US Navy Demos 33 MJoule Railgun

[Ulysses]

we should test this new weapon on Iran


lets see if Iran can give us a Review

 

[Hack-Hook]

we should test this new weapon on Iran


lets see if Iran can give us a Review

what about a deal , we will give you a review on this system that right now fire 5 bullet
per week then you must give us your review on a volley of Persian Gulf missiles .

 

[Chogy]

we should test this new weapon on Iran


lets see if Iran can give us a Review

You don't help things with comments like this. Let's try to rise above the stereotyped "We're gonna kick your a$$" image of Americans...

 

[gambit]

the bomb endure far less acceleration when released than the bullet that come out of a rail gun
all the device you put inside that bullet will be rendered useless when you accelerate it from 0 to 5 mach in milliseconds

Are you that much behind the times? The XM-25 'smart' grenade have timing mechanism to detonate at programmed distances. And now we have 'smart' bullets that have laser sensor guidance. Just because Iran cannot do <something> that does not mean we cannot.

 

[IronsightSniper]

Are you that much behind the times? The XM-25 'smart' grenade have timing mechanism to detonate at programmed distances. And now we have 'smart' bullets that have laser sensor guidance. Just because Iran cannot do <something> that does not mean we cannot.

How do you think we guide terminal-phase ICBMs with such pin-point accuracy? lol.

Guidance for hypervelocity projectiles is possible, just costs a lot.

 

[Hack-Hook]

Are you that much behind the times? The XM-25 'smart' grenade have timing mechanism to detonate at programmed distances. And now we have 'smart' bullets that have laser sensor guidance. Just because Iran cannot do <something> that does not mean we cannot.

if you say laser guided shell and mortars for your information Iran also produce them
but for your information those weapons endure far less stress than this one because
the acceleration for them is far less a ICBM go over 12 time the speed of the sound but
the acceleration is far less than this system because they do that in far more time

by the way if by XM-25 you mean this one
XM25 CDTE - Wikipedia, the free encyclopedia
then it's a subsonic grenade something like 210m/s not a hypersonic bullet like
what we are talking about and also a normal bullet endure far less acceleration
than this gun and also don\t forget about the magnetic field inside the Gun barrel

well if you are claiming that you can defy the Newton laws of motion specially the
third one then that's something else.

 

[Hack-Hook]

How do you think we guide terminal-phase ICBMs with such pin-point accuracy? lol.

Guidance for hypervelocity projectiles is possible, just costs a lot.

well size those not matter but weight does
here also velocity does not matter but acceleration does

this can explain it for you

First law: The velocity of a body remains constant unless the body is acted upon by an external force.[3][4][5]
Second law: The acceleration a of a body is parallel and directly proportional to the net force F and inversely proportional to the mass m, i.e., F = ma.
Third law: The mutual forces of action and reaction between two bodies are equal, opposite and collinear.

 

[rubyjackass]

It's an interesting technology, but I have some concerns... how is it superior to a missile? In fact, it seems to be inferior to one in many ways.

If it is unguided, that means its ability to hit a moving target is going to be greatly limited. If the means of a kill is kinetic energy only, that is going to limit the damage.

One thing it has going for it is that the cost per shot would be pretty low. You have a projectile, and electricity. A nuclear reactor can provide all the cheap electricity it needs.

I dont think it is meant for hitting moving targets. It is meant for bombardment of cities from gunships like they did in the Civil war days. This is not possible today because ships have to get close to the land, making them vulnerable to anti-ship missiles, airraids and even mortars.

 

[Alpery]

if you say laser guided shell and mortars for your information Iran also produce them
but for your information those weapons endure far less stress than this one because
the acceleration for them is far less a ICBM go over 12 time the speed of the sound but
the acceleration is far less than this system because they do that in far more time

by the way if by XM-25 you mean this one
XM25 CDTE - Wikipedia, the free encyclopedia
then it's a subsonic grenade something like 210m/s not a hypersonic bullet like
what we are talking about and also a normal bullet endure far less acceleration
than this gun and also don\t forget about the magnetic field inside the Gun barrel

well if you are claiming that you can defy the Newton laws of motion specially the
third one then that's something else.

