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The cruiser future in the RMN - another go

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Re: The cruiser future in the RMN - another go
Post by Kizarvexis   » Thu Jun 25, 2015 1:02 am

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Relax wrote:
Kizarvexis wrote:

Um, the reason we are proposing such large ships is to seriously upgrade the defenses on said ships in the more dangerous threat environment. The RMN likes to have reasonalble survivability and the lighter ships need more mass for that survivability.


Uh, no. The survivability is its additional systems: Sidewalls strengthened. Compartmentalization. Extra CM/PDLC for the G warhead environment. Same number of hits will mission kill this new "CL" compared to old "CL's". Which by definition means at most a handful and if you are unlucky: 1.

Now, we could easily enter the argument of additional PHYSICAL armor being dirt cheap in the Honorverse and it would be silly to not add it. If this is the case, why are DD/CL completely unarmored and why are there hundreds of them built for all navies? Of course the counter arguement here is, why have a distinction at all between CL/CA if this is the case? At some point operating expenses dominate, building expenses.

Reasons: $$$$$$$. Always $$$. At some point human lives are cheaper to replace than the object being protected.


Current DD/CL are lightly armored as they don't have the mass for armor AND the other systems. WHY would you upgrade the other passive defenses and NOT add armor when the ships have to be larger to fit the Mk-16 anyways?

The RMN likes to try and get the best survivable ships they can build. Something about training replacement spacers and the morale effect of deliberately placing spacers in ships they expect to die. While LACs are a trade off in size vs capability, proper warships are not supposed to be. Don't forget the public morale of this as well.
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Re: The cruiser future in the RMN - another go
Post by Tenshinai   » Thu Jun 25, 2015 1:59 am

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JeffEngel wrote:The other big operating cost reduction I have in mind is a lot more radical, but given the nature of the mission and evolving RMN practice, I think it's got a shot at acceptance. The idea is to eliminate on-mount weapon crews for the missile launchers and grasers at least. They're only back-ups in case damage eliminates the ability of those weapons to fire from central control. I submit that that is not essential to the mission of the smallest effective warship. You would lose some ability to take mediocre shots under some damage conditions, all of which usually obtain, if at all, only when you're losing badly already.


That is just not correct. That is stating a belief that either the ship remains in pristine condition, or the battle is a loosing one.

One of the primary differences between military and non-military ships has always been the ability to continue to function despite battledamage, and while it looks good on paper, heavily cutting down on that ability is going to make your suggested ships severely crippled from the start.

Oversimplified, such a change would effectively mean that you need twice as many ships in any battle that isn´t a curbstomp. In any real battles, you MUST expect to take damage.

JeffEngel wrote:And back-up links should be easy enough with that spare tonnage, though that's maybe one place where the 1980's vision of the future on which the series is based diverges from a 2015 vision of it.


There´s a huge difference between "a link", and a reliable, hard to damage, hard to kill link...

JeffEngel wrote:I think they can go for both, given the cruiser mission. Just reducing missile throughput increases time it takes to empty magazines (which is taken as an unalloyed good when RFC compares the BC(L) to the BC(P) - not something I can agree with


Quite so. Saying that is just stating that whoever is in command of doctrine doesn´t understand how to use the BCPs. For a modern/semimodern battlefield analogy, they would be divisional sized units of rocket artillery. Except without the ability to reload much. And i might add that the Soviets used division sized artillery units in WWII with devastating effects when employed properly.


BCPs wont ever be able to effectively guide all they can fire, but seriously, who cares? That´s like trying to have them act as extra launchers for the wall, totally negating their speed advantages, which is pretty much wasting them.


However i think a better idea for this CL of yours is to INCREASE missile throughput per launcher, as you are reducing the number, this combined with the offbore launchers means you retain much of the tactical ability of a larger ship.

RFC wrote:So, yes, the Sag-C is a transition type, but what it transitions into is likely to become the standard CL of the RMN. The "notional" 300,000-tonner may never go into production at all. On thing you can be pretty confident of is that warships aren't going to get a lot smaller. Assuming that you take DD tonnage as lying somewhere in the 100,000-120,000 ton range and you assume the same proportionate growth as that between a WW II Fletcher class DD and a Flight III Arleigh Burke class DD, your Honorverse DD would grow to 500,000-600,000 tons, which is moving you up towards something bigger than a Sag-C even for a DDD.


