U.S. Navy to Deploy Rail Guns by 2011 1172
Walter Francis writes "The U.S. Navy has apparently been busy. They have been focusing heavily on the next generation of weapons and propulsion systems, including Microwave, Laser, and Electromagnetic-Kinetic weapons, more commonly known as railguns. What specifically surprised me was the fact that the Navy plans to deploy these systems as early as 2011, on their DD(X) frigates. The range of these rail guns is estimated to be over 250 miles."
Suggestion for their autoexec.cfg (Score:5, Funny)
set cl_maxpackets 120
set rate 20000
set snaps 40
set cg_fov 80
Railgun project link . Video also (Score:5, Interesting)
In other news... (Score:5, Funny)
Re:In other news... (Score:5, Interesting)
For example -- even the first generation railguns have a muzzle velocity (intentionally limited) of 2.5 km/s (which is Mach 7.5, presumably at sea-level pressure -- the article doesn't say). That's awesome for aiming, time-of-flight, and kinetic energy delivery so great you don't even need messy exposives.
But, what about the sonic boom? I mean, even a small thing crossing the speed barrier makes a noise (ref: a bullwhip) -- how loud will it be on deck with n of these things breaking the sound barrier every 10 seconds?
Will they enclose them in something, build a sound baffle of some kind, or just issue really good hearing protection devices for those working in the vicinity?
Sorry to be serious and all, but I'm just curious
Re:In other news... (Score:4, Interesting)
I stood about 100 yards away from the New Jersey when she fired all guns starboard. The heat & energy from those guns was incredible. Image an order of magnitude higher. Those little aluminum FFG's would melt their superstructure with one round.
Re:In other news... (Score:5, Informative)
Re:recruiting (Score:4, Funny)
Railgun tidbits (Score:5, Interesting)
How prophetic of me [slashdot.org]...
Re:In other news... (Score:3, Insightful)
im no physics expert but wouldnt it be silent? (Score:5, Interesting)
Am i right, or has high school physics failed again? (or rather did i fail physics...)
jeff
Re:im no physics expert but wouldnt it be silent? (Score:4, Funny)
Re:im no physics expert but wouldnt it be silent? (Score:5, Funny)
Re:Suggestion for their autoexec.cfg (Score:5, Informative)
name USS Abraham Lincoln
Well, Abraham Lincoln wouldn't be a name for a destroyer. President names are used for Nimitz-class super carriers. In fact, Lincoln is already taken by the CVN-72 [navy.mil]. I think destroyers take their names from famous Navy personnel.
Re:Suggestion for their autoexec.cfg (Score:5, Funny)
I can just hear the radio messages:
[GIJOE] we gots a.q. n00bs coming up on the left
[G-Unit] aight i'm campin' w/ rail gun
*G-Unit kills a.qn00bie with headshot*
*G-Unit kills i.h8.4m3r1c4ns with headshot*
[al qaeda pwns] (squiggles with dots) americans hax0rs! (squiggles w/ dots) allah will ban you!11!!11
*G-Unit kills al qaedapwns with headshot*
Re:Suggestion for their autoexec.cfg (Score:5, Funny)
Original (or as close as I know it) Naval Institute's Proceedings (1989) version:
"Two battleships assigned to the training squadron had been at sea on manoeuvers in heavy weather for several days. I was serving on the lead battleship and was on watch on the bridge as night fell. The visibility was poor with patchy fog, so the Captain remained on the bridge keeping an eye on all activities. Shortly after dark, the lookout on the wing of the bridge reported, "Light, bearing on the starboard bow."
"Is it steady or moving astern?" the Captain called out.
Lookout replied, "Steady, Captain," Which meant we were on a dangerous collision course with that ship.
The Captain then called to the signalman, "Signal that ship: We are on a collisoon course, advise you change course 20 degrees."
Back came the signal "Advisable for you to change course 20 degrees."
In reply, the Captain said, "Send: I'm a captain, change course 20 degrees."
"I'm a seaman second class," Came the reply, "You had better change course 20 degrees."
