055 DDG Large Destroyer Thread

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Iron Man

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Besides the accuracy of the 20MW figure, couldn't a seeming excess of power capacity be explained in these all Burke comparisons by:
1. A requirement to have a larger hull space for the additional generator sets to satisfy or supplement the power demands of the new electronics; already fitted or planned. and/or.

2. Those side structures are indeed part of the integrated combat system, which contemporary ships don't have?

Besides propulsion, it would explain why 055 needs the extra juice; to power additional Search, passive, or EW arrays (GaN based or not), or HPM, rather than being mechanical such as cooling plants or doors which could be better fitted to keep the RCS decrease over 052D.
Yes, we have already discussed the possibility that 1) future-proofing, and 2) large power requirements from the unknown panels (such as from HPM), could both be reasons for a possible 20MW power generation capability. Bltizo and myself had a very narrow side discussion about possible "current" reasons besides the above that would require 20MW power usage.
 

Iron Man

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SPY-6 even in 4.26 m/14 foot is very capable, the 20 foot/6.1 m variant initialy planned was better vs Ballistic missiles, SPY-1 A - D do 3.7 m/12 foot.


What is electical power of a AB ? and AEGIS like Chinese DDG 052C/052D also if it is possible.

052D Type 346A 4.3 x 4.3 meter/14 foot

055 have 346B ? a little more larger


And for 052C ?
The power generation capacity for a Flight IIA is 9MW, while for the Flight III it will be 12MW. I don't think we have any information on the power generation capacity for either the 052C or the 052D, though I would guess it would be slightly less than the Flight IIA, perhaps 6-8MW.

before I'll forget myself Jul 4, 2017

and Jul 5, 2017
plus later I was guessing (but didn't post as LOL it was based on the height of individuals standing in the Type 055 bow in some picture) the side of the Chinese radar from the above post to be five meters, so the area would be about twenty square meters
It's possible that the panels are about 5m tall in actual length/width (vs slanted relative length/width due to perspective), though you have to remember that the actual radar itself is going to be a little smaller than the panel size, by an unknown amount, unless you can accurately measure the width of the panel cover "lip":
055 AESA.jpg

But even if you can get the lip measurements correctly, there is no reason to believe that the T/R modules will be arranged to completely fill up the surface area underneath the panel. Here is a 052C panel by way of an example:
imagesB0SWBW35.jpg

In any case, going from the 052C to the 052D there is a definite increase in radar size:
type-346-compare-type-346a.jpg

You can see that the 052D's radar is wider, though not necessarily taller, compared to the 052C.

Going from the 052D to the 055, I don't think there is a physical size change, however:
052D vs 055.jpg

As you can see, they are both just under two decks height, and if they are not the exact same size, then they are at least very nearly the exact same size. I have mentioned before that the 346A (which is what I'm calling the radar on the 052D), may be different from the radar on the 055 (346B?) in that the 055's main panel may be composed entirely of S-band T/R modules, whereas in the 346A (and the 346), the main panel consists of a mixture of S-band and C-band modules, which BTW is the answer to a long-unanswered mystery as to how the HHQ-9s were being terminally guided. The C-band modules were arranged into two 'bars' of modules above and below the S-band main section, and were responsible for providing terminal illumination for the HHQ-9s. Probably something like this:
052C S+C band Modules.jpg

Where the red bars are the C-band modules and the orange middle portion consists of the S-band modules. I think both the 052C and 052D's radars look like this, except that for the 052D there of course won't be any of the rectangular holes in the 4 corners for air ventilation (as it is liquid-cooled). If there is in fact an X-band radar on the main mast of the 055 (or it could actually be C-band also), then the C-band bars of the 052C/D will have become redundant and therefore removed from the main array, resulting in the entire main array being filled with S-band modules. So even if the size of the 052D and 055 main array panels are physically the same dimensions, it may be that the 055's main array is actually larger than the 052D's when measured in terms of the number of S-band modules present.
 

taxiya

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@Iron Man ,maybe another way of thinking is this "is 12MW enough for flight III's wanted setup?" or "12MW is a compromise (less than wanted) due to the constraint of the hull's basic design because it can not be stretched too much". Maybe the wanted figure was 16MW? But cut down to 12 to fit the hull? CG(X) was actually about (larger than) 055 and was the wanted size.

We need to remember that flight III was an improvement from an older design, 055 was a total new design without constraint of size.
 
...


