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Centrifugal weapon could deliver stealth firepower
New Scientist ^ | 5/11/05 | Will Knight

Posted on 05/11/2005 1:07:57 PM PDT by LibWhacker

A gun that spits out ball bearings after spinning them to extreme speeds is being developed by a US inventor. The novel design has already caught the imagination of some defence industry experts.

The weapon, called DREAD, was invented by Charles St George, a veteran of the US firearms industry who founded the company Leader Propulsion Systems to promote the idea. He claims a major US defence company has shown an interested in developing it further and has produced a promotional video showing a prototype in action, which can be seen here (Quicktime). He says a new prototype will be developed in August 2005.

The gun consists of a mounted circular chamber that spins the metal ball bearings to high speed. A release mechanism on one side spits the balls out one behind the other, a handful at a time.

St George says the projectiles travel at around 300 metres per second upon release from the weapon, about the same speed as a handgun round. He claims a fully developed DREAD gun would be quieter than a conventional gun, less prone to malfunction, and could contain more ammunition.

DREAD also releases its balls in extremely rapid succession, which allows it to unleash formidable firepower against a target. Promotional material for DREAD states: "Due to its extraordinary high rate of fire capability, it delivers its bullets 8.5 millimetres apart, thereby delivering more mass to the target than any other weapon."

Overwhelming and devastating

St George would not specify the range or accuracy of the most recent prototype or explain precisely how the system works, because he says this information could be commercially sensitive.

But a patent issued to him in February 2003 has been found by Marc Abrahams, editor of science humour magazine Annals of Improbable Research. It refers to a "Weapon for Centrifugal Propulsion of Projectiles". In this design, balls are stored inside a series of narrow chambers that radiate from the centre of a circular chamber and which are rotated with the chamber at high speed.

A mechanism beneath each narrow chamber automatically manoeuvres a single ball into a smaller compartment at near its edge. When the trigger is pulled, these balls are released into a guide rail and shoot from the disc rapidly, from a hole at its edge.

"The system seams absolutely feasible," says David Crane, editor of the website DefenseReview.com. The weapon could strike targets with “overwhelming and devastating firepower - we're talking about total target saturation."

Terry Gander, who edits the defence industry journal Jane's Infantry Weapons, adds that similar concepts have been developed in the past. But Gander notes that these have had low projectile velocity and have been proposed as crowd control weapons. "It all depends on the sort of power source you have," he told New Scientist. "I'd be very interested to know what its range is."

But Abrahams finds the idea outlandish. "Anything that seems so far beyond anything else is worth a moment's thought before you completely gulp it down," he told New Scientist. "It is way out on the side of the scale that deals with high levels of imagination.


TOPICS: News/Current Events; Technical
KEYWORDS: ball; balls; bang; banglist; bearings; brassballs; centrifugal; firepower; massdriver; miltech; spaceballs; spinning; stealth; weapon
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To: Southack

..and thus why I have a business degree and not a physics degree.. thanks for the clarification.


81 posted on 05/11/2005 1:56:12 PM PDT by mnehring (http://www.mlearningworld.com)
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To: wideminded
"Snap your fingers, turn on a light. That was my idea..."
82 posted on 05/11/2005 1:56:53 PM PDT by theDentist (The Dems are putting all their eggs in one basket-case: Howard "Belltower" Dean.)
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To: LibWhacker

Looks like a Titleist!

83 posted on 05/11/2005 1:57:03 PM PDT by Doomonyou (Molon Labe! FMCDH!)
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To: avg_freeper
The acceleration is very nearly circular and entirely internal the 'firing' is just releasing a mass. The 'recoil' would be simple conservation of momentum. That deals with velocity and not acceleration. The recoil would be very sharp since it is nearly a instantaneous release but it would also be very small.
84 posted on 05/11/2005 1:57:20 PM PDT by TalonDJ
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To: Congressman Billybob
Round bullets have an accuracy problem. But ball bearings with dimples on them could be more accurate at long distances. Witness the evolution of the golf ball.

This reminds me of a bunch of Revolutionary War rifle shot my grandpa had.. they started adding in large dimples (4-5) like large versions of what is on a golf ball. He said it was for accuracy.
85 posted on 05/11/2005 1:58:23 PM PDT by mnehring (http://www.mlearningworld.com)
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To: Born to Conserve
A Jai alai "high lie" ball travels faster than the scoop used to throw it.

