Royal Australian Navy Discussions and Updates 2.0

76mmGuns

Active Member
A new design using proven systems is one option, usually ignored, that delivers good results.

A split buy of ASW frigates and destroyers, is another option.

Then again, the Burke is no slouch at ASW. If some of the hybrid electric drive options were employed they would be extremely quiet. That is an electric motor on each shaft is driven by the ships generators at low speed, it was a measure to reduce fuel burn on station but could also be tuned for ASW, as the generators are gas turbines installed higher in the hull.

Japan and South Korea have both developed substantially improved Burke's.
This lack of choice is, imho, a result of the US concurrency debacle, which has caused a quarter century of failed US naval and air hardware outcomes. This has lead to less options available to choose from, less design advancement. Even though Japan and SK have nicely adapted the AB, it's still a 1980's design. You can't turn a 1990's Nokia mobile phone into a 2020's smartphone. This has forced us to look at Europe and others for designs, and their offerings are often not optimal given their much smaller defence budgets. Result? Only 1 choice for modern jets. No options for modern frigates or destroyers from the US. Constellation is just a longer FREMM, which we judged not worthy. So here we are.
 

Bob53

Well-Known Member
The reason I was pointing out cost of 20mm and 30mm ammunition, is to point out that it is a very expensive way to combat drones. At the ranges that phalanx is effective, it would only be capable of engaging munitions fired from big drones, or very small drones with small payloads. In which case , they are more effective and cheaper solutions. If the phalanx was used to engage munitions fired from large drones, well that's what it is for in the first place. ECM maybe the most effective way to counter smaller drones or swarms of them.
We were thinking of different targets. I was thinking of something like the lancet suicidal drone. A drone large that is firing its own missiles well may firing be out of phalanx range and require a ESSM. But as you say ECM or a laser would be better options if available at adequate range, power and speed of target acquisition then the the paradigm shifts again.
 

Bob53

Well-Known Member
When you look at the size of some of some of the next and current generation warships it seems to contradict the claims of the Australian Defence Minister that other navies are opting for smaller ships.
yeah just about choked on my toast when I read that DSR comment from Marles about smaller ships. Wonder what navies he was referring to?
 

Todjaeger

Potstirrer
yeah just about choked on my toast when I read that DSR comment from Marles about smaller ships. Wonder what navies he was referring to?
One thought of mine which has been recurring is that there might be some amongst the policy and decision-makers of AusGov that might be thinking about or attempting some sort of Australian-version of the USN/USMC distributed lethality, which in some respects would explain why such interest in greater numbers of smaller platforms.

Unfortunately though, and not unlike how it seems that portions of Army are to shaped similar to how the USMC is being re-shaped, the entirety of the ADF and Defence is significantly smaller and less capable than the US Armed Forced and DOD+ supporting agencies.
 

Brissy1982

Active Member
When you look at the size of some of some of the next and current generation warships it seems to contradict the claims of the Australian Defence Minister that other navies are opting for smaller ships.

In reality even the smaller ships are getting much bigger. The Type 31 is much larger than the Type 23 and new Constellation class FFGs are bigger than the Oliver Hazard Perry class.

For what it actually is, which is a hybrid ASW/AAW warship, the Hunter is probably about the size you would expect.

From what I have gathered the navy needs a more capable ship than the Arafura. The Arafura is mostly intended to be a constabulary warship and I can see the justification for adding extra capabilities to that ship. However these ships should never be regarded as frontline warships.

The Hunter class on the other hand probably represents the minimum capability you would need from a frontline warship operating in this region. If anything we should be working towards an even more capable design to eventually supersede the Hunter and Hobart classes.
I really hope what Marles said about other navies going for larger numbers of smaller ships was merely an off-the-cuff, off-script remark, though I fear it wasn't. If there is indeed a body of opinion in defence planning circles that larger numbers of smaller ships is the best way to increase the lethality of the surface fleet, I hope the team conducting the review of the surface fleet reaches the opposite conclusion - increased lethality requires a larger number of larger, more capable ships. Hopefully a review team led by a former USN flag officer for whom a ship with "adequate" capabilities means a Burke-class DDG can reach that conclusion, and make recommendations accordingly. Fingers crossed!
 
