US Navy DDG 1000 Zumwalt Class


Jura

General
now NavalTechnology (dated 13 December 2017)
US Navy’s second Zumwalt destroyer suffers electrical system issues
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The US Navy’s second Zumwalt-class guided missile destroyer, the future USS Michael Monsoor (DDG-1001), has reportedly suffered from electrical system issues during its builder’s trials.

A US Naval Sea Systems Command (NAVSEA) statement, which was cited by USNI News, said the destroyer has now returned to General Dynamics subsidiary Bath Iron Works’ shipyard in Maine.

The news was first reported by the Associated Press.

The vessel’s harmonic filter failed during the trials, restraining the electric system from operating at full power, NAVSEA said.

USS Michael Monsoor initially commenced sea trials from the shipyard on 4 December.

NAVSEA was reported to have further noted that the electrical system issue and delay in the trials would not affect the vessel’s expected delivery, which is currently slated for March next year.

USS Zumwalt, the lead ship in the class, had also experienced issues regarding its complicated integrated power system (IPS).

The same IPS is currently being deployed on all three of the US Navy’s Zumwalt-class ships.

The 610ft-long Zumwalt multi-mission surface combatants have a displacement capacity of more than 15,000t when fully loaded and can carry a maximum crew of 142 each.

In addition, the vessels use electricity generated by gas turbines to power all of its systems, including their weapons.

The ships have been designed for littoral operations and land attack missions, and are fitted with various new technologies such as the Advanced Gun System from BAE Systems.
"NAVSEA was reported to have further noted that the electrical system issue and delay in the trials would not affect the vessel’s expected delivery, which is currently slated for March next year."

I don't doubt the second copy will be commissioned to the USN next year, Spin Doctors creating the strength this way
 

FORBIN

Lieutenant General
Registered Member
Eventual gun for Zumwalt


U.S. Navy Rail Gun to Test Rapid Fire and Move Closer to Combat

Navy leaders believe the DDG 1000 is the right ship to house the rail gun but that additional study was necessary to examine the risks. Also, with a displacement of 15,482 tons, the DDG 1000 is 65-percent larger than existing 9,500- ton Aegis cruisers and destroyers.

Propelled by an electrical current and traveling at speeds up to Mach 7.5, the US Navy's Hyper Velocity Projectile can shoot out of a rail gun to destroy enemy ships, vehicles and missiles at ranges up to 100 nautical miles.
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Jeff Head

General
Staff member
Super Moderator
Eventual gun for Zumwalt
I believe this remains the preferred initial path for the Rail Gun of the 155mm aariety...and hope the 3rd ship actually launches with one on it.

There is also a 127mm variety that could conceivable be put aboard Burke DDgs. I expect of the system works well on a Zumwalt we will see it on other vessels later.
 

Jeff Head

General
Staff member
Super Moderator
now NavalTechnology (dated 13 December 2017)
US Navy’s second Zumwalt destroyer suffers electrical system issues
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:

"NAVSEA was reported to have further noted that the electrical system issue and delay in the trials would not affect the vessel’s expected delivery, which is currently slated for March next year."

I don't doubt the second copy will be commissioned to the USN next year, Spin Doctors creating the strength this way
Give it a break Jura.

The Zumwalt experienced a similar problem and it turned out to be minor.

This is a new system...you can expect issues.

But do not drum that up into something mkore than what it is.

What the US needs is about 20 Zumwalt DDGs, each with a t least one of the larger 155mm rail gund and two small 57mm rail guns for CIWS, and then the US needs about 24 Air Defense cruisers built on the same hull.

If we had the will...and eadership willing to continue to push the envelope and ensure the US Navy supremecy...that is what we would do.

I am not gvining up hope because I know a lot of eople in the defense inductry and in the military planning areas who have that goal still in mind despite the very bad decisions of the prior admin...and some of the decisions of the Bush admin as it related to the Navy.

All of it can be corrected...and the XUmwalt, despite what you may want to believe...is a cuting edge technology that will give the US three ships to begin with to test and improve very critical technology for the future at the least...and will be built in greater numbers t the best.
 
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Jura

General
Give it a break Jura.

The Zumwalt experienced a similar problem and it turned out to be minor.

...
Jeff have you heard of the Zumwalt since she arrived to Calif.?

she was
Commissioned: 15 October 2016
to the USN, so:
  1. what's her combat value?
  2. what's the status of her
    20 × MK 57
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    modules?
  3. can she sail under her own power now?
 
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FORBIN

Lieutenant General
Registered Member
U.S. Navy Rail Gun to Test Rapid Fire and Move Closer to Combat

Navy leaders believe the DDG 1000 is the right ship to house the rail gun but that additional study was necessary to examine the risks. Also, with a displacement of 15,482 tons, the DDG 1000 is 65-percent larger than existing 9,500- ton Aegis cruisers and destroyers.