By that time, the Captain, was furious. He spat out, "Send: I'm a battleship, change course 20 degrees."
Back came the flashing light: "I'm a lighthouse!"
We changed course."
If History Is Fulfilled... (Score:5, Funny)
Re:If History Is Fulfilled... (Score:3, Funny)
Wait, so, you're saying putting your mouse over the link and looking down before clicking is an extra couple steps then? And I thought I was lazy!
Are You Ready? Go! (Score:5, Funny)
Forget the railguns--I wanna hear more about these Dance Dance Xtreme frigates--sounds like a great way for swabbies to get in shape and destroy the enemy at the same time!
P.S. Linking to PDFs in article summaries makes baby Mozilla cry.
Re:Are You Ready? Go! (Score:3, Funny)
I hear their dancing to some kickass tracks laid down by the Party Posse. Yvan eht nioj, hctib.
Re:Are You Ready? Go! (Score:4, Funny)
US Navy to Deploy Rail Guns by 2011 (Score:5, Funny)
Re:US Navy to Deploy Rail Guns by 2011 (Score:3, Funny)
Re:US Navy to Deploy Rail Guns by 2011 (Score:3, Funny)
Re:US Navy to Deploy Rail Guns by 2011 (Score:5, Funny)
Kim Jong Il: A headshot from the other side of the map?! WTF?!! OMFG!!! GAY CHEETR!!!
Just wait 'til the Army starts putting their wallhacking radar vision into widespread use...
Re:US Navy to Deploy Rail Guns by 2011 (Score:4, Funny)
Click here [reference.com] for more detailed information about your question.
Haven't you forgotten something, Captain Avatar? (Score:5, Funny)
It's our only hope against Desslok and the Gamalons!
Sing it with me now... "We're off to outer space..."
Re:Haven't you forgotten something, Captain Avatar (Score:5, Informative)
We're leaving Mother Earth
To save the human race
Our Star Blazers
Searching for a distant star
Heading off to Iscandar
Leaving all we love behind
Who knows what danger we'll find?
We must be strong and brave
Our home we've got to save
If we don't in just one year
Mother Earth will disappear
Fighting with the Gamilons
We won't stop until we've won
Then we'll return and when we arrive
The Earth will survive
With our Star Blazers
Back in my day, we had Star Blazers, Astro Boy, and Kimba the White Lion. We didn't have no 'Adult Swim' or fancy cable so we had to stand next to the TV doing the UHF stance and stare through a staticy mess to see our anime, and WE LIKED IT!
Re:Haven't you forgotten something, Captain Avatar (Score:5, Funny)
(Finally, my nick pays off!)
Re:Haven't you forgotten something, Captain Avatar (Score:3, Funny)
Since it's a 200KB PDF file... (Score:5, Informative)
Two things . . . (Score:5, Informative)
2. Nitpick: the term 'DD' generally denotes a Destroyer, not a Frigate ('FF').
It's about Artillery silly... (Score:3, Informative)
Re:Tactical Flexibility (Score:5, Insightful)
"Captain! They've hit our ammo storage!"
"Not to worry, it may be damaged, but at least the rest of the ship won't be destroyed."
Re:Tactical Flexibility (Score:5, Informative)
In other words, it brings a lot to a Real World(TM) battle.
Re:Tactical Flexibility (Score:5, Insightful)
Chris Mattern
Marines love the big guns (Score:4, Insightful)
Actually Marines with 20 miles of the shore want them.
Re:Tactical Flexibility (Score:3, Insightful)
Faster cycle time, more shots without having to reprovision/reload, projectile will travel faster than a missile and be impossible to decoy/evade. All good things.
Re:Tactical Flexibility (Score:5, Informative)
1: It cannot be tracked in a meaningful amount of time. In other words, because of the comparatively high speed (6 minutes in the air, as compared to 60 minutes or 10 minutes for the ERGM and LRLAP), and significally smaller size (30 inches as compared to 60 inches for an ERGM or 88 inches for an LRLAP) and higher impact force (16.9 MJ as compared to 2.2MJ and 7.8 MJ for the ERGM and LRLAP respectively) the rail cannot be anticipated anywhere nearly as easily.
