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Mysterious 'Forcefield' Tested on US Tanks
An anonymous reader writes "Not too long ago General Dynamics announced a successful test of their new Trophy Active Defense System (ADS). The Trophy ADS generates something similar to a force field around one half of a vehicle as a direct reaction to incoming fire. From the article: 'The Threat Detection and Warning subsystem consists of several sensors, including flat-panel radars, placed at strategic locations around the protected vehicle, to provide full hemispherical coverage. Once an incoming threat is detected identified and verified, the Countermeasure Assembly is opened, the countermeasure device is positioned in the direction where it can effectively intercept the threat. Then, it is launched automatically into a ballistic trajectory to intercept the incoming threat at a relatively long distance.'"
Calling this a "force field" is a bit of a misnomer. It looks more like a point defense system for tanks and other armored vehicles. Very cool, but not as cool as a real force field.
As much as we might like to blame the summary, but the term occurs in the FA, too.
Ballistic - relating to or characteristic of the motion of objects moving under their own momentum and the force of gravity; "ballistic missile"
So....... if I keep my enemies at bay by throwing rocks at them, I am protected by a "force field"?
If I read that correctly, its not really a forcefield as we think of it. Its more like a bunch of sensors, that when they detect a threat, shoot something in the way of the threat so the decoy is hit instead of the tank. Its like chaff or any other decoy.
From TFA:
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~ |rip/\/\aster /\/\onkey
Its not realy similar at all to reactive armor... Its more like a miniature Phalanx system that uses a shotgun instead of a gattling gun. That still doesnt take away its cool factor though.
I love to slaughter the english language.
As you can see from the video, calling it a "forcefield" is nothing but an attempt to get free publicity. This thing is in reality a point defense system that uses radar to sense incoming projectiles and shoots out the equivelant of chaff to destroy the projectiles before it hits the vehicle.
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It's a sad day for Slashdot when something that could be done by a trained bat operating a tennis ball launcher is labeled as "mysterious" and vividly lauded. This is no more a forcefield than a fishing net is a cybernetic bio-containment unit. Another case of wishful PR thinking.
Now, if they had actually trained bats, then we're on to something.
Small potatoes make the steak look bigger.
Sorry, force fields are fields made of energy that can repel matter. Anyone watching one episode of Star Trek understands this.
Call it protective field or simply coutermeasure device, but don't bastardize the concept of force field to sensationalize this story.
You get all us Trekkie geeks excited over nothing.
I haven't thought of anything clever to put here, but then again most of you haven't either.
Translation: It's a machine gun. Probably 5.56mm NATO standard, as it's just big enough and the ammo is cheap.
Basically the same as a scaled down Phalanx.
Reactive armour has no electronic control, it's just a sheet of explosives sandwiched between two layers of steel held off of the vehicle hull. When a HEAT shell detonates on the surface, the explosive sheet also detonates, disrupting the jet.
This seems like an awful lot of computing and wasted material just to shoot down a projectile at long distance. Who is to say that the projectile would even hit its target? We've had ERA for a while... Let the projectile come to you. If defense contractors and the armed services had to spend their own money instead of yours and mine, we wouldn't be doing any of this crazy stuff. It's only a good product if it's inexpensive and does what it is supposed to.
"Bad times have a scientific value. These are occasions a good learner would not miss." ~ Ralph Waldo Emerson
Hate to remind you, but the majority of casualties in Iraq is to Iraqi citizens, largely due to the total absence of security and stability in their country. Casualties in tanks are few in Iraq.
Iran announces that it has successfully enriched uranium, and shortly afterward the U.S military announces that it has laser cannons and force-fields. Coincidence?
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Is it "half of the vehicle" or a "hemisphere of protection"? If it's a hemisphere, I don't expect that they run the protection throught the ground, and if so, that would give full coverable of the vehicle. If it's half, then it's not a hemisphere, because only a quarter of a sphere will protect half of it.
Maybe this is why people don't like hanging out with me.
You are checking your backups, aren't you?
That isn't a force field at all! It just shoots you!