It's possible that the panels are about 5m tall in actual length/width (vs slanted relative length/width due to perspective),
just a simple question: do you think Type 055 main (S-band) panel may have the proportions I estimated Jul 5, 2017
... the panel is ROUGHLY 33:26 ("higher than wider": if its bottom is 1.0, its side is ABOUT 1.27)

***
or I spent my time measuring some optical illusion? LOL!

I'm of course asking just about the cover, understand what you also said:
though you have to remember that the actual radar itself is going to be a little smaller than the panel size, ...
 

Blitzo

Lieutenant General
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Correct, we know NEITHER the entirety of the 055's electronics suite or the Flight III's electronics suite. Unfortunately for your argument, this doesn't really mean much. We know what electronics systems it ought to have: radars, sonars, ESM, ECM, communications, satcoms, datalinks, combat data systems, weapons, propulsion, desalination, water distribution, heating/cooling, food storage and prep, waste processing, interior lighting, etc. etc. etc. Most of these systems have predictable (and similar) power requirements, and both ships will pretty much have all of these systems on board. The only real unknowns are the big power suckers, the radars. I don't even grant you that the EW system is a big power drain since I've already posted how large a jammer actually needs to be, and since the only part of an EW system that requires any degree of power is the actual jammer (the rest being passive detectors/receivers), you've got nothing much here as far as EW is concerned suck up your 4 extra MW. So all you've got now is the 346. So your argument seems to be basically that if not the HPM, then the 346 + X-band radar is what is sucking up 67% more power to run than the SPY-6 + AMDR-X. I guess it's running on GaSDN (gallium super-duper-nitride). In any case, is it "possible" for a GaN-based 346 radar to suck that bad? Yes, I guess it's possible. Is it plausible? No, I think not.

Negative, I don't buy that (underlined part). We have no idea how big a jammer "actually needs to be" or how powerful it may be, unless for some reason we are going to already assume that the 055 has the same [kind of] active EW suite as a Flight III Burke in which case the point of my argument is missed entirely.

For example, 055 could use new generation active jamming technology derived from GaN AESAs which would account for a significant part of that "remaining" 4MW.

Similarly, the 346+X band radar might also happen to use more power than SPY-+AMDRX as well. Put all three together (346 power relative to SPY-6, X band power relative to AMDRX and active EW power) and it doesn't take more than tweaking with how much they may potentially contribute to additional power consumption to lap it up.
 
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Iron Man

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@Iron Man ,maybe another way of thinking is this "is 12MW enough for flight III's wanted setup?" or "12MW is a compromise (less than wanted) due to the constraint of the hull's basic design because it can not be stretched too much". Maybe the wanted figure was 16MW? But cut down to 12 to fit the hull? CG(X) was actually about (larger than) 055 and was the wanted size.

We need to remember that flight III was an improvement from an older design, 055 was a total new design without constraint of size.
I think the correct way to think about this is that 12 MW is not necessarily a "compromise" for the Flight III. What is the actual compromise is that the USN wanted to install a 20' AMDR panel instead of a 14' panel. It is entirely possible that more power could have been installed on the Flight III had the hull been able to accommodate a 20' panel. Also, keep in mind that a 20' panel is what the USN felt was needed for its BMD requirements. Does the PLAN have the same BMD requirements for its 055? The answer is clearly NO, because the 055 is a clean sheet design and yet the radar face is very similar in size to the 14' SPY-6. It may actually be smaller because the SPY-6 cover according to depictions occupies about 2.5 decks of height while the 346B cover occupies slightly less than 2 decks of height. If the PLAN had actually wanted a similar 20' AMDR BMD capability, then they would have built such a radar (and the additional power generation capacity). But they clearly didn't. So the power question clearly isn't one of the PLAN compromising or not compromising on radar panel size.

just a simple question: do you think Type 055 main (S-band) panel may have the proportions I estimated Jul 5, 2017
or I spent my time measuring some optical illusion? LOL!

I'm of course asking just about the cover, understand what you also said:
It may, but I think the exact size of the panel is not going to be helpful, and not only because the actual radar is smaller, but also because it still doesn't tell us about how the T/R modules are arranged on the radar face, and therefore we have no way to estimate the number of modules present, to speak nothing of the fact that we don't know what size each module is. Really the only way for us is to get a very detailed shot of an open panel as they are installing the modules so we can estimate both the size of the modules as well as how they are arranged on the panel face, something like the 052C panel photo in my post above but at a much higher resolution.

Negative, I don't buy that (underlined part). We have no idea how big a jammer "actually needs to be" or how powerful it may be, unless for some reason we are going to already assume that the 055 has the same active EW suite as a Flight III Burke in which case the point of my argument is missed entirely.

For example, 055 could use new generation active jamming technology derived from GaN AESAs which would account for a significant part of that "remaining" 4MW.