2: Because of this, it is almost impossible to deflect it/move out of the way.
3: Also, the cost of individual rails will be significantly less than the cost of an individual missile.
Re:Tactical Flexibility (Score:3, Insightful)
Re:Tactical Flexibility (Score:3, Insightful)
Re:Tactical Flexibility (Score:3, Insightful)
Re:Tactical Flexibility (Score:5, Interesting)
A cruise missle isn't really that small -- currently they are fired only from destroyers and cruisers, or large submarines. Each missile is large, having to carry both the fuel and the warhead. While the rail gun itself is larger than a cruise missle and launcher, each rail round is much smaller and much safer since it isn't a mix of high explosives and rocket fuel waiting to be hit by enemy ordinance. And if its speed you want, then the limiting factor is mass, and you can get a lot more rounds for less mass with a rail gun.
I don't see what the distance to the target has to do with its value... Why spend half a million destroying a warehouse when you can use a comparitively free lump of metal?
All in all, I think rail guns are a vastly positive improvement in weapon mobility. I don't see missles as having any advantage, outside of extra range.
Re:Totally wrong (Score:4, Interesting)
Sorry to interject, but 80MW is NOT sufficient power to run both the weapons systems and the propulsion. Keep in mind that 80MW is *maximum* power output. Maximum power output will drain the fuel stores extremely fast. Presumably, some of that power will be automatically assigned to defensive and communication systems such as RADAR, GPS, Radio, Satellite Uplink, Targeting, and simply keeping the lights on. With the remaining power, the ship can either move under military power or charge the rail gun. It simply doesn't have enough power to do both.
Even more interesting is that the article spoke of adding Masers to the inventory of high energy weapons. Now the commander will have one MORE decision to make: Does he move the ship, charge the railguns, or fire the Masers? He'd better make the right decision, because the boat will be sunk if he makes the wrong one. Not to mention that his ship wouldn't be able to sustain battle for more than a few hours. At 80MW, the ship will be running about 130 liters of fuel through the turbines each minute. He simply can't stay in a firefight for very long that way.
No, unless they start equiping these ships with Gigawatt nuclear reactors, they won't be able to help very much in a surface engagement. What they WILL be able to do (and thanks to the posters who pointed this out to me) is bombard stationary installations like RADAR stations, Airfields, and beach defenses. The Marines will love them, and they'll cost less than pulling the battleships out of reserve.
Re:Tactical Flexibility (Score:4, Interesting)
Is it? All that energy has to come from somewhere. If you're charging your railgun with a few hundred gigajoules of energy, you're burning a LOT of fuel. For a Nuclear Vessel, this wouldn't be that big of a deal. It would simply need to carry a bit more material, or double its refueling stops. (e.g. Instead of every 10 years, they refuel every 5 years.) But these ships are Gas Turbine powered.
rate of fire
This one I definitely don't follow. Where's the energy coming from for a high rate of fire? Does the captain have to order a pre-charge cycle? Would that mean that he'd be able to fire 5-10 shells before having to wait for a 10-20 minute recharge cycle? That's going to have a serious impact on the ship's tactical ability.
Also a bit of safety thrown in- the rail gun rounds require no propellants (read: explosives), so there's no the problem of a hit to a turret sparking off a chain reaction of explosions.
Fair enough. Magazine hits are always a big problem. But couldn't one argue that the magazine storage no longer matters when fighting battles with such powerful weapons? If you're hit by a nuke/railgun/maser/large missile, your ship is dead anyway.
What this effectively does is put the firepower & range of the battleships into the smaller ships.
This is definitely nice. But what I'd like to know is if military doctrine has swung back in the direction of Battleships? AFAIK, the invention of the Aircraft Carrier made Battleships obsolete. Since a carrier can launch planes at nearly any range (even outside the 250 miles of the Railgun), it has far better strike capability. In addition, pilots provide intelligence to both the offensive weapons and evasive maneuvers that not even a missile can achieve.
