https://www.linkedin.com/pulse/opvs-display-pacific-2015-tom-dearling?trk=hp-feed-article-title-like
Summary of OPV at Pacific 2015.
DCNS OPV 75, Saab Flex Patrol, Damen Offshore Patrol 1800 (with no sea axe bow), Fincantieri OPV, DSME Missile corvette
Damen seems to nail it with the 1800, the others are too small, to light, or too corvette. Although the Fincantieri seems to be quite decent, but doesn't seem to have the same amount of flexdeck capability. DCNS could have a more suitable variant on offer as well. I would think Hanger for Helo would be really essential for this type of vessel for the RAN. DSME seems to be a corvette, but its weapons systems could be paired back.
More info released on the replacement AORs. Will commonality with other Spanish-designed RAN vessels give Navantia the edge?
Well that and the RAN has worked with Cantabria for a year, and from what I've heard most found it to be a nice ship. It was also specifically designed with the AWD, LHD in mind. You would have to put them as player to beat.
I don't think 25,000t is too big for a AOR. I thought DSME was one of the successful tenders for the NZ AOR project. IMO the bigger size is one of the key reasons why it might be chosen over the Cantabria.
My only real issue with the Aegir 18A is that it doesn't carry enough JP-5. With the OPV/OCV, Frigates, AWD, the LHD's, the LPD all requiring JP-5 IMO I think lots of people are underestimating how much will be required. It can't for example fill up a Juan Carlos 1 JP-5 stores (800t capacity) from the figures I can see (the Aegir 18A only carries 400t, the Cantabria carries ~1,200t).
Given operationally we may deploy two LHD's, thats 1600t of JP-5 to be replenished on longer missions, you are going to resupply only 25% of its capacity. Now and in the future I see air assets being used more and more by the RAN and allies in a variety of mission (aid, war, war like missions, peace keeping, antipiracy, refugee, disaster, evacuation, etc) and air assets becoming bigger, heavier and thirstier.
Cantibria is design to supply an amphibious fleet including 1 LHD.