055 DDG Large Destroyer Thread

[shen]

Don't forget maintenance and reliability. You always have to take those things into consideration. Less moving parts = less things to break =less maintenance = higher uptime.

that's a good point. IPS introduces complexity and apparently is more noisy then more proven propulsion such as CODLAG. the main promise of IPS is that extra electric power would be available to future weapon systems such as railgun and laser. I question whether laser weapon will ever be a viable as a naval weapon. naval environment seems to be the most hostile environment for laser system vulnerable to high moist atmosphere.

 

[latenlazy]

that's a good point. IPS introduces complexity and apparently is more noisy then more proven propulsion such as CODLAG. the main promise of IPS is that extra electric power would be available to future weapon systems such as railgun and laser. I question whether laser weapon will ever be a viable as a naval weapon. naval environment seems to be the most hostile environment for laser system vulnerable to high moist atmosphere.

Maybe not in terms of offense, but lasers could viably and effectively replace CIWS in defensive roles. Railguns on the other hand...

Also, I was under the impression that IEPS is actually simpler and more robust than a mechanical setup, and is quieter...

 

[Jura The idiot]

...

With fixed panels you're still 75% combat capable if one is disabled...

Are you really??
Are you sure the overall performance drops linearly with the number of panels??
This was one of the first question I asked on the SDF (about half a year ago, in 'JMSDF Akizuki Class DDG (19DD AEGIS-like)' thread which is gone) and no one reacted to it ... so it seems I've got a second chance here heheh

 

[shen]

top to bottom
ESM mast
reserved space for trainable laser ciws
EO surveillance sensor
X band fixed panels
ECM panels
S band fixed panels

 

[Blitzo]

that's a good point. IPS introduces complexity and apparently is more noisy then more proven propulsion such as CODLAG. the main promise of IPS is that extra electric power would be available to future weapon systems such as railgun and laser. I question whether laser weapon will ever be a viable as a naval weapon. naval environment seems to be the most hostile environment for laser system vulnerable to high moist atmosphere.

I was actually under the impression that one of the (smaller) selling points for IEPS was its supposed lower acoustic signature than more traditional forms of propulsion.

 

[by78]

And it's not too different for european ships

Is that a Windows XP logo on the second console from the right?

 

[thunderchief]

Is that a Windows XP logo on the second console from the right?

Infamous Windows for Warships

 

[shen]

I was actually under the impression that one of the (smaller) selling points for IEPS was its supposed lower acoustic signature than more traditional forms of propulsion.

I've read more than one seemingly knowledgeable poster write on keypub forum that IEPS on Type 45 is louder than CODLAG on Type 23, too loud for ASW work. ASW oriented Type 26 is going back to CODLOG system. now this could be just peculiar view of RN, used to the extra quietness of the diesel electric setup on Type 23. for PLAN, coming from CODAD, IEPS is probably quieter.

 

[joshuatree]

Here's an x post over on CDF where I fulfill some hopes about what I want 055 to look like. Feel free to rip into and criticize it

12k ton full load, 170m length, 23m beam (so sixteen meters shorter than slava, but two meters wider overall).
Sensible, flared hull

The red boxes are areas for ciws placement -- there's one aft and one bow mounted, 052C/D/burke style. I'm thinking these two will be HQ-10. There's also two on either side of the smoke stack. One of these will be for Type 1130, the other will be a 30mm RWS. The thinking behind this, is that the 30mm RWS can be swapped out eventually for a FEL ciws later on. So, that makes 6 ciws mounts
x2 HQ-10
x2 Type 1130
x2 RWS/laser retrofit area

The green array atop the integrated mast is a fast scanning rate X band AESA for surface threats/horizon search
The blue array at the bottom of the integrated mast is the Type 346A radar, same as on 052D
The orange, faceted radome atop the bridge in front of the integrated mast, is an OTH radar (think mineral ME in the Herakles low RCS dome)

The entire integrated mast is "canted," so that looking forwards, you see the edge of the mast. Think Type 45's mast, only tilted 45 degrees right or left. That allows the main S band Type 346A radar to have similar coverage angles as on the 052D, and doesn't make the OTH radar placement obstruct the field.


Annotations:
1: PJ-38 gun in a stealthy cupola. This is a wholly optional feature and I added it more to retain the ship's somewhat stealthy profile, but also because I think it isn't entirely unrealistic, given such a mount isn't exactly high class engineering.
2: a bow and aft mounted 64 cell VLS, for a total of 128 cells. Not that exciting.
3: The short "arch" behind the integrated mast is the smoke stack for the four QC-280s. IR suppressed, with the actual smoke stack itself also very integrated into the main ship superstructure. Propulsion btw is of course IEPS.
4: A relatively large flight deck, able to handle future heavy lift helicopters. the hangar which isn't seen can hold 2 Z-18s.


Obviously everything isn't exactly proportional to one another, but this design basically has everything I particularly want out of 055. Sensibly stealthy (think slightly more stealthy than type 45), high mounted horizon search radar and integrated mast, along with higher placed Type 346A. Multiple ciws mounts, 128 VLS. And IEPS.

Okay so this is a revision of my 055 proposal, this time with a roughly drawn plan view.

Basically the only major change is that the side mounted ciws stations have been changed so that both ciws will have bow and aft firing arcs, this is done by elevating one ciws station above the other, and moving the lower ciws station outboard on its own sponson akin to the Type 45.

Nice proposal. I think 12k full load makes for a decent heavyweight in the Chinese navy. I would go with 730s instead of 1130s though, especially if you already planned for that many CIWS. I don't see the benefits outweighing the extra top weight. I would also see about putting the APARs not on the main mast so not all of your sensors are in one basket. Does you proposal provide any RHIB hangars?

 

[delft]

I've read more than one seemingly knowledgeable poster write on keypub forum that IEPS on Type 45 is louder than CODLAG on Type 23, too loud for ASW work. ASW oriented Type 26 is going back to CODLOG system. now this could be just peculiar view of RN, used to the extra quietness of the diesel electric setup on Type 23. for PLAN, coming from CODAD, IEPS is probably quieter.

Perhaps IEPS is so loud in Type 45 because some money has been saved. And more money will be saved in Type 26 without IEPS. The UK is building a brace of extremely expensive flattops.