MISTRAL now berthed at Darwin, with COURBET alongside PARRAMATTA.Thanks, I'll try to get some pics during her stopover.
Time to break out the Leica, Mr ASSAIL, Sir.
MISTRAL now berthed at Darwin, with COURBET alongside PARRAMATTA.Thanks, I'll try to get some pics during her stopover.
I took some from shoreside yesterday as I wasn't rostered on over the weekend. Tonight's the night, should get some close up shots from harbour side.MISTRAL now berthed at Darwin, with COURBET alongside PARRAMATTA.
Time to break out the Leica, Mr ASSAIL, Sir.
Congrats to the Naval Group, the French Navy and the French Defence Procurement Agency (DGA), but also the Atomic Energy and Alternative Energies Commission (CEA), and TechnicAtome. Now, they are focused on finalising the Suffren tests at the shipyard, with the start-up of the nuclear boiler room in the coming weeks.
First new generation Baracuda SSN Class, the Suffren launch by Naval Group as replacement of current Rubis SSN Class.
I know Australian will used this design as their new SSK, will be interesting to see how this design fare between Nuclear power and Conventional Power.
The difference in power output between the nuclear powered Barracuda and the conventionally powered Attack class is significant but not as great as I would have thought. The output of the Nuclear reactor is pretty big (150MW) but the actual propulsion system only uses 10MW compared to 7MW for the Attack class.Good to see this underway, the reactor hold up was really dragging on.
Still be a while before its conducting sea trials, which are absolutely critical for both the class and any related designs. Accoustics and performance characteristics are key, and at least a worse case scenario base line will see if its all been worth it. Several gens of subs from multiple nations have needed significant reworking to address issues, the previous Rubis class is a case in point. These are certainly going to be more capable than the Rubis class, which were so tiny.
So much heavy commentary on nuclear in Australia, there is probably more than a passing interest in the actual reactor itself, if for bench-marking purposes.
The real advantage of lithium ion batteries is the ability to reduce the time taken to recharge and extend the interval between charges. Transit speeds will always be as fast as is required but not so fast as to compromise radiated noise levels and reduced sensitivity of sensors. There would be nothing ASW forces would enjoy more than to find a target snorting at 15-20 kts, shallow, noisy and acoustically blind!If they go with lithium Ion tech, there will be a huge ability to sustain high output operation for a significant period of time.
For example, you might be able to sustain ~20 kts for perhaps a distance of 1000km and cover that kind of distance in 24-36hrs. So all of a sudden, conventional subs aren't so static and easy to predict. I am curious to see how much generation they get and if they can do snort at ~15kt. You might have the ability to have very fast transits, which would be huge for Australia. It starts to make a lot more sense to based a sub of this kind of capability off a nuclear platform as they behave more simular to each other.
Also, to go from low speed to very high speed very quickly. Maximum speed I imagine would be quite similar, perhaps a kt or two different. Nuclear boats seemed to have moved away from very fast designs to more quieter and slower cruising speeds.
Well the speed when snorting is kinda flexible I guess. Its a balance between what you can cram into the batteries and what you want to use to move forward. Its I guess more about how much you can generate in that time to maintain an appropriate indiscretion rate. There was initial speculation about having 6 diesels, which would basically allow you to double your energy use during transit (or halve your indiscretion time) which could see significant increase in the cruising speed. But I think we will see a smaller number than that, perhaps 4. Fast snorting doesn't always makes you blind if you consider dismounted sensor platforms.Time snorting is when a submarine is most vulnerable hence the great effort to reduce the time and interval.
I’m not current on Collins class practices but even at say 12/13 kts transit speeds they could still cover 300 miles per day, have good sonar performance and be quite power efficient with a totally acceptable indiscretion ratio.
I think that was one of the things looking at reactor size and configuration and the efforts made into reducing drag on SSN's. I think the move is to quieter <20kt transits. Less refueling, less noise, more awareness, acceptable everything else. The days of chasing russian rockband rockets at 35kts are well and truly over.Modern SSN sprint capabilities allow them to scoot if detected and to escort CBGs but I doubt their transit speeds would be vastly different from modern SSGs however both Astute and Virginia classes still state top speeds 25-30 kts.
Remember that the French company SAFT is one of the leading battery producers in the world (as I recall has Li batteries fitted to satellites, the F-35 and A350) and recently announced links with both TKMS and Naval Group with their submarine solution:But the question is how much lithium ion and what type of chemistry. I definitely think we should be talking to the Japanese, It may be in the future, they join (or benchmark) our program, if the technology has evolved performance so far that conventional subs are better off being built from a nuclear design. There knowledge in this area is decades ahead (and different) of everyone else.
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Just remember that you are really only guesstimating because much of what subs do, even basic stuff such as snorting for how long, battery recharge rates etc., are OPSEC and those that do know don't say. Assail will have a far better understanding than those who haven't worked with subs or ASW. Yes transits are transits, but subs have their ways and they are hard to find if you don't specifically know where to start looking, especially if the sub is a quiet one.Well the speed when snorting is kinda flexible I guess. Its a balance between what you can cram into the batteries and what you want to use to move forward. Its I guess more about how much you can generate in that time to maintain an appropriate indiscretion rate. There was initial speculation about having 6 diesels, which would basically allow you to double your energy use during transit (or halve your indiscretion time) which could see significant increase in the cruising speed. But I think we will see a smaller number than that, perhaps 4. Fast snorting doesn't always makes you blind if you consider dismounted sensor platforms.
But with so much capacity and energy density, and the ability to deliver huge current without significantly impacting total capacity does make it a game changer. But the question is how much lithium ion and what type of chemistry. I definitely think we should be talking to the Japanese, It may be in the future, they join (or benchmark) our program, if the technology has evolved performance so far that conventional subs are better off being built from a nuclear design. There knowledge in this area is decades ahead (and different) of everyone else.
I think that was one of the things looking at reactor size and configuration and the efforts made into reducing drag on SSN's. I think the move is to quieter <20kt transits. Less refueling, less noise, more awareness, acceptable everything else. The days of chasing russian rockband rockets at 35kts are well and truly over.
But this also creates problems. Very far locations become difficult to reach simply through limits of endurance. US into the Indian ocean for example isn't easy. Long transits are long transits.
Of course, nothing definite here, all shadows and speculation. Of course, those in the loop say nothing, as frustrating as it it. Not even defMins can jump in on this to clarify, which is why speculating on Australia's subs is a huge business, breakfast tv now has it as a daily segment. I would always respect Assails, Volks, Alexa and the other defpros, even the stealthy ones. Please do pick me up if I use any definate terms or if it sounds like I am trying to sell my rambling opinions as facts.Just remember that you are really only guesstimating because much of what subs do, even basic stuff such as snorting for how long, battery recharge rates etc., are OPSEC and those that do know don't say. Assail will have a far better understanding than those who haven't worked with subs or ASW. Yes transits are transits, but subs have their ways and they are hard to find if you don't specifically know where to start looking, especially if the sub is a quiet one.
One thing @Ananda it’s actually FREMM which translates into English as Frigate European Multi Mission.France & Greece Working on G-to-G Agreement for Multi-Mission Frigates - Naval News
According to this, Greece seems want to join French Belhara class FDI multipurpose Frigate.
This type of market that British Type 31 try to get in the global market. Based on what French bring in last Singapore defense exhibition, they are also try to market Belhara Class to Asia Pacific.
French before try to bring FREEM class, but from what I read considered bit too expensive from many in Asia Pacific market. Belhara FDI multipurpose Frigate probably will get more traction in global market then FREEM.