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StingrayOZ

Super Moderator
Staff member
I really hope what Marles said about other navies going for larger numbers of smaller ships was merely an off-the-cuff, off-script remark, though I fear it wasn't.
Well at the moment, the DSR has been disappointing, and the NR was another unexpected delay to urgent questions. While the government seems firmly committed to AUKUS SSN, the deteriorating global security situation has yet to in any real way make its way felt.

I was hoping we would get a short brief by early Sept, now I hear very late sept to oct before it even concludes and then nothing is confirmed to be announced publically.

Talking about ASW.. I can see Sydney becoming a favorite haunt for the Quad exercises.
 

Bob53

Well-Known Member
USN: Constellation class
RN: Type 31
JMSDF: Mogami

All 5000t+ ships but smaller than Arleigh Bourke, Type 26 and Maya classes respectively.

Never assumed it was a reference to a corvette as that would not make sense for the RAN.

Regards,

Massive
These are not replacing larger ships. In US case it’s instead of substantially smaller LCS. In the RN type 31 replacing the smaller type 23. Not sure what Moganami replace so the statement is a long stretch aimed at uninformed voters and lazy media I expect.
 

swerve

Super Moderator
USN: Constellation class
RN: Type 31
JMSDF: Mogami

All 5000t+ ships but smaller than Arleigh Bourke, Type 26 and Maya classes respectively.

Never assumed it was a reference to a corvette as that would not make sense for the RAN.

Regards,

Massive
And all in addition to bigger ships, not instead of.

The Mogami-class ships will initially replace the five ships of the Abukuma class, which are much smaller, then the Asagiri-class, which are slightly smaller (a bit longer, but slimmer).

Type 31 is replacing the GP Type 23s, which are slightly smaller. The ASW Type 23s are being replaced by Type 26 . . .

Constellation class is replacing the Oliver Hazard Perry class (retired without adequate replacement) & some LCS - both lighter.
 

hauritz

Well-Known Member
One thought of mine which has been recurring is that there might be some amongst the policy and decision-makers of AusGov that might be thinking about or attempting some sort of Australian-version of the USN/USMC distributed lethality, which in some respects would explain why such interest in greater numbers of smaller platforms.

Unfortunately though, and not unlike how it seems that portions of Army are to shaped similar to how the USMC is being re-shaped, the entirety of the ADF and Defence is significantly smaller and less capable than the US Armed Forced and DOD+ supporting agencies.
The changing role of the army might see a diminished role for Australia’s LHDs. I am not sure what role a large amphib would play as far as supporting littoral operations is concerned. I know the USMC is looking at smaller sized amphibs. If, as appears likely, the army goes down the same path they could operate these vessels themselves , which would reduce the role of the navy’s amphibious forces even further. This might also bring in the question the navy’s plans for a pair of JSS.

This could provide the navy with an opportunity to utilise the Canberra class in a more frontline surface combatant role. I won’t say aircraft carrier because I don’t see the funding for that, but I can see a role as a helicopter/UAV/AUV/ASV carrier. Could even be considered as a priority role given that Australia is developing a range of autonomous vehicles and will be operating a significant number of Seahawks.

Possibly the sort of quick fix the navy could acquire before the end of the decade.
 
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alexsa

Super Moderator
Staff member
Verified Defense Pro
This is true, but I would suggest that there is a distinction between a new design that is based on a hull form, compared to trying to make an existing design do something else, which I suspect is the inference in using the Hunters for air defence. Case in point, how good at air defence were the Leopard class, a similar platform to the Leander class? whereas Bristol was significantly larger with a competent anti air armament (for its time).
By all means use the Hunter hull form but lets not try and make the Nascar do Formula 1.
Normally I would agree but in this case the Hunters will already have the sensors, combat system and generation capacity required for the air defence role which is one of the reason the design finalisation took so long. The CEAFAR Radar suite combined with the SAAB 9LV tactical interface and AEGIS/CEC combat system will already make these vessels a potent AAW platform.

