Although the technology used to develop the Marauder was theoretically laying the groundwork for more advanced energy production, namely some kind of fusion reactor, powering the weapon proved costly. Worldbuilding Stack Exchange is a question and answer site for writers/artists using science, geography and culture to construct imaginary worlds and settings. one report published just over a decade after, Marauder was the US militarys first plasma railgun and it might have worked. It seems like a really cool concept. @KareemElashmawy The vast bulk of what I said can be found in the wiki article I linked at the very start of the post. | About Us Description Evading railgun fire The power requirement appears to be immense. https://en.m.wikipedia.org/wiki/MARAUDER Essentially its a still classified US military project aiming to develop a railgun capable of firing 0.5-2.0 mg toroids of plasma at up to 3% light speed. The rest can be found here: @JDugosz Thanks for calling that outthat was edited in by someone else, I fixed it. Basically, the Marauder was everything an army could possibly hope for in the area of field artillery: an ultra-fast, super-destructive gun whose ammunition was only limited to how much power the army could produce for it. Some features of this site may not work without it. The railgun is mounted on a KF-40 vacuum port and operated using a 90 kA, 11 kV LC pulse forming network. New Progress on Plasma Weapons | Military.com Plasma is to be found in all gas discharge lamps while in operation; it's not magical, it is an ordinary state of matter. However, techniques including exploding foils, gas cell burst disk injection, neutral gas injection through a fast gas valve, and plasma capillary injection have been employed. He describes two promising approaches which are based on demonstrated technology. Privacy Statement The limit is 'cee' . A transferred plasma cutter works by inducing a plasma in a carrier gas, which creates a very conductive path between the electrode and the "target" material, which creates a tremendous amount of heat. Or can it simply generate plasma on discharge? Your message was posted to Facebook. Ltd. All Rights Reserved. However, it is rumored to be a coil gun, not a rail gun. TL: DR, .a project from the 1990's where they build a coaxial plasma railgun, which uses plasma as a KINETIC weapon, accelerating a Torus (a ring) of 0.5-2 milligrams of plasma to relativistic speeds, 1-3% the speed of light, 3000-10,000 km/s. If the shooting stars and the stuff hits the fan, Uncle Sam might pull the Marauder out of mothballs. Hand Held Coil Gun cannon - Enough to rip a giant robot limbs into pieces, Reimagined Weaponry: The Illidari Warglaives. As fascinating of a topic as the research may be, the more important question is whether they went out of their way to make the project acronym marauder, or if it was just a fortunate coincidence that it ended up as that? In this sci-fi world, plasma weapons are somewhat abundant in special forces, as their ammunition can be stored in smaller spaces, and in large quantities, but I ran into a problem regarding confinement: can be created quickly. Obviously, your story, your hands to wave, but this stuff is important to remember if you want a hard-ish scifi setting. Modern Science generally acknowledges that a donut-shape is the best shape for containing Plasma. Plasma is not necessarily hard to confine; for example, those of us who are old enough or who have an interest in the history of computing remember the beautiful Nixie tubes which were used for the displays of computers and calculators made until the 1980s or so; Nixie tubes can be ruggedized, and some have flown in space aboard Soviet (and maybe also American) spacecraft. Louise attended college, married and moved away. Linear railguns consist of two flat plate electrodes separated by insulating spacers and accelerate sheet armatures. The Railgun: The Ultimate Weapon the U.S. Military Can't Build? don't forget we're getting 5 pounds of TNT yield out of a MILIGRAMS of material. | FAQs What's interesting about a Compact Toroid, however, is that they are capable of maintaining structural stability for a fraction of a second after release from the external magnetic fields that created it. What is a realistic maximum velocity of a coilgun round from a 100 m barrel? Most don't need TeX formatting at all, if you know how to type. What were the most popular text editors for MS-DOS in the 1980s? The maximum force you can exert is the yield strength, which might be . your coils are now bigger, and higher power, and need more current to reach the same strength. Now THERE is a coil gun. After graduating from Boston University in 1904, Dr. Warwick and her first husband, Dr. Coles, operated a TB sanitarium in West Keene. 