055 DDG Large Destroyer Thread

[Blitzo]

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?

I have a later drawing where I add in RHIB and a few details.

But this is all done on paint so I've ignored many of the details. It's the overall configuration I'm proposing.


I think for a ship of that size whether it's 1130 or 730 shoudln't make much difference.

 

[shen]

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.

What are the cost savings on Type 45? What I have read is that the noise is mainly caused by the HV electric equipments. And the intercooler doesn't work well thus contribute poor fuel efficiency.

 

[FarkTypeSoldier]

Yep, the sponsons are for ciws, similar to the type 45. It shouldn't add to RCS that much because there are already ciws sitting there anyway. And it should be well worth the small RCS gain for giving all the two side ciws mounts the ability to fire forward and back.

--

Anyway, here's the drawing scaled with a few more ships:

Full size:

Please, Log in or Register to view URLs content!

Ok... seems logical enough to increase air defense capabilities...

Good drawings keep them coming

 

[latenlazy]

What are the cost savings on Type 45? What I have read is that the noise is mainly caused by the HV electric equipments. And the intercooler doesn't work well thus contribute poor fuel efficiency.

Not sure that HV electric equipment necessarily refers to IEP. Whatever the case, performance is about the specific execution of the technology, so maybe things just didn't turn out well during implementation.

 

[shen]

Not sure that HV electric equipment necessarily refers to IEP. Whatever the case, performance is about the specific execution of the technology, so maybe things just didn't turn out well during implementation.

High voltage equipments, probably the power switching equipments. I'm not technically literate enough to understand the real cause of the problems mentioned. I remember reading that when the Zumwalt program change from Permanent Magnet Motor to Advanced Induction Motor, a new regulator was necessary to keep the noise down. Type 45 uses the same type Advanced Induction Motor, perhaps something about that type of motor is noisy.

 

[indochina]

I Think ! WS-35 155mm + Type 055 will answer for AGS-155mm + DDG-1000 !

 

[Jeff Head]

I Think ! WS-35 155mm + Type 055 will answer for AGS-155mm + DDG-1000 !

The WS-35 in 155mm looks promising, but I am not aware of any 155mm naval gun project currently underway by the PLAN. As I understand it, the projectile was first unveiled last year, and the only platform at this point that can fire it is the PLZ-05 self propelled howitzer.

The specs of the PLA WS-35 are pretty nice:

​

Warhead Weight: 18 kg (39.6 lbs)
Accuracy: 40m (130 ft) CEP
MAx Range: 100 km (62 miles)
Guidance: GNSS, INS

Compare those specs however with the US Navy LRAP 155mm round that will be fired from the US Navy 155mm AGS on the DDG-1000 vessels. This projectile finished four cycle live-fire tests in June 2013 and is now in LRIP for the US Navy. A 127mm version has also been developed:

​

Warhead Weight: 12 kg (26.2 lbs)
Accuracy: 45m (145 ft) CEP
Max Range: 190 km (118 miles) (Note: 127mm projectile range is 100 km (62 miles))
Guidance: GPS, INS

Again, I am not aware of a 155mm naval gun that could fire the WS-35 being developed by the PLAN at this point.

Just for reference sake, the WS-35 bears a strong resemblance to the XM982 155mm Excalibur projectile developed by Raytheon Missile Systems and BAE Systems Bofors, which was put in service in 2007, and is now in use with the US Army, Germany, Canada, Norway, Sweden, and Australia. The Excalibur does not use rocket assistance like the WS-35 and LRAP, instead uses fins for long range guided glide path flight.

​

Warhead Weight: 18 kg (39.6 lbs)
Accuracy: 5m (16 ft) CEP
Max Range: 60 km (37 miles)
Guidance: GPS, INS

In February 2012, a US Marine Corps M777 howitzer in Helmand province, Afghanistan, was used to fire a single Excalibur round that killed a group of insurgents at a range of 36 kilometres (22 mi).

In February 2014, the U.S. Army and Raytheon fired 30 Excalibur shells at test targets to confirm the performance and reliability of the configuration before full-rate production of the new 1b round. Projectiles were fired from Paladin and M777 howitzers at ranges from 7 to 38 km (4.3 to 23.6 mi). Each shell hit within an average of 1.6 meters from the target.

BTW, the XM982 Excalibur will also be able to be fired by the Naval AGS.

 

[delft]

OT
Are all these non-rotating rounds? They seem to be full bore caliber rounds. What is the muzzle velocity?
Smooth bore tank guns firing sub-caliber rounds achieve a muzzle velocity of 1600 m/s or perhaps even more. Putting such a gun in a howitzer type mounting should achieve a much greater range.
I remember that in the '70's the US Army paid for the development of a rotating 155 mm round with on its nose a non-rotating quartet of fins to guide the round to a laser designated target. That seemed an idiotic thing to do and the development was duly aborted.
Near the end of WWII Germany developed a 310 mm smooth bore railway gun, from 280 mm rifled guns that were used as naval and railway guns, with a range of about 100 km and with a rocket assisted round with a range of 160 km - according to a Ballentine book about WWII guns - IIRC! Progress in gun craft over the last 70 years seems to be modest ( ) but there is a striking improvement in finding and hitting the targets.

 

[Blitzo]

Just for reference sake, the WS-35 bears a strong resemblance to the XM982 155mm Excalibur projectile developed by Raytheon Missile Systems and BAE Systems Bofors, which was put in service in 2007, and is now in use with the US Army, Germany, Canada, Norway, Sweden, and Australia. .

That is because that picture is the Excalibur round

We don't have a picture of the WS-35 yet, we only know its specs. Someone on the chinese internet had originally used the Excalibur round picture as a comparison, either trying to trick people,but more likely simply showing a product the WS-35 was meant to emulate

 

[i.e.]

OT
Are all these non-rotating rounds? They seem to be full bore caliber rounds. What is the muzzle velocity?
Smooth bore tank guns firing sub-caliber rounds achieve a muzzle velocity of 1600 m/s or perhaps even more. Putting such a gun in a howitzer type mounting should achieve a much greater range.
I remember that in the '70's the US Army paid for the development of a rotating 155 mm round with on its nose a non-rotating quartet of fins to guide the round to a laser designated target. That seemed an idiotic thing to do and the development was duly aborted.
Near the end of WWII Germany developed a 310 mm smooth bore railway gun, from 280 mm rifled guns that were used as naval and railway guns, with a range of about 100 km and with a rocket assisted round with a range of 160 km - according to a Ballentine book about WWII guns - IIRC! Progress in gun craft over the last 70 years seems to be modest ( ) but there is a striking improvement in finding and hitting the targets.

I thought having a rifled barrel does not preclude sub calibre sabot munitions. you can always fit a bourrelet to it to ensure the sub munition is spin free.

actually some spin is preferred for spin stabilization. even for fin stabilized projectiles.

the german big railway guns at end of ww2 are pretty much all rifled if I remembered correctly.
with the exception of the V-3 pump gun with its multi chambered design precluding an effective rifling.