Similarly, the 346+X band radar might also happen to use more power than SPY-+AMDRX as well. Put all three together and it doesn't take much altering of their potential contribution to additional power consumption to lap it up.
Negative I don't buy that (underlined part). Unless you want to substitute your HPM panel for this super-duper jammer, in which case your jammer becomes just another pie-in-the-sky stand-in for the HPM, in which case we are back to total conjecture.
 

FORBIN

Lieutenant General
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I think the correct way to think about this is that 12 MW is not necessarily a "compromise" for the Flight III. What is the actual compromise is that the USN wanted to install a 20' AMDR panel instead of a 14' panel. It is entirely possible that more power could have been installed on the Flight III had the hull been able to accommodate a 20' panel. Also, keep in mind that a 20' panel is what the USN felt was needed for its BMD requirements. Does the PLAN have the same BMD requirements for its 055? The answer is clearly NO, because the 055 is a clean sheet design and yet the radar face is very similar in size to the 14' SPY-6. It may actually be smaller because the SPY-6 cover according to depictions occupies about 2.5 decks of height while the 346B cover occupies slightly less than 2 decks of height. If the PLAN had actually wanted a similar 20' AMDR BMD capability, then they would have built such a radar (and the additional power generation capacity). But they clearly didn't. So the power question clearly isn't one of the PLAN compromising or not compromising on radar panel size.


It may, but I think the exact size of the panel is not going to be helpful, and not only because the actual radar is smaller, but also because it still doesn't tell us about how the T/R modules are arranged on the radar face, and therefore we have no way to estimate the number of modules present, to speak nothing of the fact that we don't know what size each module is. Really the only way for us is to get a very detailed shot of an open panel as they are installing the modules so we can estimate both the size of the modules as well as how they are arranged on the panel face, something like the 052C panel photo in my post above but at a much higher resolution.


Negative I don't buy that (underlined part). Unless you want to substitute your HPM panel for this super-duper jammer, in which case your jammer becomes just another pie-in-the-sky stand-in for the HPM, in which case we are back to total conjecture.
Very interesting,
Surely not for a main reason Western countries in general don't have ( by ex Japan don't have, Taiwan also SK yes but only SRBM ) or very few Ballistic Missiles completely the opposite for China, Russia the specialists or others so can be interesting but not necessary as for Western countries in addition ABM are very expensive much more than ennemy missiles, really secondary weapons for China.
 
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Blitzo

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Negative I don't buy that (underlined part). Unless you want to substitute your HPM panel for this super-duper jammer, in which case your jammer becomes just another pie-in-the-sky stand-in for the HPM, in which case we are back to total conjecture.

Then we have a disagreement.

The point of my argument has been to suggest that the 055's electronics subsystems and the power they consume may differ substantially to that of Flight III Burke. That means coming up with plausible ways in which that extra power could be used. I consider a combination of increased radar power+more powerful active EW to plausibly fill up the gap. Obviously we have no idea if such a system exists on the 055 or not, but that isn't the point.


Just for the record, I don't believe that the 055 necessarily has 20MW of power output. At this stage I think any such claims should be taken with a big serving of salt. The point of my position over the last few pages has been to defend the plausibility of 20MW of power output.
 

Iron Man

Major
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Very interesting,
Surely not for a main reason Western countries in general don't have ( by ex Japan don't have, Taiwan also SK yes but only SRBM ) or very few Ballistic Missiles completely the opposite for China, Russia the specialists or others so can be interesting but not necessary as for Western countries in addition ABM are very expensive much more than ennemy missiles, really secondary weapons for China.
Actually, I think it's likely that the PLAN has a BMD requirement, judging by the tests of its HHQ-26 missile. I just don't think the USN and PLAN BMD requirements are the same. The USN is actually thinking of building a 20' AMDR and putting it on a large hull like the LPD 17 hull. It suggests they are quite concerned about BMD, which is not exactly surprising given the Chinese military has thousands of ballistic missiles and maybe several dozen of them designed specifically to make a love connection with their beloved carriers.

Then we have a disagreement.

The point of my argument has been to suggest that the 055's electronics subsystems and the power they consume may differ substantially to that of Flight III Burke. That means coming up with plausible ways in which that extra power could be used. I consider a combination of increased radar power+more powerful active EW to plausibly fill up the gap. Obviously we have no idea if such a system exists on the 055 or not, but that isn't the point.


Just for the record, I don't believe that the 055 necessarily has 20MW of power output. At this stage I think any such claims should be taken with a big serving of salt. The point of my position over the last few pages has been to defend the plausibility of 20MW of power output.
Right, we have a disagreement on the "plausibility" of your alternative power theories.
 
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