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US Navy Tests Supersonic Heavy Gun Firing Magnetically-Propelled Shells @ Mach 7
Reaganite Republican ^ | March 2, 2012 | Reaganite Republican

Posted on 03/02/2012 5:28:46 AM PST by Reaganite Republican


'a game-changer'

British multinational BAE Systems has developed a functioning prototype of a new artillery piece for the US Navy's testing purposes, and what it does is propel a specially-designed shell to high supersonic velocities (cca 5600 mph) via powerful magnetic rails. At Mach 7, the projectile arrives almost three times as fast as the Navy's current big guns can deliver one, and at an astonishing range of 50-100 nautical miles (!) The new technology is now undergoing testing in Virginia.

Considering that today's naval artillery can reach only about
15 mi -and that long-range cruise missiles poke-along at a leisurely 550mph- it's easy to see how the daunting new weapon is already being called 'a game-changer'. Other uses quickly come to mind, such as the land, air, of sea based missile-defense systems for which it seems manifestly suited: paired to real-time drone/satellite intelligence and laser-guidance, there's not much a handful of these couldn't stop.

Some experts feel the new gun wouldn't even need to employ explosive shells, as a 40' chunk of metal arriving at over five thousand miles per hour should obliterate pretty much anything that happens to be sitting on Point B:


The USN has already spent seven years and $200M+ on development, with further funding still at the whim of the current US administration, be it a new Republican WH or -heaven forbid- another 4 years of steep decline under the Obammunists. 

A second variation on the theme is about to be delivered to the Navy by competing contractor General Atomics. , and while the (first) BAE gun seems to be performing well as a weapon, residual engineering challenges mostly concern building practical durability into such a mind-bogglingly powerful device... a task that is likely to take a few more years. Various cooling systems are being experimented with at this point in the development cycle, the goal being a capability of 10 rounds/min without melting the hyper-stressed barrel... at a range of up to 
200 nautical miles (!)

This of course comes at a perfect time for the US, as China seems determined to build a blue-water navy to challenge American naval supremacy, missile proliferation continues to run rampant, and the Iranian Navy -as always- could use a sinkin.

Yet hard to believe Obama hasn't tried to cancel this thing yet-
so noisy, unpleasant, polluting, and just mean... who needs that

Video/graphics/more at Reaganite Republican
_______________________________________________


British Forces News   The Telegraph   LiveLeak    Fellowship of the Minds


TOPICS: History; Military/Veterans; Politics; Science
KEYWORDS: artillery; navy; supergun; supersonic
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1 posted on 03/02/2012 5:28:54 AM PST by Reaganite Republican
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To: ken5050

Personal *ping*


2 posted on 03/02/2012 5:30:36 AM PST by Reaganite Republican
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To: Reaganite Republican
Wow! How many Gs do you suppose that shell endures to reach that kind of velocity in that short of distance? It must create one hell of a kick too!

Mike

3 posted on 03/02/2012 5:33:36 AM PST by MichaelP (The ultimate result of shielding men from the effects of folly is to fill the world with fools ~HS)
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To: Reaganite Republican
Wow! How many Gs do you suppose that shell endures to reach that kind of velocity in that short of distance? It must create one hell of a kick too!

Mike

4 posted on 03/02/2012 5:34:40 AM PST by MichaelP (The ultimate result of shielding men from the effects of folly is to fill the world with fools ~HS)
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To: Reaganite Republican

They showed this last night on Weaponology. I couldn’t believe the amount of capacitors this thing needs.

Wonder how this would fare against a target like...hmmm... an Iranian nuclear facility.


5 posted on 03/02/2012 5:35:42 AM PST by EQAndyBuzz (Most Conservative in the Primary, the Republican Nominee in the General.)
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Comment #6 Removed by Moderator

To: MichaelP

How do you “aim” at something that is 200 nautical miles away?


7 posted on 03/02/2012 5:38:44 AM PST by reg45 (Barack 0bama: Implementing class warfare by having no class!)
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To: Reaganite Republican

I am not a physics expert as you will see from this question. How far is the horizon? If this thing is firing that fast can you actually lob a shell or would the trajectory cause it to over shoot?


8 posted on 03/02/2012 5:41:07 AM PST by Walkingfeather
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To: reg45

“How do you “aim” at something that is 200 nautical miles away?”

Lasers- nothing this expensive flies ‘dumb’ anymore!