If the sole and immidate desire is to increase the cell then evolving the Hunter design of hulls 7 to 9 would probably be quicker than going with a whole new hull as it is reasonable to assume he RAN will not move away from the CEAFAR Radar suite combined with the SAAB 9LV tactical interface and AEGIS/CEC combat system for the next combatant noting the DDG's are being updated to the SAAB 9LV/AEGIS baseline 9 combination.

If you are looking at a whole new 10000 tonne plus DDG design then this could follow on from the Hunters as sufficient time to assess alternatives or to do a clean sheet design would then be possible in the time available. By this time work on follow on from the Burkes and/or the emerging UK large multirole DDG may be beyond the paper stage. If we look at past development process of new hulls this can be a very very long process.
 
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Redlands18

Well-Known Member
The changing role of the army might see a diminished role for Australia’s LHDs. I am not sure what role a large amphib would play as far as supporting littoral operations is concerned. I know the USMC is looking at smaller sized amphibs. If, as appears likely, the army goes down the same path they could operate these vessels themselves , which would reduce the role of the navy’s amphibious forces even further. This might also bring in the question the navy’s plans for a pair of JSS.

This could provide the navy with an opportunity to utilise the Canberra class in a more frontline surface combatant role. I won’t say aircraft carrier because I don’t see the funding for that, but I can see a role as a helicopter/UAV/AUV/ASV carrier. Could even be considered as a priority role given that Australia is developing a range of autonomous vehicles and will be operating a significant number of Seahawks.

Possibly the sort of quick fix the navy could acquire before the end of the decade.
Can't agree with the first statement at all, I see the opposite if anything. Their Command-and-Control facilities are vital for littoral operations, probably as important as the aviation capabilities. They carry a 60 bed Hospital as well. The DSR calls for a larger fleet of Med sized Amphibs acquired quicker than planned but I see these as an adjunct to the current Amphib fleet not as a replacement. There may be tweaks to how the LHDs are used, with maybe a greater use of the aviation capabilities but they would still form the heart of an Amphib operation.
 

hauritz

Well-Known Member
Can't agree with the first statement at all, I see the opposite if anything. Their Command-and-Control facilities are vital for littoral operations, probably as important as the aviation capabilities. They carry a 60 bed Hospital as well. The DSR calls for a larger fleet of Med sized Amphibs acquired quicker than planned but I see these as an adjunct to the current Amphib fleet not as a replacement. There may be tweaks to how the LHDs are used, with maybe a greater use of the aviation capabilities but they would still form the heart of an Amphib operation.
Even the government concedes that the actual structure of the Army in light of the DSR is unclear. We are talking about small teams deployed around the region. The emphisis is that they need to be stealthy and that makes the presence of a 30,000 ton LHD a bit of a liability in my opinion.

 

Stampede

Well-Known Member
Even the government concedes that the actual structure of the Army in light of the DSR is unclear. We are talking about small teams deployed around the region. The emphisis is that they need to be stealthy and that makes the presence of a 30,000 ton LHD a bit of a liability in my opinion.

I don't think any vessel big or small will go into harms way relying just on stealth.
LHD's in my opinion are one of the most useful and flexible bits of kit in the ADF.
They will always be a target because they offer so much.


Smaller amphibious ship for USMC well yes.
Good for them and probably looks like our future landing craft heavy.

Like the USMC a compliment not a replacement for the larger amphibious vessels

Don't see a fire sale of US LHD's any time soon.


Cheers S
 

Stuart M

Well-Known Member
Normally I would agree but in this case the Hunters will already have the sensors, combat system and generation capacity required for the air defence role which is one of the reason the design finalisation took so long. The CEAFAR Radar suite combined with the SAAB 9LV tactical interface and AEGIS/CEC combat system will already make these vessels a potent AAW platform.

If the sole and immidate desire is to increase the cell then evolving the Hunter design of hulls 7 to 9 would probably be quicker than going with a whole new hull as it is reasonable to assume he RAN will not move away from the CEAFAR Radar suite combined with the SAAB 9LV tactical interface and AEGIS/CEC combat system for the next combatant noting the DDG's are being updated to the SAAB 9LV/AEGIS baseline 9 combination.