Re:Tactical Flexibility (Score:5, Informative)
Additionally, it's a lot cheaper and safer to drop shells on an enemy from 250 miles away than it is to send an aircraft. Even though these shells are ballistic the do have guidance systems that let them control their 'fall'. They should be just as accurate as a cruise missle.
The rate of fire is slower than with traditional artillery(6 per minute), but their time to target is faster. So they can drop the same amount of rounds in a 15 minute engagement.
They won't replace carriers, but may lighten the load for the pilots. If we can take out the radar sites with these before sending in the planes it will save some lives.
Arnie.. (Score:4, Funny)
Seriously, what better character to fire this weapon than our very own Governator?
Alright you Illegal Aliens..line up.. preferably in a straight line..Hold...
I love this quote (Score:5, Funny)
Indeed.
Re:I love this quote (Score:5, Funny)
Re:I love this quote (Score:5, Funny)
A bit excessive - 640kJ should be enough for anyone!
[ducks]
Re:I love this quote (Score:5, Funny)
Come on, that "(kilo|mega)tons of TNT" thing is getting old, but I'd sure like to see a 5 kilosnickers railgun.
Besides, a weapon that sucks millions of joules out of a target would be much better. You could use all that energy to hit a second target or as a fast source of energy (for everyone who needs a few millions of joules of energy in the next 0.2 seconds).
Mr Rumsfeld = Dr Evil? (Score:4, Funny)
Another source, details, not crashing yet (Score:5, Funny)
I can't read the original, but according to the link I'm including, they're not just talking railguns - they're also talking free electron lasers and masers. Now, if only they'd provision a banana-fana-fo-faser, we'd be set.
Re:Another source, details, not crashing yet (Score:5, Informative)
Here are some actual other sources. DD(x) Frigate info [globalsecurity.org]
Cost of the DD(x) frigate, and rollout schedule [cbo.gov]
Re:Another source, details, not crashing yet (Score:4, Informative)
Frigate != Destroyer
DD, DDG, DD(x) = Destroyer
FF, FFG = Frigate
Sorry to jump on this, but having lived aboard DDG-56 for 3 years, this mistake is akin to me referring to Linux as a program for Windows. Irritating.
Why wait till 2011! (Score:5, Interesting)
Obligatory "build-your-own-railgun-link" (Score:5, Informative)
I love this quote (Score:4, Funny)
Well no shit. Really?
I love my country. I hate what we have let it become
Respawn (Score:5, Funny)
Re:Respawn (Score:5, Funny)
According to the commander in chief and his advisors, there already are two respawn points: heaven and hell. Supposedly allies respawn in heaven, opfor respawn in hell.
An Interesting Technology (Score:3, Insightful)
Re:An Interesting Technology (Score:3, Interesting)
Re:An Interesting Technology (Score:3, Insightful)
I think the purpose here is fighting a war without risking your own solders' lives. You could shell a bunker 250 miles inland at more than 6 rounds per minute, and the projectiles would impact at mach 4.
Furthermore, their main incentive is that it costs less than conventional weapons. (RTFA)
Terrorism isn't the only issue (Score:5, Insightful)
Terrorism, state-sponsored or otherwise, isn't the only military issue in the world. The Cold War is long over--but in its place have appeared a number of smaller-scale regional conflicts. Yugoslavia, Afghanistan, Iraq are three that spring to mind. North Korea is certainly another potential threat that any responsible military commander will consider.
Do you have a world atlas handy? No? Click this link [miningco.com], it will take you to a small map showing North Korea--with a handy map scale in the lower left hand corner. You'll note that the entire Korean peninsula is less than 200 miles wide--meaning that a small handful of U.S. Navy destroyers armed with these railguns could effectively put incredible firepower onto practically any spot in either country. In practice (because there is a range of high mountains running like a spine down the eastern side of the peninsula) you'd have to position 2-3 destroyers on either side, and you'd have 100% fire cover.
