I agree, too many calibres, but what's the way forward?30 & 35 would work too.
30mm for lance turret and ship RWS. 35mm for CIWS, SHORAD.
Either would work for the OPV.
Regards,
Massive
The new Hobart class have 25mm Bushmasters and Phalanx, with the soon to be built Afafura class having the Leonardo Oto Marlin 40 mm.
Suggest not a great thought bubble on these decisions and agree settling on two would be the way forward.
My understanding is the attributes of the Typhoon Busmaster, are low cost ,reliability and no deck penetration.
Its 25mm size always seemed a poor cousin to the 30 mm round, but I guess for constabulary duties only, and some commonality with the in-service ASLAV fleet it made some sense at the time.
So does it have a future for the ADF?
I would prefer not. I feel if we have two small calibre weapons, they most both have a CIWS capability against incoming missiles at least.
This would realistically rule out the bushmaster range, even if up graded to the smart 30 mm rounds.
So do we need a CIWS on the new Arafura class? Well in some ways its academic as it will go with the selected choice of a modern 40 mm system which I feel is an excellent decision for the broad range of contingency's the OPV will encounter. Also it some what future proofs the OPV's for when they may not just be OPV's. Alot may happen in 30 years of service.
It also points to the way forward for a standardised weapon across all our major fleet units. So I would suggest replace all the bushmasters on the Canberra and Hobart class with the Leonardo Oto Marlin 40 mm and also add the 40 mm to the new supply ships and HMAS Choules.
I wonder with its smaller weight compared to Phalanx if at least one system could be added to each of the ANZAC Class ships.
Certainly desirable!
Regarding Phalanx, it is still very much in service with the US and many of her allies including Australia, so while I share many of the concerns regarding its viability for now and the future; it is obviously still the current weapon of choice for the very inner circle of defence and there is probably a reason for that.
Consequently I defer to those who know and have made that decision. I'd suggest additional units will need to be purchased for across the fleet.
Currently 18 large ships
So for me the future is 20mm Phalanx and 40 mm Leonardo.
Get the 40 mm Leonardo mounts sooner than later and install on eight of the Armidale class with the intention to swap them out with each of the Arafura class as they come into service.
Hand the older 25mm Bushmaster over to Boarder Force for their Cape class patrol boats- They are the same size as the Armidales and essentially doing the same job so I see no reason not to up gun them given the duties required.
There is a trend for more robust weaponry on coast guard style ships.
We need that option.
Thoughts
Regards S