Royal Australian Navy Discussions and Updates

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StingrayOZ

Super Moderator
Staff member
From what I have read, the government has stated that the propulsion systems it is looking at are more modern that AIP. I know it wont be nuclear, but what it will be I have no idea. Does anybody have any ideas, or is it hush hush?
I've tried to work this one out. I don't have a clue. GF seems to have ruled out AIP and nuke (which is a form of AIP) and hints at some new magical advance that will give the subs all you could want.

So that leaves improved storage technologies (Li ion, Zebra, AGM, supercapacitors etc) which don't really offer much/anything over traditional storage, or some new advanced diesel (not Gas turbine either). And there haven't been any significant advances there either. I dunno solar powered submarines? Dismounted power (ie submarine cables?)???? Zero point energy, Farnsworth Fusors?

I don't expect anything revolutionary in terms of propulsion, I would expect a revolution in weapon systems that make the propulsion thing less relevant.

I just wish GF would spell it out. Or drop more hints.

Australia has always had hedging strategies in terms of nuclear power. ANSTO, laser refining, mining capability etc are part of that. We also previously were involved in several missile programs.

But Australia doesn't need Nukes, infact becoming a nuclear weapons owner would not be a good thing for us. We can over come almost any fanciful invader conventionally. It would justify the other locals getting nuclear technology, which would be a very bad thing.

Although RAN subs have never been involved directly in a war where they have sunk an enemy ship, they have seen plenty of "use". The incidences are numerous, and they are doing front line stuff every day that risks equipment and lives.

Except for the UK SSN's (faulklands), you could say every SSN in the world has never seen action.
 

the road runner

Active Member
So that leaves improved storage technologies (Li ion, Zebra, AGM, supercapacitors etc) which don't really offer much/anything over traditional storage, or some new advanced diesel (not Gas turbine either). And there haven't been any significant advances there either. I dunno solar powered submarines? Dismounted power (ie submarine cables?)???? Zero point energy, Farnsworth Fusors?.
I assume that power storage, especially with Li-ion batteries, or newer technoligies, would be part of a more advanced sub design?

I don't expect anything revolutionary in terms of propulsion, I would expect a revolution in weapon systems that make the propulsion thing less relevant.
I would assume some Advances in propulsion tech,maybee Hydrogen or magnetic engines or a form of effecient fuel...

Even power devices that that renew energy from moving parts.

Just speculating AGAIN..

Regards
 

gf0012-aust

Grumpy Old Man
Staff member
Verified Defense Pro
I've tried to work this one out. I don't have a clue. GF seems to have ruled out AIP and nuke (which is a form of AIP) and hints at some new magical advance that will give the subs all you could want.
Nope, I am saying that AIP has been looked at before by RAN, that we have been able to prove that AIP is not critical to how we already employ one of if not the worlds longest ranging conventionals

I'm stating that other techs exist and that they have greater utility and applicability.

I just wish GF would spell it out. Or drop more hints.
Thats not going to happen. :)

1) because I can only tell you what clearly is not being considered (nukes)
2) that all other options are on the table as they get assessed and then removed from consideration (and we still have 5-6 years grace)
3) that nothing will be released to the public
4) that industry has already been told that its not their job to tell Navy what sub and what design they need

etc etc......

you could say every SSN in the world has never seen action.
I think the americans would take issue with that. USS Parche and her sisters would definitely take issue. Parche played inside territorial waters where exposure could have led to war. I think you'll find stories emerge over time how both the US and USSR took it up and where those events were deliberately buried.

bear in mind that subs (certainly in western navies) are on constant footing. its why they have separate independant commands etc.... when compared to other service elements.
In fact subs and special forces are unique in that respect. (and subs are seen as defacto special forces)
 

1805

New Member
Look very simple Germany that knows a thing or two about non nuclear subs (having built over 80 post WW2 and has 40+ on order, says the future is Fuel Cells, I am inclined to agree with them. Now Australia that has build 6 boats with Swedish assistance, and they have had issues? Sweden has also gone down another AIP system (closed cycle??). Just buy the best or customise the best or you will end up like the the poor old RN with c3 subs
 

kato

The Bunker Group
Verified Defense Pro
You mean like Germany (HDW/TKMS) bought the entire Swedish submarine industry (Kockums)? ;)
 

StevoJH

The Bunker Group
Not that this is a propulsion solution but we should be using all our internal surface area as energy storage:

At Stanford, nanotubes + ink + paper = equal instant battery (w/ Video)
Without reading the article, most likely Carbon Nanotube Supercapacitor's. Much higher power densities then batteries, but still with energy densities much too low to make them a possible replacement for traditional batteries in the near future.

Long story short, they can be recharged much quicker then "traditional" batteries because of the increased power density, but on something like a submarine would give nowhere near the endurance underwater.
.....

