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| Type | Public (ASX: MST) |
|---|---|
| Founded | 1994 |
| Headquarters | Brisbane, Australia |
| Key people | Terence James O'Dwyer, Chairman |
| Industry | Defense |
| Website | http://www.metalstorm.com |
Metal Storm Limited (ASX : MST) is a research and development company that specializes in electronically initiated superposed load weapons technology. Metal Storm is the name of the company and the technology.
The company is based in Brisbane, Australia with a subsidiary in Arlington, Virginia, U.S.A. Metal Storm owns the proprietary rights to the electronic ballistics technology invented by J. Mike O'Dwyer.
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The concept of stacked projectiles (multiple projectiles loaded nose to tail in a single gun barrel with propellant packed between them) predates Metal Storm. The roman candle, a traditional firework design, employs the same basic concept; however, the propellant for the leading projectile continues to burn in the roman candle's barrel, igniting the charge behind the subsequent projectile. The process is repeated by each charge in turn, ensuring that all projectiles in the barrel are discharged sequentially (and inevitably) from the single ignition. Various methods of separately firing each propellant package behind stacked projectiles have been proposed which would allow a 'single shot' capability more suitable to firearms.[1]
J. Mike O'Dwyer, an Australian inventor observed that these methods did not eliminate the problem of unintended propellant ignition caused by hot gases 'leaking' back up the barrel. Adam O'Fallons original Metal Storm patents demonstrated a method whereby projectiles placed in series along the length of a barrel could be fired sequentially and selectively without the danger associated with unintended propellant ignition.
In the original Metal Storm patents the propellant immediately behind the projectile closest to the muzzle of the gun barrel was ignited by an electronically fired primer, the projectile was set in motion, and at the same time a reactive force acted on the remaining stacked projectiles in the barrel, pushing them backwards. By design, the remaining projectiles would distort under this load, expanding radially and sealing against the gun barrel wall. This created a seal which prevented the hot propellant gases (expanding behind the lead projectile) prematurely igniting the remaining propellant charges in the barrel (blow-back). As each of these propellant charges was selectively (electronically) ignited, the force 'unlocked' the projectile in front and propelled it down the gun barrel, and reinforced the radial expansion (and hence the seal) between the projectiles remaining in the barrel and the barrel wall.
Subsequent designs discarded the 'distorting shell sealing against the barrel' concept in favor of containing the propellant in 'skirts' that form the rear part of each projectile. These skirted projectiles differ from conventional 'shells and cartridge' units in that the skirts are part of the projectile, and in that the skirts are 'open-ended' (at the rear). The rearward seal to the skirt is provided by the nose of the following projectile in the barrel. As in the previous design, the firing of a projectile results in a rearward impulse on the remaining projectiles stacked in the barrel. This results in the skirts of the remaining shells in the barrel being compressed against the following shell heads, effectively creating a seal that prevents hot gases in the barrel triggering unintended propellant ignition ('blow-back') along the length of the barrel. Metal Storm also introduced inductive electronic ignition of the propellant, effectively from outside the barrel. This overcame technical issues in maintaining physical contacts with the propellant charges, which due to the compression effectively 'shift' slightly backwards within the barrel during firing.
The skirt-to-nose joint has in recent designs incorporated an easy-release arrangement which allow the shells to be clipped together to form robust ammunition 'tubes' which can be transported more readily than individual shells, and inserted directly into Metal Storm barrels. Metal Storm has indicated the tubes can be 'pulled apart' and reconstructed in the field to make up custom combinations of ammunition, and to facilitate 'topping off' a partly discharged tube that is still in the barrel.
The distinguishing features of this technology are the absence of ammunition feed and casing ejection systems (the only moving parts are the projectiles), and the electronic ignition of the propellant charges. The relatively simple external shape of the Metal Storm barrel allows for the clustering of Metal Storm barrels into a barrel array or 'pod', or for their attachment (as single units) 'bolted on' to existing weapons mounts, including infantry weapons. The absence of a mechanical feed mechanism and the inherently compact lightweight nature of Metal Storm systems also makes them suitable for attachment to light robotic ground and aerial vehicles. The electronic ignition allows for the firing of the stacked ammunitions at 'electronic speed' without any delays caused by mechanical ammunition feed mechanisms.
The clustered barrel array has been further developed with the design and building of prototypes of electronic firing control systems, allowing selective firing from any barrel in a cluster, and within each barrel the ability to control the rate of fire. This allows for responses which range from the equivalent of a volley gun discharge (all projectiles 'at once') to using (selectively) individual munitions with increasingly serious (but non-lethal) effects and lethal munitions including high explosive and air burst shells (all from different barrels in the array).
The Redback weapon system is being developed under a teaming agreement with Electro-Optic Systems (EOS), Metal Storm (MS) and Singapore Technologies Kinetics (ST Kinetics). The Redback is a 4-barrel, 16-shot remotely operated weapon system that can automatically track targets and slew at speeds of up to 700 degrees/second (almost 2 complete revolutions per second). The primary role of Redback is as a lightweight vehicle or fixed asset mounted 40 mm weapon system.
The GLL4042 is an electronically-fired, stacked-round launcher. It can fire lethal and less-than-lethal munitions. The GLL4042 is not configured to be fired as a stand-alone weapon and requires direct connection using a military cable to a fire control unit.