That is, i´m afraid i have to say, an absolutely dreadful comparison to make. Most of all, because the USN post WWII developments have not mainly been a matter of technology but of politics.

Essentially it´s the same troubles that plague the F-35 or the Zumwalt developments, the apparently unstoppable drift towards "oooh shiny, we simply MUST have that ( since we can´t afford as many of the ships/planes as we really need )".

Main problem with the comparison is that the Arleigh Burke has ended up a decent DD -despite- everything rather than thanks to deliberate thought and intention.

Also, it´s not really a good comparison for another very simple reason. Most WWII destroyers were already at the time noted as not really being of suitable size.
Japan was the only one to really put it in official print, estimating that for destroyers with the tech at the time to be 100% effective, they would need to be 3500t minimum, and possible as large as 5000t.

Add to that, that the Danish Ivar Huitfeldt, German Sachsen and Dutch De Zeven Provincien frigates all have pretty much the same capabilities as the Arleigh Burke, but at 2/3 the tonnage (just over 6000t), yes the USN DD has larger magazines and room for an extra helicopter, but OTOH, the Ivar Huitfeldt class has twice the operational range so a big *meh* to that, overall the comparison becomes more and more flawed.

And as a final coup de grace, the Fletcher class was a much more effective ship compared to tonnage than the Arleigh Burke ever will be.
And i expect that if the suggestion for making the Fletcher a 3300t ship had gone through, it could have been superb.


RFC wrote:Frankly, I haven't made my mind entirely up, but I'm thinking the classic DD role/mission no longer applies and we'll be looking at simply deleting that class and going with a single cruiser niche below the Nike. I'm not saying that's the way things will happen, but the truth is that most of the DD/CL/CA screening roles for the battle fleet are nonstarters in an MDM/DDM universe. What is going to be needed is a platform that can be built in sufficient numbers to deploy everywhere you need it (which implies as cheap and small as possible) and yet remain survivable enough to do its job in peacetime and wartime alike (which implies not-cheap and not-small). As always, the designer's unenviable challenge will be to somehow reconcile those conflicting requirements.


I get the feeling that RFC is looking at this too strictly adhering to the common RMN idea of jack of all trades.

A small warship will NEVER be able to stand up to anything remotely powerful with the advent of MDMs and pods, end of story.

But the requirements for small warships does not need to include such. Trying to include it anyway is letting the powercreep become far too great(or the desirecreep perhaps).

That´s just going the "oooh shiny" path again, because really, did anyone expect a pre MDM DD to fight a pre MDM waller? Eh, NO!

So why is such thinking taken into account for a nextgeneration DD/CL/CA?

Yes a nextgen light warship needs to be able to defend itself vastly better than earlier ones, but noone expected previous generation CLs to surive against BCs, why should next generation be different?

A small patrol/scout/recon/delivery boy etc warship needs to be able to fight LACs, pirates and ships of its own size, nothing more.

Otherwise you just end up with Nike-sized ships patrolling every little backwater starsystem, at ridiculous costs.

Based on current knowledge?
I would expect the future to include a DD at 200-300kt(for when you really just need a hyper capable presence), a CL/CA at 400-600kt and maybe a CA somewhere not so much larger.

Because really, the missions for DDs isn´t what is disappearing, but rather that of the heavy cruiser, as anything smaller than a Nike is going to have a hard time surviving in a fleet on fleet engagement anywhere near the wall.
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Re: The cruiser future in the RMN - another go
Post by Relax   » Thu Jun 25, 2015 2:06 am

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Tenshinai wrote:
Based on current knowledge?
I would expect the future to include a DD at 200-300kt(for when you really just need a hyper capable presence), a CL/CA at 400-600kt and maybe a CA somewhere not so much larger.

Because really, the missions for DDs isn´t what is disappearing, but rather that of the heavy cruiser, as anything smaller than a Nike is going to have a hard time surviving in a fleet on fleet engagement anywhere near the wall.