That changes all sorts of equations. It lessens aviation requirements in the Korean theater, it lessens troop requirements in theater, and it is a technology that is easy to demonstrate--but well beyond the technological reach of the North Koreans (first because they have limited metalurgical assets to develop the guns, and second because they have very limited ability to find and thus target a ship far out at sea).
The effect may indeed impact anti-terrorism
The ability to inexpensively drop heavy-duty firepower onto the Korean peninsula raises the very real prospect that the U.S. would not need to keep 35,000 combat troops, and thousands of Air Force troops, not to mention planes, ships, and other equipment, focused on North Korea. Some of those forces could be put to better use--such as tracking, identifying, and killing terrorists.
steel beams from space? (Score:4, Interesting)
did i dream this? i don't think so but i guess it's possible. then again i didn't think rail guns or private space flights were coming anytime soon either.
Re:steel beams from space? (Score:5, Interesting)
For a fictional view of how devastating this could be, see Niven & Pournelles 'Footfall'.
The scary part is that we could do this with current technology. It would just be horribly expensive. But once launched, the owner would have the ability to destroy any selected square meter of the Earth's surface, and there's nothing anyone could do about it (aside from shooting down the satellite).
Re:steel beams from space? (Score:3, Insightful)
Re:steel beams from space? (Score:5, Funny)
Yeah, but... (Score:5, Funny)
Yeah, but at that distance, the enemy will be smaller than a single pixel... you won't even be able to see him behind your little aiming dot.
Leaving the term "Superpower" behind. (Score:5, Insightful)
Many new weapon systems currently deployed or being staged for deployment are many years advanced, even decades, compared to other nations that it begs to question.
Will the US be perceived more as a threat to the world or will the world be perceived as less of a threat to the US. There is a distiction there that might escape people.
The NAVY is moving their big obvious targets further out of range of land based weaponary while also developing non-interceptable technologies (as in very fast projectiles ala a RG). The Air Force is set to deploy the F22 which is literally can fight a squadron of previous generation fighters on its own. With GPS guided everything it puts a big stand off range.
The only wrench in the scenarios, is how do you protect your populace versus terrorist who don't play by normal rules? Will it come down to holding "terrorist" countries hostage to the actions of a few of their people or the groups they support?
Scary times.
Wrong on all counts (Score:3, Interesting)
America spends more than say Europe, but has declined quite a bit from the Cold War peak of the late 80's. Most notable is that the absolute size and war fighting capability of the Army has declined dramatically from the Gulf War 1 era, particularly sea lift. The US isn't capable of something like Gulf War 1 anymore. All we have left is strategic bombing or Nukes which is a poor choice.
Current defense spending
Re:Leaving the term "Superpower" behind. (Score:5, Insightful)
The Roman Empire was defeated although it reached disproportionate economic and military expansion for its era. Same thing for every single Empire (including Dr.Evil's) through history.
So I'm sorry to break this to my american fellow geeks but the greatest nation of the world can produce as many railguns as it can/wants, the second law of thermodynamics has predicted its downfall upon its conception 300 years ago.
That is alright though, that is quite alright! See how the Germans, French, British have progressed since they abandoned their nationalistic bubble of delusion about Grandieur and Fanifested Destinies and such... (well I don't know about the British, it appears sometimes they haven't gone passed WWII)
The world will be a much safer place, and international peace and cooperation well founded, once USA realizes that there is nothing special about USA after all. It's just a passing moment of history that led to this economic and military growth, that's all.
Hyperpower my ass - give it 50 years (Score:5, Insightful)
Give it 50 years and the US will have competition on two fronts - China and the EU. The EU becomes more and more unified every year, and as it does so, the economic and military power of the area comes closer and closer to that of the US (the EU as a whole already surpasses the US in terms of GDP). So on one hand, you have the "friendly" EU competition. On the other hand, you have China - growing incredibly rapidly both technologically and militarily. Plus, they have the population to back up the technology on the ground if it ever came to that.