9 posted on 03/02/2012 5:41:07 AM PST by Reaganite Republican
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To: MichaelP

I’d guess this system had less recoil than a conventional one. But I’d hate to be anywhere near it if flooding occurs.


10 posted on 03/02/2012 5:42:07 AM PST by skeeter
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To: Reaganite Republican

Will it take out Fordow in one shot?


11 posted on 03/02/2012 5:44:35 AM PST by DonkeyBonker
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To: Reaganite Republican

It’s like a man made meteor strike. It doesn’t even need an explosive charge. Kinetic energy will do the work.


12 posted on 03/02/2012 5:47:36 AM PST by cuban leaf (Were doomed! Details at eleven.)
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To: Reaganite Republican

200 nautical miles, wow!

To choose a nautical trouble spot close to my heart, it’s 250 nautical miles from the Falklands to the coast of Argentina. That’s impressive range.

Imagine you started coming under satellite-observed fire at *200 nautical miles* - with a new shell incoming every 6 seconds (!). That would be a bad, bad day.


13 posted on 03/02/2012 5:49:23 AM PST by agere_contra ("Debt is the foundation of destruction" : Sarah Palin.)
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To: Reaganite Republican

The launcher (gun) is expensive but the projectiles are just dumb hunks of metal.


14 posted on 03/02/2012 5:49:37 AM PST by reg45 (Barack 0bama: Implementing class warfare by having no class!)
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To: Reaganite Republican

Given today’s loose lipped administration, I wonder if the CHinese already have theirs up and running.


15 posted on 03/02/2012 5:49:49 AM PST by King Moonracer (Bad lighting and cheap fabric, that's how you sell clothing.....)
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To: MichaelP

I am probably wrong, but I didn’t think rail guns had any recoil. The video simulations I saw showed the projectile gathering speed along the rail until it reached the end.


16 posted on 03/02/2012 5:50:46 AM PST by Drawsing (The fool shows his annoyance at once. The prudent man overlooks an insult. (Proverbs 12:16))
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To: reg45
At 200 miles, you would need a guided artillery shell like Excalibur. The trick will be making electronics and mechanisms able to survive the acceleration.

video of railgun test

17 posted on 03/02/2012 5:51:12 AM PST by PapaBear3625 (In a time of universal deceit, telling the truth is a revolutionary act. - George Orwell)
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To: reg45
How do you “aim” at something that is 200 nautical miles away?

Smart projectiles. BTW...I think he really meant 40 lb projectiles, not 40 foot projectiles.

18 posted on 03/02/2012 5:51:37 AM PST by 6ppc (It's torch and pitchfork time)
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To: Reaganite Republican

5600 mph x 100 mile range = approximately a one minute flight time.

Hard to hit a moving target with a one minute lead time.


19 posted on 03/02/2012 5:51:57 AM PST by Yo-Yo (Is the /sarc tag really necessary?)
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To: Reaganite Republican

Wonder what the power requirements are for that thing. Would it only be useable on something with a nuke power plant?


20 posted on 03/02/2012 5:53:41 AM PST by saganite (What happens to taglines? Is there a termination date?)
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To: Drawsing
I am probably wrong, but I didn’t think rail guns had any recoil.

Oh yes they do. You can't repeal Newton's Third Law.

21 posted on 03/02/2012 5:55:28 AM PST by Yo-Yo (Is the /sarc tag really necessary?)
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To: agere_contra
Imagine you started coming under satellite-observed fire at *200 nautical miles* - with a new shell incoming every 6 seconds (!). That would be a bad, bad day.

I did as you said and imagined this and you just made my day!! :D
22 posted on 03/02/2012 5:57:29 AM PST by Eagle of Liberty (We the People are coming!!)
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To: Walkingfeather
Even the crude computers used on board ships in WWII corrected for the spin of the earth.

DKM Scharnhorst hit HMS Glorious at slightly over 15 miles in 1940 (the horizon is about 14 miles). The shell took about 26 seconds to arrive, Glorious would have traveled around a half mile during that time.

Amazing accomplishment for the time, IMO.

23 posted on 03/02/2012 5:57:36 AM PST by skeeter
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To: MichaelP

Should be able to calculate it. We know the muzzle velocity and can make an estimate as to the barrel length.


24 posted on 03/02/2012 5:57:58 AM PST by Tallguy (It's all 'Fun and Games' until somebody loses an eye!)
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To: saganite
Wonder what the power requirements are for that thing. Would it only be useable on something with a nuke power plant?