Propelled by an electrical current and traveling at speeds up to Mach 7.5, the US Navy's Hyper Velocity Projectile can shoot out of a rail gun to destroy enemy ships, vehicles and missiles at ranges up to 100 nautical miles.
Please, Log in or Register to view URLs content!

I believe this remains the preferred initial path for the Rail Gun of the 155mm aariety...and hope the 3rd ship actually launches with one on it.

There is also a 127mm variety that could conceivable be put aboard Burke DDgs. I expect of the system works well on a Zumwalt we will see it on other vessels later.
For me right now a normal shell is not the concern for USN coz rails or lasers guns are able to destroy especialy new anti-ships ballistic missiles and normaly even those which have a hypersonic glider vehicle with a not straight trajectory different than acual anti-ships missiles for counter it actual ABMs especialy SM-3 have more problems remains surely possible modified missile with new algorithm or other for these trajectory problems the higher speed of these glider is not a real problem mainly trajectory.
But for them this trajectory and very high hypersonic speed is also a problem for accuracy you imagine well it is super difficult to control such machine.

More here
Hypersonic Missile Nonproliferation
Hindering the Spread of a New Class of Weapons

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Remains exist only 3 Zumwalt capable to provide enough energy for such guns... can provide IIRC 78 MW and Burke about 10 new maybe 20 ?
 
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Jeff Head

General
Staff member
Super Moderator
Jeff have you heard of the Zumwalt since she arrived to Calif.?

she was
Commissioned: 15 October 2016
to the USN, so:
  1. what's her combat value?
  2. what's the status of her
    20 × MK 57
    Please, Log in or Register to view URLs content!
    modules?
  3. can she sail under her own power now?
A fix for the engineering difficulties was found and tested in April of last year. The Zumwalt then implemented those fixes and tested the fresh water fix to the coolers during two underway periods the ship has had since that time.

Zumwalt is a new ship. She requires, like all completely new classes, significant time to initially establish the policies and procedures to utilize her on a regular basis. He first actual deployment has been planned for Early 2021 for a long time...so that she can establish these policies, procedures, guides, and then drill them into the crw, particularly the NCOs so she can then function with thise programs as her normal activities.

That is what she is doing now.

She will go out numerous times to determine the policies and procedures and to test them, including testing the weapons...which she has already started doing.

Anyhow, that's the status, Jura...you may think that her not being immediately available mean she is pork, or broken, o whatever you want to imagine...but it is simply not so.

Any brand new class with brand new technologies takes time to get worked up. The Ford is the same.

Time will tell whether they have more problems or not...but I am not overly concerned at this point given what I know of how these programs get introduced into the fleet.
 

Jura

General
... Jura...you may think that her not being immediately available mean she is pork, or broken, o whatever you want to imagine...but it is simply not so.

...
Jeff, I'm at loss about the Zumwalts

(in Internet I've read plenty of criticism, which I won't repeat here, as this criticism doesn't matter much even if it was all true: the class has been trimmed to just three ships, so it wouldn't make much of a difference if they stayed in port; it's completely different from the USN LCSs which is a mess Friday at 9:43 AM)

I think they should've axed the 1001 and 1002, too, and left just the 1000 as a Technology Demonstrator with the DBR put on (awful price tag, then, I know LOL! but the money for the project are gone anyway); of course they didn't, so I still wonder about what I asked as #2 Friday at 9:56 AM

what's the status of her
20 × MK 57
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modules?
because

"The Navy is working to change the mission of the planned $23-billion three-ship class from a land-attack platform that would support troops ashore to a surface-strike platform to conduct stealthy anti-surface warfare."
Electrical Problems Shorten Second Zumwalt-class Destroyer’s Builders Trials
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I mean they'd need LRASMs in Mk57 VLS for this role ... or not??

"Rear Admiral Ronald Boxall, the U.S. Navy’s director of surface warfare,
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that Zumwalt’s mission requirement for providing fire support ashore was written in 1995, but that the current strategic environment demanded a reevaluation of the ship’s role and a reorientation toward surface strike instead of land attack."
US Navy’s Most Advanced Destroyers to Get New Primary Anti-Ship Mission
December 14, 2017
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FORBIN

Lieutenant General
Registered Member
A fix for the engineering difficulties was found and tested in April of last year. The Zumwalt then implemented those fixes and tested the fresh water fix to the coolers during two underway periods the ship has had since that time.

Zumwalt is a new ship. She requires, like all completely new classes, significant time to initially establish the policies and procedures to utilize her on a regular basis. He first actual deployment has been planned for Early 2021 for a long time...so that she can establish these policies, procedures, guides, and then drill them into the crw, particularly the NCOs so she can then function with thise programs as her normal activities.