Excellently put forth other than the bolded conclusion about the CA dieing.
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Re: The cruiser future in the RMN - another go
Post by kzt   » Thu Jun 25, 2015 2:16 am

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Kizarvexis wrote:Pod layers run out of ammo quick too, which once again, is why the Nike BC(L) went to such a large ammo size per tube. Higher ranges on the missiles mean longer engagement times which means you need a higher capacity on your magazine.

If you have a BC(P) fighting a BC(L) the BC(L) just dies without ever entering effective range. It's really cool 8" gun armed cruiser vs a ship with 16" guns. It really doesn't much matter how tought the cruiser or how deep its magazines are or how lightly armored it's foe is when it spends 20 minutes getting shot to pieces inside the effective range of it's foe before it can reach effective range.

That's why the current push is for survivability.
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Re: The cruiser future in the RMN - another go
Post by Relax   » Thu Jun 25, 2015 2:28 am

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kzt wrote:
Kizarvexis wrote:Pod layers run out of ammo quick too, which once again, is why the Nike BC(L) went to such a large ammo size per tube. Higher ranges on the missiles mean longer engagement times which means you need a higher capacity on your magazine.

If you have a BC(P) fighting a BC(L) the BC(L) just dies without ever entering effective range. It's really cool 8" gun armed cruiser vs a ship with 16" guns. It really doesn't much matter how tought the cruiser or how deep its magazines are or how lightly armored it's foe is when it spends 20 minutes getting shot to pieces inside the effective range of it's foe before it can reach effective range.

That's why the current push is for survivability.


Depends: Does the BCL get magic survivability with 600:1 hit rate as in AAC? BC'P just got 6-7 hits on the BCL and is now dry.....
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Re: The cruiser future in the RMN - another go
Post by Relax   » Thu Jun 25, 2015 5:37 am

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Kizarvexis wrote:
Current DD/CL are lightly armored as they don't have the mass for armor AND the other systems. WHY would you upgrade the other passive defenses and NOT add armor when the ships have to be larger to fit the Mk-16 anyways?

Because to absorb the power of such a powerful missile hit, we are talking a HUGE amount of armor. SAG-C does not have enough BTW. BCL seems to have enough. Armor required will be an "integer" amount since we are talking light combatants. BC's have more than single integer hit status. So, it comes down to redundancy and active defenses for light combatants. Half assed armor does no one any favors.
Kizarvexis wrote:The RMN likes to try and get the best survivable ships they can build. Something about training replacement spacers and the morale effect of deliberately placing spacers in ships they expect to die. While LACs are a trade off in size vs capability, proper warships are not supposed to be. Don't forget the public morale of this as well.

This is tied 100% to PR. Reality is that, survivability has everything to do with available $$$. You cannot have 100% SD's and dispatch boats. It is not as if Pirates run around in small ships today or in the HV because that is their preferred transportation choice. It has everything to do with $$$. If the money is available, sure, armor away. Reality is that active defensive systems with get majority of the $$$ as these systems make nice bold bullet points on your presentation when selling to the government. Better armor or stronger sidewalls that help diffuse damage, is completely ambiguous to willfully ignorant paper pushing ladder climbing dip Shits who wholly reside in the procurement division and politico back rooms of government offices where WHO you know matters more than how WELL you can build/design.

When push comes to shove, human life is rather cheap. Two of the most horrific doses of reality happened during WWII. China and Russia ruthlessly showed just how cheap human lives truly are. Chang Ki Shek casually blew up a giant earthen dam, flooding, drowning a quarter million and then causing a subsequent massive famine. Russia casually threw people into the front lines and rear construction areas with no training and no arms(winter clothes)other than told to pick up what you can when you can. Japan's Kamikazee pilots. German having kids in the army. Extreme examples? Sure. Is this Manticore? No.
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Re: The cruiser future in the RMN - another go
Post by Jonathan_S   » Thu Jun 25, 2015 8:37 am

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kzt wrote:If you have a BC(P) fighting a BC(L) the BC(L) just dies without ever entering effective range. It's really cool 8" gun armed cruiser vs a ship with 16" guns. It really doesn't much matter how tought the cruiser or how deep its magazines are or how lightly armored it's foe is when it spends 20 minutes getting shot to pieces inside the effective range of it's foe before it can reach effective range.