The Russians were far ahead in this field. This "mysterious forcefield" is nothing more than the US version of the Russian Arena system fitted in T-90 tanks since 1995. There are even videos on the web showing some fire tests which are truly impressive. If you find them you can see anti-tank guided missiles (ATGM) get destroyed or thrown out of course by this special cannon matched to a radar system. When activated it creates a field of protection around the tank where anything approaching the tank at certain speeds of enough size gets an automatic response from the system. They also have an electro-optical jammer system called Shtora-1 which is far more interesting in my opinion than this active protection system.
1. gotta be expensive (we don't wanna look like cheap assholes) 2. gotta make it sound like it's out of a sci-fi movie Training donkeys to help soldiers with carrying provisions : REJECTED A million dollar noisy and entertaining robotized donkey, looks like those big quadruped machines on Hot in Episode VI - ACCEPTED Laser beams shooting out of airplanes, like on space ships - ACCEPTED Light mattery to replace bullet proof vests - REJECTED Robotized cyborg-like appendages, makes soldiers look exactly like Robocop - ACCEPTED Machine gun that shoots of RPG-s targeted at tanks - REJECTED Mysterious Force field repelling RPG-s - ACCEPTED
Warning Label on Tank:
Do not play frisbee, football, or baseball near the talk.
Thank you,
The Management
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No way. This tech is intended to destroy incoming long-range projectiles such as missiles and, maybe, shells.
In theory, it works against RPG fire, assuming the radar catches it fast enough, which is subject to discussion, since RPG 7 is typically fired from 100-200 m away. Regarding IEDs, it would probably be totally inefficient. IEDs cause damage pretty much like landmines do: blast, heat/fire (where their device is not effective), and shrapnel (too dispersed to be intercepted). Plus, the IEDs fire off at very close range, while this device is supposed to trigger when the incoming projectile is 20/30 metres away.
Plus, they're only planning to implement it on expensive, big-ass armoured vehicles such as M1s and Strykers: in other words, the ones that aren't really put at threat by RPG7's and IEDs in the first place. I don't see the Army deploying this multi-million-dollar tech on their Hummers anytime soon...
This is "just" some new kind of anti-missile technology, only miniaturized and applied to tanks. Calling this a "protective force field" reeks of astroturf and, worse, political propaganda. This is high-tech for high-tech wars between high-tech armies, not protection gear.
Assuming this kind of high-tech weapons systems helps the conduct of non-conventionnal warfare, low-intensity warfare and ground occupation in anyway it misleading, counter-productive, and ultimately, dangerous (not to mention tax-dollar-wasting):
1. It makes political leaders and citizens think they can send troops to war without putting them in harm's way (assuming they care about the soldiers' lives at all), while ignoring all warnings from experts (both in and out the Army) that no amount of tech will ever make asymetric warfare completely safe.
2. It facilitates entry into war by ensuring complete, total, casualty-less, blitz-style victory against the military opponent (such as during the first weeks of the Iraq war). This both allows to "sell the war" (politically speaking) more easily, and it makes political leaders and military planners believe they don't even need a post-war scenario (since, by their standards, they'll have won the war and will be able to retire in the following weeks).
3. And during actual occupation, all these gadgets are of absolutely no use whatsoever to protect the troops against guerillas/militias/terrorist cells and/or an angry populace.
Sure, tech can help, even in non-conventionnal warfare. But it will never replace diplomacy, non-conventionnal military skills, solid ground intelligence, negociations with the adversary (don't get me wrong, negociating doesn't mean you can't stab them in the back the next minute), and not pissing off all of the locals at once. All things which the US Army is arguably not very good at, but this is another debate entirely.
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The title drew me into this posting. This kind of bullshit needs to stop -- it really dilutes the credibility of Slashdot. I fully understand that TFA used the term force field, but obviously someone wrote out the term "mysterious force field" with the intent of deceiving people.
Seriously, I know, you are joking, but nobody seems to jokingly wear, say, Swastika on their clothing, yet the Hammer-and-Sickle remain all the rage :-(
Imagine a new line of German schnaps being promoted with those crossed symbolic fasces. It would -- understandibly -- cause an outrage. But new Russian vodkas continue to proudly display the murderous Red Star, and the above mentioned tools.
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