed bridgewings. in 1991 Y307 Læsø was rebuild as a diving ship. Of all the units of the Barsø class, only Læsø remain in service.
In 2007 the first replacement of the far more capable Diana class (Mk 2 class) was launched.
Build in 1973, the Agdlek class Arctic Patrol Cutter were build to supplement and later replace the older Maagen Class. Due to lessons learned with the Maagen class, the Agdlek class was both larger, had a more powerful engine and better shelter on the deck as well as a better radar and fully enclosed and heated lookout post.
The last unit of the class, the Y388 Tulugaq is still in service, the other two has been replaced by the even larger and helo capable Knud Rasmussen Class. There's currently a lot of debate whether it too should be replaced by another KR class when it is retired within the next couple of years. Personally, I believe it will, what with the growing importance of the Arctic seas and our recent scuffle with Canada.