And after reading the first paragraph or so, yup, super capacitors. I wrote an essay on them for one of my units last semester. :smilie
 

the road runner

Active Member
Look very simple Germany that knows a thing or two about non nuclear subs (having built over 80 post WW2 and has 40+ on order, says the future is Fuel Cells, I am inclined to agree with them. Now Australia that has build 6 boats with Swedish assistance, and they have had issues? Sweden has also gone down another AIP system (closed cycle??). Just buy the best or customise the best or you will end up like the the poor old RN with c3 subs

An issue with selecting an off the shelf solution is that there is no conventional subs with the desired requirements.Australias subs, are very unique.(like Japans subs too)

Your aware that Collins displaces approx 3000 tonnes while a 212 is about 1800 tonnes.
I hope we stay away from 212,they are very good subs,but not the capability Australia seeks.

Regards
 

Todjaeger

Potstirrer
Look very simple Germany that knows a thing or two about non nuclear subs (having built over 80 post WW2 and has 40+ on order, says the future is Fuel Cells, I am inclined to agree with them. Now Australia that has build 6 boats with Swedish assistance, and they have had issues? Sweden has also gone down another AIP system (closed cycle??). Just buy the best or customise the best or you will end up like the the poor old RN with c3 subs
Indeed, Germany (Sweden to a lesser degree too) has a great deal of experience designing and building diesel subs. One needs to remember the environment which the submarines were designed for though. The Swedish subs were essentially designed for Baltic ops, and the German ones seemed to be principally for the Baltic and North Seas.

The RAN (Japan and possibly Canada too) needs long-range, high endurance fleet submarines, capable of potentially transiting the Pacific. To achieve this, the RAN diesels are big, close to twice the displacement of many other diesels and even larger than some of the smaller SSNs.

As for Germany being able to design such a large sub, I am certain they could. What I am less certain of is whether or not their collective knownledge of diesel sub design would be all that applicable. After all, size does matter...;)

Something to keep in mind. IIRC the RAN to purchase a Stirling engine to test AIP systems on a test rig. While the specific results of those tests were not to my knowledge released to the public, the Stirling engine itself was crated up and a plug was not put into the Collins for the AIP system.

-Cheers
 

Todjaeger

Potstirrer
I think the americans would take issue with that. USS Parche and her sisters would definitely take issue. Parche played inside territorial waters where exposure could have led to war. I think you'll find stories emerge over time how both the US and USSR took it up and where those events were deliberately buried.

bear in mind that subs (certainly in western navies) are on constant footing. its why they have separate independant commands etc.... when compared to other service elements.
In fact subs and special forces are unique in that respect. (and subs are seen as defacto special forces)
Actually if one looks, some US SSNs do have battle stars. Some participated in GWI as firing platforms for Tomahawk cruise missiles.

I also agree with GF's thinking that as time progresses, information detailing US submarine ops during the Cold War might be a little more exciting than are currently believed.

-Cheers
 

StingrayOZ

Super Moderator
Staff member
Given the avalible options.

Im assuming baring any dramatic new table shifting technology then Collins II will be larger than Collins I.

While Australia does seem to be limited to conventional choices, I see no issue with Australia operating a 5,000 or 6,000t sub. If we are looking for additional capability then the best way that is significantly going to happen is a larger sub.

While added benefits from new technologies will offer incrimental improvements, for the capability we are looking for a larger conventional will offer that to us.
 

lopez

Member
in reference to australia's nuclear capability's or potential one i would suggest doing a little
more research into Lucas heights and there history with enrichment...
 

gf0012-aust

Grumpy Old Man
Staff member
Verified Defense Pro
Look very simple Germany that knows a thing or two about non nuclear subs (having built over 80 post WW2 and has 40+ on order, says the future is Fuel Cells, I am inclined to agree with them.
yes, for <2000 tonne displacement subs they certainly do know about subs

BTW, I've been to any number of Fuel Cell Conferences in Hannover, Hamburg and Frankfurt over the last few years - its been pretty damn apparent to all the navy staff and military geeks attending that fuel cells can be complimentary, but they can't fulfill the requirements of large boats with complex deep blue designed combat and sensor systems. the only country that has the generator technology to make fuel cells useful as an adjunct is the US - and they're already trialling those systems on other assets. Fuel cells will be excellent for dismounts - but for full blown subs with complex systems and designed to do 60 day missions? I doubt it when there are better opportunities already available for some US allies.