Well, the 64MJ, 200 nm range gun concept has already pretty much been abandoned.

For 32MJ you don't need a nuke but you do need a ship with an electric/hybrid power system that can easily shift large amounts of power between propulsion, the gun, radars, etc.

25 posted on 03/02/2012 6:00:38 AM PST by Strategerist
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To: King Moonracer

“Given today’s loose lipped administration, I wonder if the CHinese already have theirs up and running.”

That was also my first thought: how quickly will the Obummer administration be able to transfer the technology to the ChiComs?


26 posted on 03/02/2012 6:01:37 AM PST by SharpRightTurn ( White, black, and red all over--America's affirmative action, metrosexual president.)
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To: Eagle of Liberty

see:

Rods from God
Space-launched darts that strike like meteors

Popular Science June, 2004:

http://www.popsci.com/scitech/article/2004-06/rods-god


27 posted on 03/02/2012 6:03:03 AM PST by theBuckwheat
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To: Yo-Yo

I wouldn’t eve want to try to repeal Newtons 3rd law.


28 posted on 03/02/2012 6:03:10 AM PST by The_Media_never_lie
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To: Tallguy

It will end up at 20,000-45,000 g


29 posted on 03/02/2012 6:03:40 AM PST by Strategerist
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To: Yo-Yo

I guess you could fire a stream of semi-guideable projectiles 6 seconds apart: all the shells would need is the ability to get some kind of optic on the target, track the shell in front and to push out/pull in small control surfaces.

Then you could program shots #2, #3, etc to pick up deflection data from the previous shots. That would work out as a 6 second lead time with a ‘learning’ bullet stream fired from 200 miles away. Ouch!


30 posted on 03/02/2012 6:04:51 AM PST by agere_contra ("Debt is the foundation of destruction" : Sarah Palin.)
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To: Reaganite Republican

Well, among other things, your fire control has to take in to consideration the rotation of the Earth (read about the Paris Gun, aka “Big Bertha”).
After that GPS or terminal guidance systems help, too.


31 posted on 03/02/2012 6:05:53 AM PST by Little Ray (FOR the best Conservative in the Primary; AGAINST Obama in the General.)
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To: Reaganite Republican

One other consideration. If you’re using rail guns, you aren’t having to carry around explosive shells, or a powder magazine.


32 posted on 03/02/2012 6:07:16 AM PST by tacticalogic ("Oh, bother!" said Pooh, as he chambered his last round.)
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To: The_Media_never_lie
Newtons 3rd law is a racist hang-over of imperial white oppression. Why shouldn't people be allowed to have unequal reactions, you, you momentophobe?
33 posted on 03/02/2012 6:09:26 AM PST by agere_contra ("Debt is the foundation of destruction" : Sarah Palin.)
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To: Reaganite Republican

Ohhhh...kind of like when I set up my slot car track in the basement and aimed it at the stairway door and fired a Mustang into Dad because I thought my friend Jimmy was coming downstairs. Hit Dad below the belt. I managed to jump over Dad and escape up the stairs and outside before Dad recovered, but the slot car set went into the garbage. Maybe the Navy could use Chevy Volts as ammunition. They would have the additional benefit of being on fire as they came zipping in. Flaming Chevy Volts screaming into your ships at mach 7.....the horror.....the horror.


34 posted on 03/02/2012 6:11:56 AM PST by blueunicorn6 ("A crack shot and a good dancer")
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To: Reaganite Republican

The retired battleship guns could reach more than 23 miles with an 1800 pound projectile.


35 posted on 03/02/2012 6:14:45 AM PST by GeronL (The Right to Life came before the Right to Pursue Happiness)
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To: blueunicorn6

LOL. Plus selling the pay-per-view rights to the spectacle of the Volt-bombardment of (say) Mecca would earn enough to pay for eight more navies.


36 posted on 03/02/2012 6:18:29 AM PST by agere_contra ("Debt is the foundation of destruction" : Sarah Palin.)
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To: theBuckwheat

Wow, I was just thinking that this gun in orbit would be the cat’s a$$.


37 posted on 03/02/2012 6:20:47 AM PST by Vinnie
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To: blueunicorn6

Oh man! I’m laughing my -ss off and coffee is going everywhere!


38 posted on 03/02/2012 6:26:32 AM PST by Tallguy (It's all 'Fun and Games' until somebody loses an eye!)
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To: Walkingfeather
If this thing is firing that fast can you actually lob a shell or would the trajectory cause it to over shoot?