24 Apr 2013 | Posted by Member 30298028. Yes, Shiva Star, that was the '80es project I was thinking about. If we have a 200g projectile with the specific heat capacity of steel (500J/KgK) and the melting point of steel (say, 1800K) we can see that the projectile's temperature will raise by 1K for every 100J of wasted energy. MARAUDER ( Magnetically Accelerated Ring to Achieve Ultra-high Directed Energy and Radiation) is, or was, a United States Air Force Research Laboratory project concerning the development of a coaxial plasma railgun. Registration ends May 5, 2023 at 9:00pm EDT, https://www.whatismybrowser.com/guides/how-to-enable-cookies/auto. At these magnetic field strengths (100T is currently achievable on the relevant timescale), you can exert enough force to crush most solid objects. This set up is not feasible with current technology, as most railgun power sources can only operate barely long enough to fire the projectile. A visit to the preserve in late spring or early summer will reveal some of these plants as well as neo-tropical migrant birds, including warbler and thrush species, and scarlet tanagers. Read how we use cookies and how you can control them by visiting our Privacy Policy. No one has heard a thing about the program since 1995. 'Marauder' was the US military's first plasma railgun - and it might Would this be at all practical as a weapon system? Little is known about it after 1993 because it swiftly Classified Status. [duplicate], fire a self-contained ring of plasma in open air, Picture of a historical neon discharge tube, Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. Worldbuilding Stack Exchange is a question and answer site for writers/artists using science, geography and culture to construct imaginary worlds and settings. A bigger projectile won't help you; you need one with a higher melting point, a larger heat capacity, and a more efficient coilgun to get the speeds you want. I'm interested to know what is the maximum realistic muzzle velocity of a coilgun with a 100m barrel length. Please enable JavaScript if possible. JavaScript is disabled. Large boulders litter the forest floor below the rocky ridges creating habitat for snakes, porcupines and bobcats. How could I contain plasma for use in weapons? [duplicate] Basically, it looks like a donut. A YouTuber by the name of NSA_Listbot has created a railgun that shoots plasma rounds and they were strong enough to fully penetrate a cantaloupe. Outside hard vacuum, that 10000 km/s torus is not going anywhere. Cookie Notice Marauder, marauders, The Marauder, or The Marauders may refer to: Language links are at the top of the page across from the title. Ultimately, the limit is going to be keeping the bullet solid as you push on it. ;). Project MARAUDER Developed by Phillips Laboratory. For a better experience, please enable JavaScript in your browser before proceeding. Especially against space debris. To get the 1.2GJ we want for our 100km/s super-coilgun, we'd need the projectile to sweep out ~0.074m3, which for a 20mm projectile works out as a barrel that's 236m long. This Sub focuses on discussing his videos and exploring concepts in science with an emphasis on futurism, space exploration, along with a healthy dose of science fiction. Scientific plasma railguns are operated in a vacuum. The parcel was so important to the family that they permanently protected it by donating it to The Nature Conservancy in 1964. I'm not sure if this would be able to disable a tank with a single shot, but it is scalable assuming you have this kind of super-capacitive tech. The Nature Conservancy is a nonprofit, tax-exempt charitable organization (tax identification number 53-0242652) under Section 501(c)(3) of the U.S. Internal Revenue Code. Open in Maps, Explore our work in Simple deform modifier is deforming my object. Weighted sum of two random variables ranked by first order stochastic dominance. They work a lot like a Smoke Ring does. | Privacy Policy The strength of the magnetic field is limited by a bunch of inconvenient things. They do still have scaling issues: you have to turn off a coil the instant the projectile is in the middle, and it is hard to simply vanish the field of a very powerful magnet! We can now have a maximum muzzle energy of more like 1.2GJ, which for a 200g round gives us a muzzle velocity of nearly 110km/s. Come enjoy the rolling countryside 4 mile course, we are now celebrating our 19th annual event! However, in a plasma railgun, the armature and ejected projectile consists of plasma, or hot, ionised, gas-like particles, instead of a solid slug of material. While Vladimir Putin is busy touting Russias newest line of hypersonic weapons he is seemingly whipping the world into a frenzy about missiles flying past early warning systems. View Directions There's no free lunch to be had here! However, in a plasma railgun, the armature and ejected projectile consists of plasma, or hot, ionized, gas-like particles, instead of a solid slug of material. It was Motivated by RACE, though I don't know if that's enough to be an off shoot. this region. A tokamak is essentially an infinitely long rail/coil gun that produces a magnetic containment vessel for