If you project out, by 2050 you have three huge global superpowers. All nuclear, all space-capable. And who knows what the global political scene will be like - tensions between the US and Europe have never been higher in recent memory, and the true goals of China in areas like Space are yet to be seen.
It's going to be an interesting 50 years for all of us, and rest assured, the US will not remain the "sole superpower" for very long in a historical sense. I mean, just 150 years ago ( a small blip on the global timeline ) the UK was the worlds superpower. 100 years ago the US was in such a depression people wondered if the whole nation was going to collapse. 50 years ago half the western world was under the control of Hitler.
The point is that in historical terms, the length of time the US has been dominant is miniscule. Let me know when the US has been the dominant global superpower for a thousand years ( see: Rome ) then we can start talking about "hyperpower".
The EU may not be around in 50 years... (Score:4, Insightful)
China will become less of a threat the freerer its people become. Capitalism will lead them that way. The Chinese government knows this but is smart enough to NOT follow Russia's footsteps.
Re:Particularly true of the Navy. (Score:5, Informative)
Err, how about all of them ? Or do you think men and equipment just teleport themselves to the theatre? (The Air Force can't move all that stuff, it's not cost effective and in some cases not possible; think heavy artillery.)
You obviously have no clue.
Nice improvements! (Score:5, Funny)
That is damn impressive! The railgun I used back in the mid 1990s could barely fire all the way across 2fort4!
Cold war thinking (Score:5, Insightful)
The attack on the USS Cole in Aden, on 12th October 2000, is a typical example. A small speedboat loaded with explosives was navigated to a position against the destroyer's hull and exploded, 17 sailors were killed. A friend of mine was a medical orderly on a Royal Navy anti-submarine cruiser which rendered assistance and described it as a scene of devastation.
A rail-gun is a formidable weapon, but its only really of use for attacking a rival navy, or a military establishment on a coastal shore. No nation nowadays has that sort of power. The USSR's navy is largely laid up in shipyards and few ships are still serviceable. China has a warm-water navy and has shown little interest in Ocean-going ships for over a millennium. N.Korea, Libya, Iran aren't naval powers in any real sense at all.
Which leads me to the conclusion that the USA sees Britain or France as the biggest threat to its current security! A rail-gun won't defend against a zodiac full of nitrate explosive, or a saboteur with a limpet mine.
It seems to be thinking grounded in the 1980s when the *enemy* had Aircraft-carriers, destroyers, cruisers and subs. That just doesn't seem to be the case now
Bet someone's said this in shorter form now and I get modded redundant
EM Rail Guns are so cool (Score:5, Interesting)
Return of the big gun? (Score:5, Interesting)
The era of the big gun pretty much ended with the battle of Midway. After that, it became obvious that aircraft carriers could both defend themselves and attack enemy shipping without need for battleships and their guns. (Or, more to the point, without big guns and the battleships needed to haul 'em around.)
But I wonder what this development means? The railgun projectile is better in several respects than a missle: cheaper, higher rate of fire, harder to spoof or shoot down, apparently more hitting power. It seems to me that this railgun is closer to carrier based aircraft in relative performance than any guns have been since before WW2.
It's almost enough to make one think that the big gun could be effective again. Envision the "bad guys" having a submarine with railguns sneaking up to within 200 miles of a carrier battle group. It could surface to rapidly launch a few dozen hypersonic projectiles at the carrier. If it could launch a big salvo rapidly enough, the carrier would be in a world of hurt. The sub probably wouldn't survive the counterattack, but to disable a carrier that's probably a good trade.
Can an effective ASW umbrella be extended to beyond the range of these guns?
Hmmm.
GPS Guidance? (Score:4, Interesting)
Methinks "a lot"...
