The RAN will have 8 to 9 major combatants for the next ten plus years.
This number will be the surface option and response for every contingency just beyond the capability of our Capes and equally equiped Six OPVs.
The up-gunning of the OPVs is really about giving them some modest extra capability to deal with some scenarios that are just beyond the capability of the Capes.
It’s about freeing up the majors so they are not wasted doing over kill on some lower to middle end tasking.
In effect it will give us 14 to 15 vessels over the next decade to respond to such scenarios rather than the status quo.
Again no one is trying to turn an OPV into a battleship.
Just as we are not asking an infantry solder to carry a 155mm cannon. Just an upgrade to an assault rifle rather than be restricted to using the issued pistol.
Cheers S
I have a somewhat different take, largely due to how I view the capabilities of the
Cape-class patrol boats as well as the
Arafura-class OPV's.
As I see it, the major capability differences between the two classes of vessel revolve around the range, potential mission endurance and seakeeping of the respective classes. The
Arafura-class OPV's being larger vessels designed for ocean patrolling (blue water as opposed to green/brown water) should be able to safely transit to and patrol longer stretches, particularly of open water. The OPV's likely should also be able to better weather rough seas and storms. Also, due to the greater size and displacement of the OPV's, they could likely safely house/hold a larger number of detainees found aboard SIEV's, illegal/poaching vessels, as well as rescued persons.
However, both the patrol boats and OPV's are patrolling/constab vessels and not combatants or 'fighting' warships. Depending on just what one considers "middle end" tasking either type of vessel might be able to get utilized. OTOH it is quite possible that what one might consider "middle end" taskings could remain something beyond the reasonable capability of either type of vessel.
IMO if such a hypothetical tasking is one that might involve the use of force against AusGov personnel/vessels, then the RAN needs to have capability overmatch. As an example, consider the potential interaction between a Chinese fishing fleet and an Australian Border Force Cutter or RAN vessel. Given the potential threats should there be a clash between an Australian vessel and a Chinese fishing fleet, especially if the fishing fleet is escorted or accompanied by a PRC Coast Guard vessel, then in order for an Australian vessel to even have a chance at reaching force overmatch, it would need to be a major warship. One needs to remember that some of the PRC Coast Guard vessels are ex-PLAN frigates, which even if no longer quite as well armed, could easily still be more than a match for even an up-gunned OPV. OTOH if the "Coast Guard" vessel ended up retaining (or getting re-armed) with some of the typical PLAN weapons fitouts, there would be basically no chance that an OPV could reach the same level of capability much less have capability overmatch.
This then all folds back to just what types of threats does one envision an OPV being potentially 'up-gunned' to make it into a suitable substitute for a RAN major like a frigate or destroyer? Also, what would be realistically required in such upgrades, including the costs in time, money, workforce and yard space?
As I have mentioned before, easy, low cost and modest upgrades, particularly for self-defence systems are things I think would be reasonable and understandable. However, these should really only be done so that an OPV and crew might have a chance of surviving and escaping in the event of a sudden and unexpected attack or outbreak of hostilities. Such upgrades should not be done in an attempt to make the OPV's into something they are not, like being a suitable substitute for a warship.