|sebu wrote: *||August 29th, 2018, 5:53 pm|
|Eeo wrote: *||August 29th, 2018, 4:26 pm|
No, they're mainly going to be patrolling the Norwegian EEZ which is in the Norwegian and Barents Seas, including around Svalbard where there may be drift ice. Hence the need for ice-strengthening.
I understand, but the previous Nordkapp-class seems to be more capable in ice; though I couldn't find any ice classes of it. This one seem to have ice class of Ice 1A*F (whatever it is...?) Is one Svalbard class OPV enough or is it useless overall?
in the 80's, when Nordkapp class was build, we didn't have a dedicated icebreaker in the Norwegian Coast Guard. Nordkapp class was build on a traditional hull, that are ice-strengthened with capability to do "ice browsing". however Nordkapp class, might be one of the best sea going boat in the Navy, it's the best boat to be on, during a storm. Nordkapp class patrols the Norwegian EEZ, which is in the Norwegian and Barents Seas, including Svalbard.
Jan Mayen class (the new coast guard vessel) have only a ice strengthened hull, it will do the same roll as Nordkapp class. (ICE-1A*F is the same as the Finnish ice IA Super), Since we have now an Ice-breaker in form of Svalbard class, that operate in the ice, we don't need Jan Mayen class to be an ice breaker.
One of the many reason for Svalbard class, was to make Norway present up there, but main mission is to help out scientists that work on the North Pole-ice
Ice Class IA Super, ships whose structural strength in essential areas affecting their ability to
navigate in ice essentially exceeds the requirements of ice class IA and which as regards hull
form and engine output are capable of navigation under difficult ice conditions
Nominal ship equivalencies
Finnish/Swedish (Baltic)Class* ASPPR Class Russian RegisterClass Polar Class
IA Super Type A UL PC6
IA Type B L1 PC7
Russian RegisterClass "UL"
Ice strengthening notation of the ship (independent navigation in the Arctic in summer and autumn in light ice conditions and in the non-arctic freezing seas all the year round)
See page 7, Table 6 DNV GL:
https://www.trafi.fi/filebank/a/1510737 ... elo_EN.pdf
some side info:
https://www.globalsecurity.org/military ... -class.htm