US Navy DDG 1000 Zumwalt Class

Jeff Head

General
Registered Member
That would be awesome if the 3rd Zumwalt has it! It would truly put the Zumwalt in a league of it's own with no peer.

The only down side is the darn thing is so costly they can only exist in extremely limited numbers but the early adoption of new technologies in the Zumwalts will hopefully pave way for eventual real economies of scale down the road.

I like to see 'frigate' size Zumwalts with 'smaller' rail guns sometime in the future.

The companies making the rail gun technology have already developed version that could be used for 127mm projectiles.
 

Jeff Head

General
Registered Member
I think they should just revived the old Iowa-class battleship and put railguns on it. With 9 × 16-inch railguns it will literally blow all competition away!

That's a great thought in principle perhaps, but I think this highly unlikely at this stage.

By Act of Congress the Iowas are being held in a certain stage of readiness, but that is more political and not really likely at this point.

The 1980s upgrade was very expensive and added Phalanx, Harpoons (x16) and Tomahawks (x32). But those are old box launchers for the Tomahawks which themselves are out of date.

No, to update all of those sensors, and then add more to accommodate the new large rail guns, along with the rail guns themselves, would simply be too expensive...and also very difficult.

Remember, you have to have a LOT of electricity to operate those babies and the existing propulsion/engine/electric system would have to be completely re-built to allow for it.

More tremendous cost.

At this stage, they would probably elect to build more Zumwalts instead...or build whatever follows it.
 

kwaigonegin

Colonel
I think they should just revived the old Iowa-class battleship and put railguns on it. With 9 × 16-inch railguns it will literally blow all competition away!

and to refurbish a ship into that would cost $25 billion and more ;)

I would imagined to generate enough power to have nine independent 16' rail guns on a single platform would require the energy output of a small city not to mention miniaturize enough to put on a ship even one as big the Iowa class... but yeah that would be one really badass vessel and truly an anti alien weapon systems if we're ever invaded by Decepticons or like those aliens from that 'Battleship' movie.
 
what I can't imagine, among other things :) is this:
The rate of fire is 10-rounds per minute
anyway, Navy Will Test its Electromagnetic Rail Gun aboard DDG 1000
The
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is evaluating whether to mount its new Electromagnetic Rail Gun weapon aboard the high-tech DDG 1000 destroyer by the mid-2020s, service officials said.

The
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Integrated Power System provides a large amount of on board electricity sufficient to accommodate the weapon, Capt. Mike Ziv, Program Manager for Directed Energy and Electric Weapon Systems, told reporters at the Navy League’s 2015 Sea Air Space symposium at National Harbor, Md.

The first of three planned DDG 1000 destroyers was christened in April of last year.

Ziv said 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. A rigorous study on the issue should be finished by the end of this year, Ziv said.

“I think it’s an ideal platform. There is a little bit more work needed to understand the details,” he added.

The DDG 1000 is 65-percent larger than existing 9,500-ton Aegis cruisers and destroyers with a displacement of 15,482 tons,.

The DDG 1000’s integrated power system, which includes its electric propulsion, helps generate up to 58 megawatts of on-board electrical power, something seen as key to the future when it comes to the possibility of firing a rail gun.

It is also possible that the weapon could someday be configured to fire from
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“We’ve looked at ships as small as DDG 51s. It takes something of that size. This isn’t something you are going to put on an LCS,” Ziv added.

Meanwhile, the Navy plans to test-fire its new Electromagnetic Rail Gun at sea for the first time in the summer of 2016 from on board the USNS Trenton, a Joint High Speed Vessel, service officials said.

The test shots will take place at
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. During the test, the rail gun will fire a series of GPS-guided hypervelocity projectiles at a barge floating on the ocean about 25 to 50 nautical miles away,

“We’re going to fire it against a floating target. We’re trying to gauge the ability to engage a target over the horizon,” Ziv explained. “We’re going to have a gradual ramp up and gather data. This is a significant event but it is also a key learning point.”

The Navy is developing the rail gun weapon for a wide range of at-sea and possible land-based applications, Ziv said. The weapon can fire guided, high-speed projectiles more than 100 miles, which makes is suitable for cruise missile defense, ballistic missile defense and various kinds of surface warfare applications.

The railgun uses electrical energy to create a magnetic field and propel a kinetic energy projectile at Mach 7.5 toward a wide range of targets, such as enemy vehicles, or cruise and ballistic missiles.

“The weapon works when electrical power charges up a pulse-forming network. That pulse-forming network is made up of capacitors able to release very large amounts of energy in a very short period of time. The weapon releases a current on the order of 3 to 5 million amps — that’s 1,200 volts released in a ten millisecond timeframe. That is enough to accelerate a mass of approximately 45 pounds from zero to five thousand miles per hour in one one-hundredth of a second,” Ziv added.