Now Australia that has build 6 boats with Swedish assistance, and they have had issues? Sweden has also gone down another AIP system (closed cycle??). Just buy the best or customise the best or you will end up like the the poor old RN with c3 subs
ah yes, you don't seem to be aware that some of the initial design problems were because the number crunchers hadn't factored in pacific water conditions and that threw a lot of the data and design out. in fact its the australian research that identified the early problems. its the australians who first developed proper fitting anechoic tiles - much to the surprise of some of our cousins using larger displaced assets - and that tile fitment and management is critical to acoustic mapping?

and you seem to be oblivious to the fact that the sig management and acoustic mapping was australian developed.

if you like I can give you the horror stories about the upholders and what we knew in 1999 even before the canadians bought them.

you do realise that AIP was trialled an abandoned by the RAN because it provided minimal benefit for the type of taskings we employ - and the fact that in a number of RIMPACs that USN ASW HK teams have been surprised a number of times as they assumed that diesel subs would need to come up for air and used as part of their prosecution sets, needless to say it hasn't worked.

you seem to be oblivious as why we need large subs, what large subs bring to the picture and some of the interoperability issues that we consider along wth what widgets we want. Common combat rooms, common combat systems, common training, an ability to "borrow" systems from our nuke fitted cousins etc all factor into the picture. quite frankly a 214 would not be able to support the combat system and sensor suite that we use in pacific waters.

I suggest that you actually read and learn about what some posters backgrounds are before you trot into a forum carrying on about subject material that you're pulling off the internet.

before people get excited about technology, subs are first and foremost about training and crew competency.

if you doubt that then let me remind you about the North Korean Romeos off the west coast of africa and the embuggerance that they caused.

Even crap boats well crewed will sink ships if the opportunity presents itself.
 

Firn

Active Member
This thread has some good information and links about the general merits of well trained and competent crews in a weapon system which has proven that it can punch far above its weight and force a reaction disproportional in effort.

The ratio of GF's arguments seems to be, as far as i understand it, sensible enough.


Firn
 

hairyman

Active Member
Common sense would say that a 6000 ton boat is going to be a lot harder to hide than a 3000 ton boat. but maybe this is not really an issue?
 

1805

New Member
The German and Swedish navies have operated coastal boats for the Baltic requirement which you correctly point out are very far removed from RAN requirements as you can get. However the U212a/214 is based on the 209 boats which were mainstream boats for global export. At 1800t and 8000 mile range you are just not being honest calling these coastal boats (yes the armament is not huge at 12 rounds but hit probability is much higher with modern rounds.

I am not critical of the Collins and Australian technical developments. The Upholders were OK boats but they biggest issue with them was they were build by a Navy that didn't love them and regarded them as 2nd class to SSNs, and offered them up as soon as cuts came. This ended potential for a exports. They were big boats, the Collins are much bigger and the Japanese boats similar size. The RAN view on AIP seems to fly in the face of all Navies the unique requirement argument is poor Japan is installing Sterling AIP on her boats.

Subs have many uses, some more important than others, but all rely on stealth key to that is noise, size and avoiding the surface. The sub is principally about destroying less well defended assets, special operations (which is very coastal) are also useful as is anti submarine operations. It is natural in peacetime or the relative state we live in that the focus should be on prestige big targets, but the lesson on WW2 was the USN and Germans saw them as a commerical rader, the IJN got it hopelessly wrong and focused on attacking naval assets which can defend themselves better.
 

1805

New Member
Oh and before you start talking about the value of Tomahawk on subs, I just don't buy this for a rational, it is much cheaper to just load them up on destroyers/frigates in VLS platforms. They are only truly effective against countries without effective air defences in which case you might as well use JDAMs
 

gf0012-aust

Grumpy Old Man
Staff member
Verified Defense Pro
Common sense would say that a 6000 ton boat is going to be a lot harder to hide than a 3000 ton boat. but maybe this is not really an issue?
at a physical sense thats often the case and is automatically assumed, actually at an acoustic management sense it's not.
 

Bonza

Super Moderator
Staff member
Oh and before you start talking about the value of Tomahawk on subs, I just don't buy this for a rational, it is much cheaper to just load them up on destroyers/frigates in VLS platforms. They are only truly effective against countries without effective air defences in which case you might as well use JDAMs
Pardon my saying so but you're taking a very narrow view.

1) What makes you think Tomahawk is going to be used on boats deployed in the 2020s?
2) What's stopping a new cruise missile design from incorporating signature management such as makes it capable of defeating air defences?
3) What makes you think a cruise missile capability on a destroyer is going to achieve the same thing as one on a submarine when the platforms are used in inherently different ways?
4) You can't just substitute a JDAM for a submarine-launched missile capability because they both achieve an explosion. What about all the issues of logistics and persistence that come along with air strikes? These issues are completely different to those of a submarine so equating one capability with the other is flawed.
5) You might not be aware (and I'm sure he's old enough to look after himself) but the poster you're responding to actually has a background in naval and underwater warfare tech, so you might benefit from seeing this discussion as an opportunity to learn, rather than just to spruik your views (nothing wrong with having opinions mind you).
 
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