TBH If NZ were to decide to replace the frigates with more OPV's then the RNZN would lose all relevance since it would no longer be able to operate in anything more hazardous than a constabulary role. Depending on the area in question, even anti-piracy ops could be beyond the RNZN's capability.
Given that the world does seem headed towards more conflict, then it does not seem wise to opt for new/replacement vessels that would be unable to protect themselves against likely threats. A half-dozen OPV's conducting EEZ patrols around NZ is all well and good, but they would be of no help in getting Kiwi goods to the Med or Europe, or getting Euro goods to NZ despite piracy and/or land-based AShM.
I don’t disagree
But defence purchase history does not look favourable for the type of fleet many would desire for NZ going forward.
To flip the question
SEA 3000 is to provide the RAN with a true tier two warship.
A ship that can conduct a response to the broad range of threats in the maritime sphere currently on , under and above the water.
It can conduct an independent response up to a certain level of threat and more realistically be integrated within the protective umbrella of a task force
Entering harms way!!!
I’d suggest this would be the minimum warship size for any nation wanting a true combatant and three would be the minimum number to offer a realistic option to government for a maritime response to a threat.
The question is ,does anyone realistically see NZ committing to three such quality ships fully fitted to spec with no compromise's.
An investment in three such ships , plus the other needs of a balanced Navy.
Plus the needs of Army and Airforce.
I just don’t see it happening, so what’s the realistic alternative???
A repeat of the ANZACs. Two vessels with limited fit out and corresponding limited capacity!!!
I hope not.
Whatever path NZ takes , do it right.
Even if your aspirations are modest.
Hence 5 or 6 good quality ocean going OPVs.
3000t, medium helicopter and hangar with medium calibre canon up front, plus a flexi bay for many roles.
Similar to what many navy’s and coast guards operate
Not a warship,but still a good asset for many roles
Cheers S