a super-heated plasma. This is obviously bad for your hopes and dreams. After armature formation, the plasmoid is then accelerated down the length of the railgun by a current pulse driven through one electrode, through the armature, and out the other electrode, creating a large magnetic field behind the armature. It's still an accelerating mass @RossPresser in general, because you can no longer rely on its intermolecular bonds to hold it together. The Marauder uses the same principle in firing the weapon, but instead of the slug, Marauders projectile is superheated, donut-shaped ionized gas particles: plasma. Still not quite good enough for the satellite-based weapon that MARAUDER was meant to bebut pretty solid for ground-based combat. Featured photo: Shiva Star at theAir Force Research Laboratoryat Kirtland Air Force Base. This paper discusses the design and testing of a small, relatively low power coaxial plasma railgun. | Final Year Projects for Engineering Students Railguns, sometimes called mass drivers, are kinetic energy weapons used extensively in the After Calamity Era. Rare plants found here are the broad beech fern, a beautiful purple and white orchid called the showy orchis, spotted wintergreen, and long-spurred violet. The U.S. Navy and Air Force have both developed railgun prototypes. In a plasma railgun, the armature and ejected projectile consist of hot, ionized, gas-like particles heated by a very high temperature. 13-nautical-mile range of the US Navy's standard 5-inch naval gun," In coaxial plasma railguns, the electrodes are concentric. Dr. Coles died in the 1917 flu epidemic. Sogive us a quarter of your tail then? Existing ground-based inertial confinement fusion pellets implode at ~300km/s, and are accelerated over a distance of a few mm (and this is far from the lab speed record). Similar principles apply for plasma railguns. The PPRO1 Plasma Thermal Gun utilizes the electrothermal energy obtained from vaporizing a metallic material, creating a pressure wave of sufficient magnitude to cause a projectile to accelerate to ballistic velocities. Is "I didn't think it was serious" usually a good defence against "duty to rescue"? Notice that the barrel length is much shorter than the dreadnaughts of WW1 fame. Online Courses for Kids Depends on your skill/preference. Some believe that we may not be far from getting containment times measured in Milliseconds ($ms$). Parking space for three to four vehicles is available,just South of a small white-railed bridge. Railguns have long existed as experimental . Better for close range brawling. The experiment which was performed to confirm the properties of the plasma jets produced by the coaxial plasma railgun is explained. Seems to have a lot of . To produce plasma-cutter-like effects on armored vehicles, which I assume is the goal, is slightly different, as the plasma in the above bullet won't last very long after the bullet impacts and the power source is (presumably) destroyed. This is an instability in which the magnetic pressure front can out-run or "blow-by" the plasma armature due to the radial dependence of acceleration current density, drastically reducing device efficiency. Both are from Wikipedia. | As plasma railguns are an open area of research, the method of armature formation varies. The maximum force you can exert is the yield strength, which might be 1GPa; with this pressure over 100m, you get 100GJ/m^2 of energy transfer, and with a low-areal-density 1kg/m^2 bullet, about 400km/s. Did you mean to type The resulting projectile moved at $3,000 km/s$ and struck its target with a $\approx 5$ lb TNT explosion ($5 \times 10^{-7} kT = 2.092MJ$) ---and a potent, short-range electromagnetic pulse. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. There are possibly other things you might be able to do, like packing your projectile in some kind of coolant that is melted and evaporated to cool the projectile as it is accelerated. Mostly realistic weapons to assault a planet from orbit. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Join 250,000+ students from 36+ countries & develop practical skills by building projects. In a plasma railgun, a short pulse of current is passed through a plasma located between two parallel electrodes, or "rails". @PcMan right, silly mistake. Renewed interest has arisen in plasma armatures as evidenced by two papers presented at the 2008 EML Symposium. Round is a solid KE penetrator. | Terms & Conditions A device known as a plasma railgun can be used to produce plasmas which meet these experimental demands. A railgun is an electrically powered electromagnetic projectile launcher based on similar principles to the homopolar motor. The power requirement appears to be immense. ETDs: Virginia Tech Electronic Theses and Dissertations, Requesting that Material be Amended or Removed. In a plasma railgun, a voltage is applied so that current can flow through the flat rail electrodes.
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