Would be one hell of a lob, but the competition definitely would not see it coming! Remember, the trajectory could even be into space as in an ICBM.
39 posted on 03/02/2012 6:31:05 AM PST by Eagle of Liberty (We the People are coming!!)
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To: skeeter
Even the crude computers used on board ships in WWII corrected for the spin of the earth.

Heck, during WWI, the guys aiming the Paris Gun had to figure in the Earth's rotation as well. They hit Paris from 75 miles away.

40 posted on 03/02/2012 6:35:28 AM PST by Calvin Locke
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To: theBuckwheat

I think we need to take it up a notch from “Rods from God” to “Relativistic Kill Vehicle”

From the wiki:

“ExampleA 1 kg mass traveling at 99% of the speed of light would have a kinetic energy of 5.47×1017 joules. In explosive terms, it would be equal to 132 megatons of TNT or approximately 32 megatons more than the theoretical max yield of the tsar bomba, the most powerful nuclear weapon ever detonated. 1 kg of mass-energy is 8.99×1016 joules or about 21.5 megatons of TNT.”

http://en.wikipedia.org/wiki/Relativistic_kill_vehicle


41 posted on 03/02/2012 6:37:10 AM PST by ruiner
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To: Reaganite Republican

Imagine if all the money wasted on those solar scams had been applied to this program.

Obamoa wants to cripple our military from being able to spend in the future. Ayers, Soros, Obamao are enemies of our country.


42 posted on 03/02/2012 6:37:39 AM PST by FreeAtlanta (Liberty and Justice for ALL)
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To: Drawsing

You have to have recoil. The whole, equal and opposite reaction law.


43 posted on 03/02/2012 6:41:05 AM PST by FreeAtlanta (Liberty and Justice for ALL)
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To: Reaganite Republican

1. the senate armed services committee voted to kill this and a similar program several months ago. i’m not sure of the status or eventual impact of this decision.

2. this testing done here:
http://www.navsea.navy.mil/nswc/dahlgren/NEWS/railgun_2012/railgun_2012.aspx


44 posted on 03/02/2012 6:43:10 AM PST by mbarker12474 (If thine enemy offend thee, give his childe a drum.)
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To: Eagle of Liberty

Could you imagine a version that would splinter into hundreds of thousands of shards at about a half mile above a group of ships?


45 posted on 03/02/2012 6:43:31 AM PST by FreeAtlanta (Liberty and Justice for ALL)
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To: cuban leaf
At mach 7 the projectile will have 2,837 joules of kinetic energy per gram of mass. TNT only has 4182 joules of chemical energy per gram of mass. Since it isn't made of pure explosives, it probably has more kinetic energy than explosive energy.

For the non-physisist, there are 3.6 million joules of energy in 1 kilowatt-hour of electricity.

46 posted on 03/02/2012 6:45:49 AM PST by KarlInOhio (You only have three billion heartbeats in a lifetime.How many does the government claim as its own?)
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To: MichaelP

Assume a ‘barrel’ 10 meters long, an exit velocity of 2400 meters per second (just over Mach 7 at sea level), and a constant acceleration while in the ‘barrel.’

My cocktail napkin says that it experiences 28,800 G’s during the 1/120 second it is in the ‘barrel’.


47 posted on 03/02/2012 6:47:28 AM PST by Erasmus (BHO: New supreme leader of the rollin' homey empire.)
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To: Calvin Locke
Heck, during WWI, the guys aiming the Paris Gun had to figure in the Earth's rotation as well. They hit Paris from 75 miles away.

Impressive feat, but to be fair Paris wasn't moving...

48 posted on 03/02/2012 6:52:04 AM PST by Yo-Yo (Is the /sarc tag really necessary?)
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To: Drawsing
Remember Newton: For every action there is an equal and opposite reaction.... You wouldn't want to shoot that thing on a frigate!

Mike

49 posted on 03/02/2012 6:56:44 AM PST by MichaelP (The ultimate result of shielding men from the effects of folly is to fill the world with fools ~HS)
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To: ruiner
I think we need to take it up a notch from “Rods from God” to “Relativistic Kill Vehicle”

Great idea. Any idea how much energy you'd have to put into the system to accelerate a 1 kg mass up to .99 C?

Hint: Probably just a tad more than you expect to get back out of it... ;)

50 posted on 03/02/2012 6:58:20 AM PST by Yo-Yo (Is the /sarc tag really necessary?)
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