That's why the current push is for survivability.

Even is you assume the BC(P) is carrying full up 3 drive MDMs, without Apollo they don't have any more effective range than the Mk16 DDMs a BC(L) carries.

The difference is that if they open fire simultaneously at 65 million km a Mk23 covers the distance in 540 seconds, and the Mk16 takes 810 (450 of that on ballistic).


Did you just mean that due to the flight time differential a BC(P) could likely land enough heavily stacked salvos to knock out the BC(L) before the DDMs reach their terminal guidance point?
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Re: The cruiser future in the RMN - another go
Post by drothgery   » Thu Jun 25, 2015 9:32 am

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Kizarvexis wrote:As for major or minor skirmishers, the examples still highlight the RMN officers who are concerned about ammo endurance. The BC(L) is said to explicitly address this issue over BC(P)s, so why ignore it in new construction?
BCs might still be involved in a modern fleet engagement. CAs and CLs will not be except by accident.
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Re: The cruiser future in the RMN - another go
Post by kzt   » Thu Jun 25, 2015 10:46 am

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Jonathan_S wrote:Even is you assume the BC(P) is carrying full up 3 drive MDMs, without Apollo they don't have any more effective range than the Mk16 DDMs a BC(L) carries.

The difference is that if they open fire simultaneously at 65 million km a Mk23 covers the distance in 540 seconds, and the Mk16 takes 810 (450 of that on ballistic).

Did you just mean that due to the flight time differential a BC(P) could likely land enough heavily stacked salvos to knock out the BC(L) before the DDMs reach their terminal guidance point?

No, look at the end of AAC. The peeps felt that firing long range ballistic missile was absurd because honorverse missile are absurdly stupid. The target can maneuver out of the seeker cone with long ballistic segments. Plus MDM effectiveness at actual powered max range is not great, adding a ballistic segment has been stated to significantly decade that further.

Now you might argue that these are absurd issues, but I don't write the damn books.
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Re: The cruiser future in the RMN - another go
Post by Jonathan_S   » Thu Jun 25, 2015 12:07 pm

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kzt wrote:
Jonathan_S wrote:Even is you assume the BC(P) is carrying full up 3 drive MDMs, without Apollo they don't have any more effective range than the Mk16 DDMs a BC(L) carries.

The difference is that if they open fire simultaneously at 65 million km a Mk23 covers the distance in 540 seconds, and the Mk16 takes 810 (450 of that on ballistic).

Did you just mean that due to the flight time differential a BC(P) could likely land enough heavily stacked salvos to knock out the BC(L) before the DDMs reach their terminal guidance point?

No, look at the end of AAC. The peeps felt that firing long range ballistic missile was absurd because honorverse missile are absurdly stupid. The target can maneuver out of the seeker cone with long ballistic segments. Plus MDM effectiveness at actual powered max range is not great, adding a ballistic segment has been stated to significantly decade that further.

Now you might argue that these are absurd issues, but I don't write the damn books.

They thought it was crazy to fire 3 drive MDMs with a ballistic phase to extend their range out to 150 million km.
That's seems far different than extending a DDMs range out to the 65 million km that a MDM's power flight can reach.

Of course even at that range neither missile's accuracy is going to be anything to write home about (assuming neither has Apollo). But the DDM's shouldn't be massively worse (a little worse due to slightly smaller diameter which should equal smaller sensors; but not a massive difference)


Going back to the AAC scenario, at 150 million km the ballistic phase for a full up MDM is at least 520 seconds (more if the target maneuvers clear of the straight line path). But in that time even a current Havenite SD can likely displace less than a million km. That's apparently enough to get clear of the targeting basket for the missile's terminal seeker; but only because the control loop is too laggy at that range to properly cue the missile. At ranges you'd actually used non-Apollo MDMs, less than 1/2 that range, that's much less of an issue.


I don't accept that any (non-Apollo) ballistic shot has to have crap accuracy just because one insanely long-ranged one would.
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