If you are looking at a whole new 10000 tonne plus DDG design then this could follow on from the Hunters as sufficient time to assess alternatives or to do a clean sheet design would then be possible in the time available. By this time work on follow on from the Burkes and/or the emerging UK large multirole DDG may be beyond the paper stage. If we look at past development process of new hulls this can be a very very long process.
I think that if one wanted to evolve the Hunters design to have a greater AAW capacity it would be better to do so after #9, designing that in would also take a very, very long time and I'd suggest that now would be the time to do so. Of course the key issue, imo, to discuss now is what kind of anti-air warfare capacity does Australia want? Burke levels or something like the Korean Sejong the Great?
 

Bob53

Well-Known Member
I don't think any vessel big or small will go into harms way relying just on stealth.
LHD's in my opinion are one of the most useful and flexible bits of kit in the ADF.
They will always be a target because they offer so much.


Smaller amphibious ship for USMC well yes.
Good for them and probably looks like our future landing craft heavy.

Like the USMC a compliment not a replacement for the larger amphibious vessels

Don't see a fire sale of US LHD's any time soon.


Cheers S
Where are things at with the Future Heavy landing craft? How far of from a selection there and what’s is the number to be acquired!
 

Morgo

Well-Known Member
I think that if one wanted to evolve the Hunters design to have a greater AAW capacity it would be better to do so after #9, designing that in would also take a very, very long time and I'd suggest that now would be the time to do so. Of course the key issue, imo, to discuss now is what kind of anti-air warfare capacity does Australia want? Burke levels or something like the Korean Sejong the Great?
This might be a dumb question, but why? There’s a great big flex space in the middle of the ship that could be replaced by a serious number of VLS if you’re willing to sacrifice it.

Obviously some very important questions about stability that need to be solved, and some complex redesign work to be done, but why would this take more than a couple of years to resolve?

Edit: Adding a link to my previous thoughts on this.

Royal Australian Navy Discussions and Updates 2.0
 
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Todjaeger

Potstirrer
This might be a dumb question, but why? There’s a great big flex space in the middle of the ship that could be replaced by a serious number of VLS if you’re willing to sacrifice it.

Obviously some very important questions about stability that need to be solved, and some complex redesign work to be done, but why would this take more than a couple of years to resolve?
Such a change would likely seriously change a vessel's displacement and very importantly, displacement distribution and CoG, as well as all the potential issues with launching missiles and the requisite clearance and hot gas exhausts.

If one looks at this YouTube video of a model of the Hunter-class for the RAN, what I take to be the flex space is amidships aft of the funnel but forward of the hangar. Without more exacting diagrams or pictures it is hard to determine specifically, but it appears that the bottom of the flex space volume starts below the level of the deck where the Mk 41 VLS is forward, but likely well above the bottom of the Mk41 VLS which IIRC would penetrate something like two decks. It might be possible to replace some of the flex space with a VLS, but that would either require rearranging this because either space currently used beneath the flex space would be needed for penetrating VLS cells, or the whole of the flex space gets used which puts a VLS amidships but well above the waterline. Given the topweight issues experienced with the ANZAC-class frigates, I do not think it a good idea to attempt to shoe-horn a decently sized VLS into such a space. It would be a much better proposition to have a 2nd set of VLS cells put into a dedicated position in a purpose-made design. If one looked at the USN's Arleigh Burke-class DDG's, which do have two sets of VLS cells, one fore and another aft, such positioning makes more sense to me, instead of attempting to launch missiles from amidships between superstructure spaces in used by a vessel.
 

Redlands18

Well-Known Member
Where are things at with the Future Heavy landing craft? How far of from a selection there and what’s is the number to be acquired!
That project wasn't due to start for another 2-3 years at the earliest, so no funding at all nor planning in place. The ADF would have been nowhere near ready to send a formal proposal to Government. Probably didn't even have a project Office up and running in April, and this is not going to be a straightforward project either, it is an Army project (Land 8710 phase 2) but the Australian Army has no current experience in operating a vessel of this size and complexity. The RAN is going to have to be heavily involved in this project, at very least, platform selection and Trg. At the same time, the Army will be introducing a raft of other new capabilities, like MRL, ASuW, SPGs, IFVs, SP ATGW. The RAN, SSNs, OPVs.
The DSR may have recommended that this capability be brought forward, but whether the ADF can do it, is the question.
 
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