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I know 2/10's of bugger all about naval stuff but I do remember back in the Oberon Class days that our conventional subs had a reputation for being bloody quiet, much to the consternation of US commanders when their flagship, usually one of their big carriers, would be taken out in joint fleet exercises.Quote:
Originally Posted by lyonsy
Seems subs are a issue in Spain as well. Planning and execution often over looks simple things [biggrin] My bet is well before 2050 all subs will be autonomous vessels like these which are already being built or these which will be very soon
Quote:
Originally Posted by whitey56
Nuke is great if your operating in deep waters with multiple reflection layers due to temp difference's allowing them to hide there machinery noise as no matter what you do with nuke reactor they will not be as quite as a chemical reaction making electricity.
The water's Australian subs operate in are what is classed as shallow and generally warm there ends up being no reflection layers to hide below so you have have extremely quite subs this can only be done with a conventional sub running in electric with chemical reaction 's generating electricity that require no pumps or fans.
Btw this is why conventional subs are able to infiltrate carrier task forces and sink flag ships even when the war game is stacked against them with the fleet knowing they are under submarine attack and actively hunting them even before they games officially start to save face and make them selfs look better.
america can also bring cost's down just on sheer volume with essentially being to mass produce submarine parts
Composition of the current force[edit]
- Los Angeles class (32 in commission, 2 in reserve) – attack submarines
- Ohio class (18 in commission) – 14 ballistic missile submarines (SSBNs), 4 guided missile submarines (SSGNs)
- Seawolf class (3 in commission) – attack submarines
- Virginia class (15 in commission, 1 delivered, 1 fitting out, 9 under construction, 2 on order) – fast attack submarines
also do not forget when the colins class was built and designed was in a hot phase of the cold war and the equivalent american sub is the Seawolf which america only built 3 due to there cost to build and maintain in a post ussr world cause they had the option of keeping there current fleet going we had to replace ours and to change the designs would of led to more issues and delays,
The colins class biggest issue was it was too ambitious for a company that had never built a sub before, and they under estimated how quickly computer tech and speeds would grow and built custom non upgradeable super computers that where slower then house hold pc buy time of lunch esp the last ones
and a prop that was ether sabotaged or had non picked up design flaw until the usn reprofiled them and balanced getting rid of cavatation and and balance issues causing machinery noise
Air independent propulsion is an option, especially combined with new battery technology. The weight saving with Lithium batteries alone would be an attractive option.
Air Independent Propulsion is a must for Australia’s next submarines | The Strategist
Interesting Bob. The Fuel Cell version of AIP if combined with the CSIRO recent break though on storing hydrogen as ammonia could make a very interesting sub. The fires on the Russian boats makes liquid oxygen a big no thanks.Quote:
Originally Posted by bob10
The fuel cell technology and more importantly Solar or renewable to hydrogen stored as Ammonia for storage and transport changed back to hydrogen for fuel cells is one of my predictions as both coal and battery killers. It would make a butt kicker in fuel cell boat. Hydrogen-powered fuel cells are far more energy efficient than traditional combustion technologies. No need to surface would mean our crews do not need to sit on the bottom for weeks with only basic life support to massively extent battery life by not using any power for the sneaky stuff they do or used to with our O boats :)
A very interesting thread. Onyas.... [thumbsupbig]
Quote:
Originally Posted by NavyDiver
Yes, advances in fuel cell technology coupled with exciting new technology on the horizon definitely looks the way to go. Nuclear is not an option. It's a sad indictment on the human race that major advances in how we manage our day to day living , more often than not, stems from our efforts to more efficiently make war on one another. I'm naive enough to hope that the common enemy of climate change will accelerate efforts to find a solution in these new technologies, but the cynic in me suggests otherwise. In any case, it is exciting to think that we may be on the cusp of a new breakthrough in technology, comparable to wooden ships to steel, sail to steam, and so on.
The use of unmanned vehicles is another option. Here is an article from the Submarine Institute of Australia, from " Deep Thinker".
Deep Thinker: The importance of underwater robotics for undersea warfare in Australia
The proposed new submarines may be powered by new generation permanent magnet motors, with sealed lithium polymer battery packs for their torpedoes. At the end of the article, check out where this company is situated , in our area.
http://marinepropulsionsolutions.com...ric-Drives.pdf
Dont we just run the american mark 47 torp
the biggest thing they would really need to work on is making the lunch of the torps much quieter as this is what gives a sub away,
if they can get it to where they can launch a torp undetected then having a near silent torp although operating slower then a regular one would of great importance.
as you could get into a fleet launch all your torps have them go to a different location then turn in to make it appear you are in a different location if detected then once they are have a full speed attack and the sub will then prob hold station while the fleet runs away or slowly slink away at a couple of knots.
unmanned long term stealth missions still a long way off operating from bases over great distances, but i can see them using them with a sub being used as a carrier and base of operations, it would just be an upgrade of the guide by wire torps they all ready use, change the wire to allow power to go through to keep the vehicle powered while there is little chance of detection as you are not sending radio signals its all hard wired and if you are detected you have an operator there ready to self destruct it so nothing is able to be gained from studying it if done correctly