The hypervelocity projectile is a kinetic energy warhead, meaning it has no explosives engineered into it. This lowers the cost and the logistics burden of the weapon, Ziv said.

The rate of fire is 10-rounds per minute, Ziv said.

Due to its ability to reach speeds of up to 5,600 miles per hour, the hypervelocity projectile is engineered as a kinetic energy warhead, meaning no explosives are necessary. The hyper velocity projectile can travel at speeds up to 2,000 meters per second, a speed which is about three times that of most existing weapons.

Although it has the ability to intercept cruise missiles, the hypervelocity projectile can be stored in large numbers on ships. Unlike other larger missile systems designed for similar missions, the hypervelocity projectile costs only $25,000 per round.

The railgun can draw its power from an onboard electrical system or large battery, Navy officials said. The system consists of five parts, including a launcher, energy storage system, a pulse-forming network, hypervelocity projectile and gun mount.

While the weapon is currently configured to guide the projectile against fixed or static targets using GPS technology, it is possible that in the future the rail gun could be configured to destroy moving targets as well, Ziv explained.
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Jeff Head

General
Registered Member
I believe that they will first test the rail gun aboard either DDG-1000 or DDG-1001, and that DDG-1002 may well be the first one that is actually outfitted to operate it in service.

As to this:

Article said:
While the weapon is currently configured to guide the projectile against fixed or static targets using GPS technology, it is possible that in the future the rail gun could be configured to destroy moving targets as well.

We already know that the initial at sea rail gun tests next year will be performed against targets on the ocean. They will, IMHO, quickly move forward with making those moving targets.

They can shoot at static targets all day long on shore already.

Time will tell.
 
...
We already know that the initial at sea rail gun tests next year will be performed against targets on the ocean. They will, IMHO, quickly move forward with making those moving targets.
...

I have a dumb question :) I can imagine peppering a coast with a rail-gun:
ORD_Railgun_GA_CONOPS_lg.jpg

and I can imagine shooting it "point-blank" at an incoming threat ... but how are you going to use it against a warship at for example 25 nm maneuvering at for example 25 knots?? (I think this should be possible using Volcano ammunition with an IR seeker
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Jeff Head

General
Registered Member
I have a dumb question :) I can imagine peppering a coast with a rail-gun. I can imagine shooting it "point-blank" at an incoming threat ... but how are you going to use it against a warship at for example 25 nm maneuvering at for example 25 knots??
It's not a dumb question at all, Jura, and you really answered it yourself at the end in the parens in your post, Jura.

The same way we are preparing the munitions for the AGS, and the way Vulcan does it. The same way missiles do it.

You put the sensors on it that will allow it to do so.

IR detectors are one example. Laser guidance is possible (which means something would have to designate). There are others that have been micronized enough to pick up emmissions and home in on them.

Heck...you like the big guns on old battleships ships, right?

They hit moving targets miles and miles away did they not. Those types of basic calculations and firing solutions would work too...just greater range. But with a corresponding greater chance of missing too.
 
It's not a dumb question at all, Jura, and you really answered it yourself at the end in the parens in your post, Jura.

The same way we are preparing the munitions for the AGS, and the way Vulcan does it. The same way missiles do it.

You put the sensors on it that will allow it to do so.

IR detectors are one example. Laser guidance is possible (which means something would have to designate). There are others that have been micronized enough to pick up emmissions and home in on them.

Heck...you like the big guns on old battleships ships, right?

They hit moving targets miles and miles away did they not. Those types of basic calculations and firing solutions would work too...just greater range. But with a corresponding greater chance of missing too.
the last sentence actually summarizes what I was afraid of ... I mean assuming two km/s average speed of a rail-gun shell (or whatever it's called) shot to sixty kilometers (so that the values would be unachievable by any battleship ever built), it's half of a minute to travel ... if the target does 20 knots, it'll be about 300 meters ... and about the guidance, I wonder it the detector(s) would survive the firing (actually short-circuiting :) ... but I'm not saying they can't, just thinking aloud
 

Jeff Head

General
Registered Member
the last sentence actually summarizes what I was afraid of ... I mean assuming two km/s average speed of a rail-gun shell (or whatever it's called) shot to sixty kilometers (so that the values would be unachievable by any battleship ever built), it's half of a minute to travel ... if the target does 20 knots, it'll be about 300 meters
Yes, and your fire control would take all of that into account...and today's fire control would be smart enough to factor in recent maneuvering and program in predictability algorithms to be able to much better indicate where it would be 300m later.

... and about the guidance, I wonder it the detector(s) would survive the firing (actually short-circuiting :) ... )
They factor all of that into the design. They can make them not only small enough...but tough enough...to handle the forces resulting from the rapid acceleration of firing.
 
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lucretius

Junior Member
Registered Member
Word on the street is that the railgun engineers are having a very tough time designing a projectile which can contain explosives and survive the firing process.

At the moment it is "line of sight only", solid projectiles.
 
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