With respect guys I take a different approach. I do not actually want anymore Protector Class vessels built. I wish the OPV's to put in 10-15 years of hard service and then be paid off. I'm afraid we'll have to do some ad-hoc fleet planning for the next decade or so until we can get into the ANZAC II and OCV programme and get things finally done right. Building another OPV is just exacerbating the problems longer. Which means we need a tried and true MCM/Dive vessel over the short to medium replacement for the Manawanui and the Resolution.
For example the HMCS Summerside and Whitehorse are to be paid off this year as the Kingston Class is drawn down to 10 vessels. Both vessels have a good 15 years of service life ahead and are only as old as the current Anzacs. Not as quick as the IPV/OPV in a patrol pursuit but are good useful small naval ships and can do the survey role as they can be fitted with the high-frequency sidescan sonar towable survey unit. It would at least cover us until the time when the next generation of vessels are to be introduced.
The
Kingston-class MCDV could certainly provide some MCM support to the RNZN, as well as augment both the OPVs and IPVs in a patrol capacity as well. The primary issue as I understand it is that the vessels are somewhat hard on the crew, being fairly small vessels for the areas in which they patrol. To my knowledge, the ocean areas around South Island are similar to areas around Canada so they certainly could serve.
Another possibly candidate (at least for MCM) would be a USN
Osprey-class MHC. I am uncertain if there are any currently available for sale, but the USN has been retiring these vessels early (after 10-15 years of service) and several have been sold to allied nations.
While I do not know exactly how well a MCM fitout would work in a survey role, I would imagine it would be significantly better than trying to kitout an OPV or IPV for that role.
It would also be nice for there to be a somewhat more thought out approach to RNZN purchases/replacements (and the NZDF as a whole as well...) Yes, the Project Protector fleet will certainly help the RNZN regain some lost patrol capability, and maintain some other capabilities, as well as adding a lift component. All together though, between the numbers purchases and their inherent capabilities, the RNZN could have gotten better IMO.
Hopefully the current and future governments will look at what is needed and make appropriate purchases to fill the needs.
-Cheers