XM-25 example ...given for delay mechanism
for mach2.1 ..check this out
Sandia Labs Develops Laser-Guided Bullet &#8212; Amazing Technology « Daily Bulletin

guidance is imposible... (over mach5 ,for disance 2km within 20cm)

 

[TruthSeeker]

Story update. See video at this link: Navy Railgun tests leading to superweapon by 2020 - Technology & science - Innovation - msnbc.com

Navy railgun tests leading to ship superweapon by 2020


By Jeremy Hsu, InnovationNewsDaily Senior Writer, updated 2/28/2012 3:37:54 PM ET
Print Font:
The first weapon-scale prototype of a futuristic Navy railgun began undergoing firing tests last week, the next big step toward putting the electromagnetic superweapon on U.S. warships by 2020. The Navy envisions using railguns to destroy enemy ships, defend against enemy missiles, or bombard land targets in support of Marines hitting the beaches.

Newly released video shows the prototype railgun using an electric-powered launcher rather than gunpowder to fire a huge hypersonic bullet in a cloud of flame and smoke. The Office of Naval Research hopes its new test phase &#8212; scheduled to last until 2017 &#8212; leads to a Navy weapon capable of hurling 40-pound projectiles at speeds of 4,500 mph to 5,600 mph over 50 to 100 miles (7,240 to 9,010 kilometers per hour over 80 to 161 kilometers).

The full-size prototype, made by BAE Systems, "looks like a real gun," said Roger Ellis, program manager for the railgun at the Office of Naval Research, during a media teleconference today (Feb. 28). Previous tests involved clunky laboratory prototypes that would never see action aboard a Navy warship.

U.S. Navy commanders ultimately want a weapon capable of firing up to 10 guided projectiles per minute at targets up to 100 miles away. Navy warships currently have 5-inch guns capable of firing at distances of 13 miles.

"There is potential to replace the 5-inch gun, but it would do far more," Ellis said in response to an InnovationNewsDaily question. The railgun could hit the same distant targets that Navy missiles strike today, he said.

A second railgun prototype, built by General Atomics, is set to arrive for testing in April, Ellis said. Having railguns built by different companies gives the Navy a choice if it ultimately decides to deploy the superweapon.

Both General Atomics and BAE Systems committed millions of their own dollars during the first $240 million test phase, which recently ended. The newly begun Phase II is funded at about the same amount. It is testing prototypes capable of harnessing 32 megajoules of energy. Just one megajoule would be enough to throw a 1-ton car 100 mph.

During the five years of Phase II, the Navy plans to test cooling systems and a battery that could store the energy required by the railgun. It has contracted with General Atomics, BAE Systems and Raytheon for designs for a pulsed power system.

Because of its hypersonic speed produced by the railgun, a projectile shaped like a bullet could deliver devastating damage even without exploding. It could include electronic guidance systems such as GPS that would be protected against the immense heat of the giant bullet's hypersonic passage.

"The rounds we are firing currently are non-aerodynamic slugs," Ellis said of the testing. "They match the interior ballistics of what the launcher is expected to see but are intended to slow down quickly."

If all goes well, the Navy could end up equipping its ships with railguns of all different sizes. Companies such as General Atomics have already built smaller railguns for their own testing purposes.

"We believe this is game-changing technology, and in our case we've invested internal funds of more than $20 million for a subscale prototype to move the technology forward," said Tom Hurn, director of railgun programs at San Diego-based General Atomics.

Navy Railgun tests leading to superweapon by 2020 - Technology & science - Innovation - msnbc.com

 

[AZADPAKISTAN2009]

you should experiment with horse cart tanks next as oil will be finished

 

[anon45]

here's a video of the thing in action

comparatively, here is a testfire from 2010

They've come a long way


to note, that explosion you see is superheated air

 

[anon45]

On another note, I recall a post a bit back stating that funding was cut by a sub committee.

I am glad to announce that is is not happening, in fact funding is being more than doubled in order to support multiple prototypes and further develop the total system, including rate of fire.

With regards to the FEL, it is not looking as good because the budget it is under got halved, though it isn't dead yet.

I've read that they are cutting FEL funding in order to further fund solid-state lasers, but not from an authoritative source.

 

[ashokdeiva]

I dont think this is going to be bad tech in shooting down moving targets.
With the high speed, it does not require a guidance but a effective and presise targeting system will do the job.
Though it has one con, which is you can not abort a projectile once its in air, there will be no kill switch.