Facts not supported (Score:5, Informative)
1. That this warship class will enter service in 2011:
"When the U.S. Navy's first integrated power system (IPS)/electric drive warship arrives in 2011 as the DD(X), the service will mark a technological breakthrough
2. That this warship class will debut without a rail gun or any other advanced weapon system:
" When the new ship arrives in service it will be armed with very advanced, but conventional weaponry, including two United Defense 155mm Advanced Gun System cannons and an 80-cell vertical launch system for various guided missiles. But these systems are stepping stones to greater capabilities
3. The Navy won't even decide whether to fund a rail gun for years:
"Whatever investment decisions are made for weapons the next several years, the Navy already is engineering the potential these technologies require, according to Collins and his IPS/electric drive team for DD(X)."
The speculative linked white paper goes no further, advocating that a rail gun *proof of concept test* *could* happen by 2008:
"A focused technology development program that leads to a series of experiments that culminate in a full-scale extended-range naval rail gun proof-of-concept demonstration in fiscal year 2008
is a sensible approach."
For a sense of how little this means, consider there was a successful "proof of concept" demonstartion for airborne anti-laser systems -- "Star Wars" SDI technology -- in 1984 [af.mil].
_Practical_ military purposes (Score:4, Interesting)
Take a look at the UK for an example. They opted for a small fleet of SMALL aircraft carriers that are designed to rush in and handle local skirmishes and cost a helluvalot cheaper than their American leviathan counterparts and their trailing battlegroups (which are there just in case the Soviet Block comes back together and stops being poor all of a sudden, Marxism is revived, all western culture as we know it is abolished there and the Japanese decide to attack Pearl Harbor. Again.)
Yes, I know (;-)), A real live railgun will give any fps gamer who can pronounce "quake" a hard-on, but guys (I'm talking to the americans among us
Get you more IT jobs? Encourage tech-oriented businesses with tax levys? Hell, give it to NASA and have them build a space elevator before China does, that'll be a sure way of giving all us geeks an even bigger erection...
All you have to do is look at [modern, developed, not-dirt-poor] self-oriented countries such as Australia or Germany to see how useful a taxdollar can be when put on the right track.
Re:Range (Score:3, Insightful)
Re:Range (Score:4, Insightful)
Re:Range (Score:5, Insightful)
The 250 mile range is the ballistic range: a miss means something near the target gets pulped. The direct-fire range, where a miss could hit something well past the target, is probably only around 30 miles.
Don't forget ricochet.... (Score:5, Interesting)
I've seen plain old ordinary machine gun rounds do some amazing and unexpected things. I expect that scales with velocity.
Interesting point from the article - the author sees this system fitting into existing 5" gun mounts, and sees one gun as being able to deliver equivelent fire as a squadron of F18s. That means destroyers become as powerful as aircraft carriers.
How about that - the return of the battleship.
DG
Re:FYI from a Navy employee... (Score:3, Interesting)
Re:Other issues at stake? (Score:5, Insightful)
What makes this gun so revolutionary is a) safety for the user. No gunpowder to go boom at inconvienent times and b) cost per round. Rather than spend the million+ to fire a Harpoon or SLAM at a target, we can now lob a few shells from this baby at it, at much lower cost.
Re:Yes!!! (Score:4, Funny)
Besides, there's no way to really know how many died, so we shouldn't take the effort to count.... [civilians.info]
Re:Could this gun be used to shoot stuff into orbi (Score:4, Interesting)
The lowest commonly-used orbits are in the 200-300 mile range, so this couldn't hit them. Even something in a 100-mile transfer orbit is iffy. However, with good enough targeting, it could hit a ballistic missile during boost or re-entry, and could probably hit any aircraft.
Re:So, um (Score:3, Informative)
I wish I could remember where I read it
Re:Uh. Thoses ICBMs helped fall the USSR. (Score:3, Insightful)
Range to horizon? Really? (Score:5, Informative)
Hmm... Well, let's ask Mr. Google. Hey, Google, how far is it to the horizon at sea level? In fact, say you're actually 100' up on the bridge of a cruiser. Google says: "11 miles" [boatsafe.com].
So, yes, 250 miles is farther than the horizon. Theoretically.