That is what she is doing now.

She will go out numerous times to determine the policies and procedures and to test them, including testing the weapons...which she has already started doing.

Anyhow, that's the status, Jura...you may think that her not being immediately available mean she is pork, or broken, o whatever you want to imagine...but it is simply not so.

Any brand new class with brand new technologies takes time to get worked up. The Ford is the same.

Time will tell whether they have more problems or not...but I am not overly concerned at this point given what I know of how these programs get introduced into the fleet.
When the naysayer is not aware :rolleyes: but for the guns we wait he need a Winchester it is all :D
 

Jura

General
Navy has no plan to introduce new ammo for Zumwalt destroyers

3 hours ago
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It’s been more than a year since the Navy decided to cancel procurement of an expensive new ammunition for its Zumwalt-class destroyers, but the service is still pondering how to best replace the munition, a Navy official said Wednesday.

In 2016, the Navy decided to stop buying the Long Range Land-Attack Projectile, or LRLAP, after discovering that its price had spiked to $800,000 per round. LRLAP was the only ammo developed specifically for the ship’s Advanced Gun System.

The problem, sources told Defense News then, didn’t lie with manufacturer Lockheed Martin, but with a program of record that decreased to three ships, making it impossible to benefit from economies of scale.

While the service is keeping an eye on a couple key technologies that could fill in the gap left by LRLAP, “there is not a plan right now for a specific materiel solution for the replacement round,” Capt. James Kirk, commanding officer of the destroyer Zumwalt (DDG-1000), told reporters at the Surface Navy Association symposium.

“We continue to monitor industry’s development and technical maturation. An example of that is the Hyper Velocity Projectile,” he said, referring to a high speed guided munition made by BAE Systems and originally developed for use in electromagnetic rail guns.

“We’re monitoring that technical maturation to see do we get there to get the kind of ranges and capabilities we want, that’s the right bang for the buck, cost to capability, for the Navy. We’re monitoring that, but we have not made a decision for that yet.”

Some of the delay could be due to a recent study by the Zumwalt requirements evaluation team, which re-evaluated how the Zumwalt-class could best meet the Navy’s operational needs. Based on the recommendations of the team, the service plans to shift the core mission of the ship from supporting ground forces close to the littorals to striking other surface vessels, Kirk said.

He added that once the fiscal year 2019 budget is released, the Navy will be able to more concretely detail whether that entails modifications or new weaponry for the Zumwalt-class.

“The president’s budget will hit, and we’ll have a little more ability to speak to exactly what we envision as the direction for the ship.”
so it's time to pull again Dec 23, 2014
heck,
It has been long noted by critics of the DDG-1000 program that placing all of these ambitious new technologies aboard one tightly integrated platform in one great transformational leap for military mankind has the effect of integrating all of their various technical and programmatic risks as well -- in my view, magnifying the total project risk of the effort well beyond the total risks had the R&D for each system proceeded independently. (Synergistic effects can work against you as well as for you, especially when it comes to managing project risks.)

The 155mm AGS is a gun system which will never see use outside of the DDG-1000 platform; and unless the Zumwalt Class supporters in industry and in the US Northeast are successful in bypassing the Navy and selling more Zumwalts directly to the Congress, there will only be three of these ships, and only six operational AGS gun mounts -- a far cry from the 64 mounts that would have been deployed had 32 Zumwalts been procured instead of three.

As things stand today, the greatest utility the 155mm AGS system has for the US Navy is to provide justification for claiming that the USMC's interim requirements for fire support have been covered.

Once AGS has been declared to have reached IOC, then the Navy leadership will certify that the interim requirements for fire support have been met, and will give no more attention to pursuing further advancements in conventional naval gun technology.

Once that piece of paper has been signed, then it won't matter to the Navy leadership if another 155mm LRLAP round is ever fired again for any purpose whatsoever -- more so if the Zumwalt design as an integrated platform fails to live up to expectations in some major way and the three ships are then quietly set aside to guard their respective piers.
somebody said under the article
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do you know what percentage of it (and of the article itself) could be true? just asking ... (from the middle of Europe)
as you can see, three years ago I had given the Zumwalts the benefit of the doubt

EDIT I feel it's time to also repeat Friday at 9:56 AM
...
Commissioned: 15 October 2016
to the USN, so:
  1. what's her combat value?
  2. what's the status of her
    20 × MK 57
    Please, Log in or Register to view URLs content!
    modules?
  3. can she sail under her own power now?
I wonder how is she going to strike other surface vessels, and when

("... the service plans to shift the core mission of the ship from supporting ground forces close to the littorals to striking other surface vessels, Kirk said." in DefenseNews link here)
 
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