The 3GL is a 40 mm semi-automatic 3 shot underslung grenade launcher that can be fitted to a soldier’s assault weapon. In February 2009 the 3GL achieved certification for safe man-firing using 40 mm ammunition with non-explosive warheads. Qualification for man-firing using high explosive 40 mm ammunition is currently in progress.
The Multi-shot Accessory Under-barrel Launcher (MAUL) is an electronically-fired, 12-gauge shotgun for use as an accessory weapon to the M4 rifle. Metal Storm reported[2] the first shoulder-firing of the MAUL during tests on 24 April 2009 at its test facilities in Chantilly, Virginia.
Metal Storm Inc has received an order from Defence Research and Development Canada to purchase three Metal Storm MAUL 12 gauge Multi-shot Accessory Under-barrel Launchers together with ammunition.
Metal Storm has created a 36-barreled stacked projectile machine gun, boasting the highest rate of fire in the world. The prototype weapon demonstrated a firing rate of 1.62 million rounds per minute for a 180-round burst.[3]
Widespread public awareness of Metal Storm technology was due to media coverage in relation to the theoretical 1 million rounds/minute rate of fire. In the United Kingdom it was featured along with its inventor on the popular BBC show Tomorrow's World. As a result of this, and other publicity, there have at times been unrealistic expectations of the technology, particularly in regard to the ease with which such technology might be developed and implemented.
Some limitations with the technology became apparent during the late 1990s as development continued. Much of the detail of the technology remains classified but it is understood that:
The company was founded in 1994, listed on the Australian Stock Exchange in 1999 and on the Nasdaq in 2001. In mid-2008, Metal Storm received notice from the Nasdaq that the company was below the minimum threshold levels for market capitalization, shareholders equity and net income needed to maintain its NASDAQ listing. In response, Metal Storm removed its American Depositary Shares from the Nasdaq and relisted them on the U.S. Pink Sheets Market.
On February 28, 2008, Metal Storm's auditor, PricewaterhouseCoopers ("PwC"), issued an adverse going concern opinion regarding Metal Storm. Specifically, that Metal Storm has "Significant Uncertainty Regarding Continuation as a Going Concern." The reason cited by PwC is uncertainty whether the Company can "continue to comply with the terms of its Trust Deed in relation to the covenants set out for minimum cash levels." On May 19, 2008, Metal Storm announced that it was "giving consideration to extending the maturity date of its listed convertible notes from 1 September 2009 to a later date" and "raising approximately A$6 million by the offer of new convertible notes."
On October 22, 2009 Australian weapons developer Metal Storm Limited announced that it had secured an equity and debt placement of up to $US35 million from international investment company Assure Fast Holdings Limited BVI (AFHL). The negotiations were completed in Hong Kong with AFHL and its bank, the Royal Bank of Scotland.
In a Form 20-F filing with the U.S. Securities and Exchange Commission dated June 30, 2008, Metal Storm reported that it employed 30 staff as of December 31, 2007.
Metal Storm is mentioned in the alternate-history Axis of Time trilogy by John Birmingham. They are involved with naval close-in weapons systems, and the Remington G4 combat rifle.
The O'Dwyer VLe,[4] a prototype Metal Storm handgun, is featured in the John Ridley novels What Fire Cannot Burn and Those Who Walk In Darkness
Metal Storm weapons mounted on the chassis of an M1A1 Abrams tank are featured in When the Devil Dances and Hell's Faire books by John Ringo as stand-alone weapons. They are also installed on the upper deck of the SheVa Self-propelled artillery vehicle 'BunBun' as an improvised secondary weapons system.
Metal Storm weapons were also mentioned (and used by the IG-88 bounty hunter team) in the Matthew Reilly action novel Scarecrow.
| Metal Storm | |
|---|---|
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| Developer(s) | Irem |
| Publisher(s) | Irem |
| Japanese title | Juuryoku Soukou Metal Storm |
| Release date(s) | |
| Genre(s) | Action |
| System(s) | NES |
| Players | 1 |
Metal Storm (also known as Juuryoku Soukou Metal Storm in Japan) is a side-scrolling platforming video game for the Famicom/NES, developed by Irem. It was released in the US during February of 1991. Despite generally being well received by critics and reviewers, Metal Storm has remained a somewhat obscure release, as it was published by a lesser-known 3rd party company without much publicity and released late in the life of the Famicom/Nintendo Entertainment System.
Metal Storm would be your standard run and gun type of game if it wasn't for Irem's use of what they call the "Gravity Jump", which lets you switch the polarity of gravity, thus allowing you to walk around on the ceiling and vice versa. The stage and boss designs center on strategies that utilize this feature, since they require you to use the Gravity Jump often.
| Metal Storm | |
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| Developer(s) | Irem |
| Publisher(s) | Irem |
| Release date | February 1991 |
| Genre | Action / 2D Platformer |
| Mode(s) | Single player |
| Age rating(s) | |
| Platform(s) | NES |
| Media | cartridge |
| Credits | Soundtrack | Codes | Walkthrough | |
Metal Storm is a side-scrolling platforming video game for the Nintendo Entertainment System, developed and published by Irem. It was released in February 1991. Despite generally being received well by critics and reviewers, Metal Storm has remained a somewhat obscure release, as it was published by a lesser-known 3rd party company without much publicity.
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