soulxtc
February 17th, 2006, 10:07 AM
Weapons Grade author David Hambling has another fascinating two-part series for Defense Tech, on weapons that drill and scrape their way through targets.
Meet Deep Digger, first of a revolutionary new generation of bunker-busting weapons, described in this week’s New Scientist. This is literally ground-breaking new technology which uses cannon to tunnel through solid rock, drilling a channel for the bomb.
http://www.defensetech.org/images/deep_digger_slide.JPG
Existing weapons for attacking hard targets are kinetic, relying on sheer momentum to break through rock and concrete. To get much improvement you have to make them much bigger - like the outsize 30,000 lb Massive Ordnance Penetrator, or much faster - like the proposed conventional version of the D5 Trident ballistic missile, or denser - like the heavy BLU-109 with its ballast of dense metal. But you can’t get around the laws of physics. As Princeton's Robert Nelson points out in a very thorough analysis, even if the penetrator is a hypersonic projectile made of solid depleted uranium:
“…no Earth Penetrating Weapon can penetrate reinforced concrete deeper than four times the length of the missile.”
So this approach really isn’t going to get you more than a hundred feet through rock at best, and the practical limit is much less.
The supercavitating bunker-buster I revealed last year looks neat, but the jury is still out on whether it works. A lot of people in the industry simply don’t believe that it can. The Broach is an interesting idea but limited to a few metres.
http://www.defensetech.org/images/deep_digger_hole.JPG
Deep Digger is different. It does not depend on the kinetic energy of the warhead at all – in fact, it parachutes down. Then it stars drilling. The weapon is limited only by how deep the drilling process can go, which is a matter of how deep it can ‘muck’ (clear debris from the shaft). And although the details are classified, that is much, much deeper than any kinetic weapon will ever go. In the tests last year, it demonstrated a tunneled down ten meters(32 ft) -- about 50% more than the BLU-113, which is the current record holder.
READ ARTICLE (http://www.defensetech.org/)
Meet Deep Digger, first of a revolutionary new generation of bunker-busting weapons, described in this week’s New Scientist. This is literally ground-breaking new technology which uses cannon to tunnel through solid rock, drilling a channel for the bomb.
http://www.defensetech.org/images/deep_digger_slide.JPG
Existing weapons for attacking hard targets are kinetic, relying on sheer momentum to break through rock and concrete. To get much improvement you have to make them much bigger - like the outsize 30,000 lb Massive Ordnance Penetrator, or much faster - like the proposed conventional version of the D5 Trident ballistic missile, or denser - like the heavy BLU-109 with its ballast of dense metal. But you can’t get around the laws of physics. As Princeton's Robert Nelson points out in a very thorough analysis, even if the penetrator is a hypersonic projectile made of solid depleted uranium:
“…no Earth Penetrating Weapon can penetrate reinforced concrete deeper than four times the length of the missile.”
So this approach really isn’t going to get you more than a hundred feet through rock at best, and the practical limit is much less.
The supercavitating bunker-buster I revealed last year looks neat, but the jury is still out on whether it works. A lot of people in the industry simply don’t believe that it can. The Broach is an interesting idea but limited to a few metres.
http://www.defensetech.org/images/deep_digger_hole.JPG
Deep Digger is different. It does not depend on the kinetic energy of the warhead at all – in fact, it parachutes down. Then it stars drilling. The weapon is limited only by how deep the drilling process can go, which is a matter of how deep it can ‘muck’ (clear debris from the shaft). And although the details are classified, that is much, much deeper than any kinetic weapon will ever go. In the tests last year, it demonstrated a tunneled down ten meters(32 ft) -- about 50% more than the BLU-113, which is the current record holder.
READ ARTICLE (http://www.defensetech.org/)