Are you sure about that? Seems to violate the laws of physics as they were taught to me, though admittedly we never looked at the physics of Jai alai! Thanks very much for that, though, BC . . . It'll be interesting to see what others say about it.

86 posted on 05/11/2005 1:59:27 PM PDT by LibWhacker
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To: LibWhacker
We could reduce the diameter to six inches and still get you a muzzle velocity of 1,000 ft/sec if you were willing to carry around a rotating steel or titanium disk that was spinning at 40,000 rpm. You'd have to carry around a motor, too. :-)

Why are we assuming this is a motor driven or as others suggested a flywheel? Couldn't this be done through a controlled magnetic field, thus no need for moving parts?
87 posted on 05/11/2005 2:00:31 PM PDT by mnehring (http://www.mlearningworld.com)
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To: dandelion
I'd bet I'd be the only mom on my block to have a DREAD!

Would a “safety” lock be a dread lock?
88 posted on 05/11/2005 2:01:13 PM PDT by R. Scott (Humanity i love you because when you're hard up you pawn your Intelligence to buy a drink.)
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To: LibWhacker
"We could reduce the diameter to six inches and still get you a muzzle velocity of 1,000 ft/sec if you were willing to carry around a rotating steel or titanium disk that was spinning at 40,000 rpm. You'd have to carry around a motor, too. :-)"

Every home handyman with a $20 Dremmel has a centrifugal weapon capable of 40,000 rpm's and muzzle velocities of 1000 feet per second.

They'd just need small, dense projectiles and the right tube plumbing.

There was a whole series of sci-fi books a couple of decades ago about using steam engines to power wheels that would release projectiles...giving machine guns to 18th century armies.

89 posted on 05/11/2005 2:01:19 PM PDT by Southack (Media Bias means that Castro won't be punished for Cuban war crimes against Black Angolans in Africa)
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To: PreviouslyA-Lurker

Lol, a screwdriver would definitely fit in your purse, but a nice little .40 caliber or .45 caliber pistol would be better!


90 posted on 05/11/2005 2:01:49 PM PDT by LibWhacker
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To: LibWhacker
It does some counter intuitive at first but the math is sound. The reason is the radial acceleration component. I can't rattle off the number off the top of my head. At home I have a copy of the proceedings of the space conference I first saw this at and in there are the complete mathematics behind this.
91 posted on 05/11/2005 2:02:36 PM PDT by TalonDJ
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To: Junior
Except now you have to deal with Newton's Third Law: as the weapon spun in one direction, there would be a tendency for the platform to begin spinning in the opposite direction -- not rapidly, but enough to make Zero-G combat a rather hairy proposition.

You simply make a second wheel that spins in the opposite direction, similar to some vertical take off propellar planes that were around in the 1960s or some two prop helicopters. This would keep the space station from spinning.

92 posted on 05/11/2005 2:02:39 PM PDT by calex59
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To: LibWhacker
I can recall reading at least two science fiction stories involving such a device. Can't recall titles now, but maybe the existence of the stories would invalidate his patent.
93 posted on 05/11/2005 2:02:48 PM PDT by JoeFromSidney (W)
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Comment #94 Removed by Moderator

To: mnehrling

You mean like a railgun? It's true; railguns have awesome potential. Especially a nice little portable model I could slip in my pocket. But I think this particular invention involves centripetal forces; i.e., a spinning disk of some kind.


95 posted on 05/11/2005 2:07:10 PM PDT by LibWhacker
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Comment #96 Removed by Moderator

To: Jerry K.

Would hate to see any meaty target after THAT does the job


97 posted on 05/11/2005 2:08:08 PM PDT by commonasdirt
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To: bobbdobbs
The recoil would be absorbed as a wobble in the rotation. It is a transference of linear motion into rotational motion. So the energy does exist and does go some place it does not do it in a more traditional firearm 'recoil'.
98 posted on 05/11/2005 2:08:30 PM PDT by TalonDJ
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To: marblehead17

Probably the Fetzer valve.


99 posted on 05/11/2005 2:08:37 PM PDT by Doctor Stochastic (Vegetabilisch = chaotisch is der Charakter der Modernen. - Friedrich Schlegel)
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To: MeanWestTexan

I suppose these could be scored like a golf ball. Of course, the Magus effect still affects accuracy.


100 posted on 05/11/2005 2:10:44 PM PDT by Doctor Stochastic (Vegetabilisch = chaotisch is der Charakter der Modernen. - Friedrich Schlegel)
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