Military History
|
How To Make War
|
Wars Around the World
Rules of Use
How to Behave on an Internet Forum
Air Defense
Discussion Board
Return to Topic Page
Subject:
Iron Dome Faces Bad Numbers
SYSOP
1/10/2013 5:35:56 AM
Quote
Reply
Show Only Poster Name and Title
Newest to Oldest
Pages:
PREV
1
2
3
WarNerd
1/15/2013 1:36:54 PM
I think that we have a communications problem here. Your remarks frequently indicate that you are referring to a design generally classified as a mass driver, or electromagnetic catapult, not a rail gun.
1. Water droplets, alone, hit at Mach 10 would have profound kinetic effects on the solid that hit them. Aluminum sand would have a severe charge effect as well.
You said dust, I assumed similar to that used for paint pigment. Of course much larger sand size particles of aluminum would do more damage to the surface, but are unlikely to penetrate much because they vaporizes on impact. A multi-gram chunk of heavy metal, on the other hand, will punch deep into the weapon.
Dust has erosive effects. At those speeds the heat and charge transfer at contact is significant. This deforms the shape of the moving object and its surface insulator properties (specially one that requires a heat and EM shield). BOOM! Even water vapor is a significant contributor.
So, does that means that ICBM’s can’t be used against targets under cloud cover?
What weight of dust or water droplets are needed to kill an RV? Won’t be much, possibly as little as 50 grams, but if you work out the mass to produce a small cloud big enough and dense enough kill an RV reliably it will be quite large.
< div="">
< div="">
2. Rail, stator, armature.
So which is it? And what was the cable reference to?
The stator: self-contained unit of the magnetic pick-up, consisting of a permanent magnet, an inductive winding, and the pick-up core; the stator can be a disc-shaped pole piece with stator tooth or a simple pole piece.
The rail: is a track guide for the armature. That is all.
The armature: is the slug or the conductive object that carries the slug that completes the LINAC rail-gun electric circuit between the rails.
A rail-gun is a linear accelerator that uses rails NOT coils. It IS a mass driver.
So I guess neither reference was to a stator (no windings in a railgun)?
4. Pitting. That armature sparks as it moves down the rails. That is not just a simple contact short. The magnetic fields rotate.
It is a lot more than sparks, papers on the subject say the surface of the rail is shows signs of repeated melting. The expulsion of vaporized rail material from the muzzle is a safety and environmental concern. One of the biggest problems was the tendency of the projectile to weld to the rails, which was overcome by using a plasma arc for propulsion, but which damages the rails directly.
The problem was pitting.
First experiments.......
A 23 year old report for a railgun operating at lower velocities and energy densities.
Quote
Reply
PREV
1
2
3
Latest
News
Most
Read
Most
Commented
Hot
Topics
AIR DEFENSE: Never Enough Air Defense Missiles
SUBMARINES: US Colombia SSBNs Behind Schedule
PROCUREMENT: Neutral Switzerland Upgrades Its Military
PROCUREMENT: Neutral Switzerland Upgrades Its Military
CHINA: China April 2024 Update
SUBMARINES: New Submarines for Norway
WEAPONS: Russia Running Out of Antique Weapons
SOMALIA: Somalia April 2024
ARTILLERY: New Iranian Weapons
INTELLIGENCE: NATO Suspects a Threat
ATTRITION: Russia fires on Ukrainian Fakes
NAVAL AIR: Tritons Assemble
WEAPONS: South Korean Arms Exports to the Middle East
LIBYA: Libya April Update
ARTILLERY: Russia Bombards Ukraine With North Korean Missiles
WARPLANES: South Korea’s Troubled KF-21 Jet Fighter Project
AIR WEAPONS: Drones Dominate Ukrainian Battlefield
SUBMARINES: Ukraine Obtains Anti-Submarine Weapons
MURPHY'S LAW: Nationwide Impact of Ukraine War in Russia
STRATEGIC WEAPONS: American ARRW Missile Tested
SURFACE FORCES : Vasily Bykov class Corvettes
SPECIAL OPERATIONS: Tatar Rebels in Crimea
PROCUREMENT: China Supercharges Military Spending
ARMOR: M1A2SEP3 Tank Paradox
AIR DEFENSE: Russia Seeks Answers
ARTILLERY: HIMARS Prevails Against Russians
ARTILLERY: Chinese-Truck Mounted Artillery
SURFACE FORCES : Zumwalt Class Destroyers Find a Purpose
ARTILLERY: NATO Artillery Shell Shortage
SUBMARINES: Lada Class Submarine Abandoned
Subscribe to Our RSS Feed
Air Defense: Never Enough Air Defense Missiles
Submarines: US Colombia SSBNs Behind Schedule
WARS China: China April 2024 Update
Weapons: Russia Running Out of Antique Weapons
Procurement: Neutral Switzerland Upgrades Its Military
Procurement: Neutral Switzerland Upgrades Its Military
Submarines: New Submarines for Norway
Artillery: New Iranian Weapons
On PointIsrael's Airspace Defense Victory: Credit Reagan's SDI
WARS Somalia: Somalia April 2024
Intelligence: NATO Suspects a Threat
Attrition: Russia fires on Ukrainian Fakes
Naval Air: Tritons Assemble
Weapons: South Korean Arms Exports to the Middle East
Air Weapons: Drones Dominate Ukrainian Battlefield
Artillery: Russia Bombards Ukraine With North Korean Missiles
WEAPONS: Russia Running Out of Antique Weapons
CHINA: China April 2024 Update
AIR DEFENSE: Where the Patriot Missile Batteries Are
WEAPONS: South Korean Arms Exports to the Middle East
NAVAL AIR: Tritons Assemble
ATTRITION: Russia fires on Ukrainian Fakes
INTELLIGENCE: NATO Suspects a Threat
ARTILLERY: New Iranian Weapons
SOMALIA: Somalia April 2024
SUBMARINES: New Submarines for Norway
SPECIAL OPERATIONS: Ukrainian Improvised Air-Defense Network
SPECIAL OPERATIONS: Ukrainian Improvised Air-Defense Network
PROCUREMENT: Neutral Switzerland Upgrades Its Military
PROCUREMENT: Neutral Switzerland Upgrades Its Military
SUBMARINES: US Colombia SSBNs Behind Schedule
Air Defense: Where the Patriot Missile Batteries Are
News
How To Make War
Wars Around The World
Austin Bay's On Point
StrategyTalk
Dirty Little Secrets
Features
Al Nofi's CIC
Videos
Photos
Jokes
Community
Military Discussion Boards
Military Jokes
Military Photos
Military Book Reviews
StrategyPage
Account Manager
Login
Feedback
About Us
Search
Advertise With Us
Search