I'm going to break up a reply because there was several points, not because I'm angrily bashing away at my keyboard.
OK - So what are your prejudices? Is it a question of affordability?
There is little choice other than the MH-60R. Lighter helicopters that have been marinised are few. A marinised A109 is going to be a poor second choice to a proper design.
But with the MH-60R comes higher purchase costs, high running costs (although supporting a lighter type may end up costing just as much), an additional helicopter type to support (which also would occur with smaller type) and a physically large helicopter that may not be compatible with the OPVs. I would have hoped that with the RAN operating Seahawks for the foreseeable future (that was true even before the MH-60R decision) that the OPV design can at the least land Seahawks even if they can't house them.
Why do you say it might not suit the RNZAF or the RNZN? It is the government that sets policy and decides what, why and how a platform is used.
It has recently been pointed out to me that recent history has had examples of the NZDF presenting a preferred procurement choice that had politicians reaching for their pen to cross it out and inserting a compromised (and cheaper) alternative. You'd know what examples these were, as I really don't.
I mentioned the RNZAF and RNZN because they are the ones who will have work with the result.
The concern expressed by my comments is that NZ will be pressured (whether internally or externally) to compromise requirements or resources in order to satisfy notions of commonality, economies of scale (that often don't eventuate or are one sided), industrial or economic participation, politics (internal or external), or even just good old fashioned schoolyard peer pressure. Frigates aren't just for Christmas, you know, they're for life!
Commonality doesn't have to mean the same platform, or even the same hull. It could just mean that common systems are utilised.
Main and secondary guns, PDMS, combat system could be common, but AU design has more VLS strike-length cells.
I would hope that the next frigate would be a IEP design, so electricity generation could be more flexible regarding diesel/gas combinations.
CEAFAR (or rather its offspring AUSPAR) is modular and can scale in size, so NZ could choose a size to suit its needs. Or even another radar system if AUSPAR is inappropriate to requirements.
AU might want hanger space for two helicopters, and NZ may prefer to have the space for more capable sea-boats.
Or maybe RNZN does want a 7000t frigate, but more GP focused with greater capacity for mission modules, stores or accommodation, or perhaps it would prefer mission endurance (fuel and stores) over higher speeds.
The intent with my comment wasn't to suggest that NZ didn't want a replacement frigate, just that it may not want the
same frigate.
With the policy aims articulated by the current government (and the not inconsiderable brain power of the current CDF who has given us the vision) and its focus post 2020 on amphibious and maritime operations both independently and with the RAN and other allies I would argue that the capability that the Romeo brings less issues for us than problems.
Personally I agree. The MH-60R may be more expensive but other solutions that may look cheaper to purchase and run may turn out more expensive over the life of the helicopter. There really are economies of scale.
But there is no getting around that it would be another small fleet NZ has support, but then that is true of any type selected.
Ideally you want to choose the naval version of the NH90 as the TTH version is entering NZ service. Depending on how much life the Seasprite has, NZ could wait out the NFH development for a more mature version. The RAN doesn't have that option, it
needs the MH-60R soonish.
The last couple of years have seen a turn around in focus and who we work with. Was Kiwi Flag 12 possible 3 years ago? Do we now get invites to RimPac? What about RoKiwi? I think people have to stop looking at the NZDF through the lense of the previous decade and a half.
That only speaks to the outlook of the NZ government and politicians, and not so much about the requirements the RNZN has for the frigate replacement.
As I wrote in my post, a different design with 90% of the capabilities of the RAN Future Frigate may make a third hull very attractive for the NZ government, and a third hull would go a long way to make sustaining deployments and class upgrades much easier. Two was never an ideal number.