And is this a new thing? Well, let's let Google tell us again...
So, in other words, nothing new here in terms of "targets that have no way of retaliating". That's been the case since WWII, when in nearly all of the carrier battles, the opposing forces would be over the horizon and everything was either via plane or via large guns with planes as spotters.
-T
Re:I think you mean France (Score:3, Interesting)
Not to mention that France only has ONE active aircraft carrier (Charles de Gaulle) which is about 1/4th the size of a standard US carrier. How pathetic is that? At least they used Nuclear instead of Diesel.
Speaking of which, I don't understand why they don't simply fit these destroyers with Nuclear Power Plants instead of Gas Turbines. Sure, the turbines are powerful, but they won't provide the same amount of power draw that nuclear plants can. I'd hate to be the captain who
Re:I think you mean France (Score:3, Interesting)
A fair enough answer. I have to mostly guess at the power requirements due to the exact design being classified, but there is a lower ceiling on how much power these things can use. The laws of physics don't allow you to obtain energy for free. It HAS to come from somewhere.
One gentlemen was kind enough to provide some numbers [slashdot.org] on energy delivered to a target. 16.9 MJ is tremendous in of itself
Re:To quote the greatest (Score:3, Funny)
Don't get too proud of this technological terror you have constructed. The ability to destroy target from 250 miles is insignificant next to the power of the Force...
in my pants.
Re:Arms Race / EMF (Score:3, Interesting)
My other question is how well shielded are these things?
That's an interesting point. Unless they've got some really fancy shielding, as soon as they pull the trigger, anybody who can do triangulation with radios will know exactly where they are.
Perhaps their war plans all involve opponenets who can't shoot back.
Re:Arms Race / EMF (Score:3, Funny)
Then what do you plan on doing? Assaulting the carrier battle group that the railgun equipped vessel would be a part of?
Good luck with that.
Re:Counter (Score:5, Interesting)
Conservation of momentum. You cannot blow a projectile into "harmless" bits, because the total momentum of the pieces remains the same. Instead of getting hit by one big projectile, you get hit by a bunch of dust, or vapor, or droplets of liquid metal. The total impact impulse will remain the same.
You also can't just deflect the projectile, because the force applied to deflect the projectile would be equally applied to the deflector device. Even if you did this via a magnetic field, the deflector would suffer damage.
There's simply not much you can do to stop a projectile moving at such velocities.
Re:Luckily this is the US (Score:5, Insightful)
I did.
The advantages of railguns have little to do with their effectiveness. As far as I can tell, they're not remarkably more effective than the guns mounted on naval warships now -- you know, the ones that fire explosive shells. The damage done by a railgun projectile is from the kinetic energy alone. That translates to much safer handling aboard ship. It's most certainly not a WMD, a weapon designed to massacre whole populations. Neither are any of the beam weapons mentioned -- pretty much by definition: beam weapons can only be trained on a single target at a time. And probably not people; that would be a huge waste of energy.
Consider this from the article:
So what's this? You favor the weapons in the current arsenal, where it's extremely difficult to avoid collateral damage and huge losses of life? And you disparage new weapons that allows the Navy to achieve its objectives while avoiding these things as much as possible?So yes, you're a troll.
Re:Luckily this is the US (Score:5, Insightful)
The projectiles are neither biological nor chemical in nature. They are not made of radioactive materials. They are, in effect, big crowbars.
They will likely be more precise than current artillery shells and even any bomb short of one which is laser guided. In spite of being ballistic projectiles, they are relatively small and have very limited frontal drag, meaning they will tend to stay on course. This means they are less likely to cause collateral damage.
In other words, these things are weapons of war, and not weapons of completely laying waste to a country.
By the way, we've been doing research on stuff like this at ordinary universities all over the country, and the technology is not exactly new, it's just new that the power requirements can reasonably be met. UT Austin has had an incredibly powerful small-projectile (about the size of your hand, but still pretty nasty when fired at about mach 4) railgun for quite some time now, and it can't be the only one.