Small Diameter Bomb – GBU-39

The GBU-39 Small Diameter Bomb – the future of ultra-surgical air strikes.
Since the days of the first Gulf War, when it became clear to the world that precision air strikes would be the “go to” option for the opening rounds of nearly any theater scale military operations, the technology of precision guided munitions has increased rapidly.  We have witnessed bombs being guided into their targets by lasers, GPS, and even a human watching through a camera on the nose of the weapon.  Once the concept of precision guidance was no longer a novelty, the virtuous auspices of limiting collateral damage and economic efficiency have led military planners and weapons designers to push the envelope of precision weapon technology even further.
During the Desert Storm era, the smallest precision bombs available packed 500 lb high-explosive warheads, and the 500 pounder was typically used on only the smallest of targets.  They certainly were precise enough on surgical targeting, but the massive explosion and pressure wave still causes widespread devastation to buildings and well, people, that are in the vicinity of the blast.  Now I’m not saying that it’s ever goign to be possible to truly eliminate collateral damage, but I believe technology has reached a stopping point concerning precision-guided air-launched munitions.  It’s not as if limiting collateral damage is such a bad thing after all; so I guess we can go ahead and bestow the honorable hallmark characteristic of the next wave of precision munitions:  Efficiency…because accuracy is a given.
Fresh on the block is the new GBU-39 Small Diameter Bomb.  The GBU-39 is the first 250 lb class precision guided munition, and is not only intended to allow the pilot to strike more targets per sortie, but also to -you guessed it- limit collateral damage.  A full rack of GBU-39s, 4 bombs total, can easily take the place of one 2000 lb GBU 109 “bunker buster” guided bomb on typical strike platforms such as the F-15C or F-22 Raptor aircraft.  While the 2000 lb GBU-109 penetrator definitely retains its place as a select weapon of choice for large and hardended targets, the GBU-39 SDB surpasses the GBU-109 in many different realms of performance.  For starters, the GBU-39 also has significant stand-off capabilities.  With it’s guidance wings, the bomb can coast into targets from far greater ranges than the GBU-109, from more than 40 nautical miles out.  Likewise, the design of the warhead also allows the Small Diameter Bomb to achieve the same penetration capabilities of it’s much larger 2000 lb counterpart.  All in all, the SMB GBU-39 allows for a great amount of flexibility for whomever is designing strike missions for an urban environment.

Not only does the GBU-39 Small Diameter Bomb limit it’s size to only 250 lbs, it also can be fitted with different types of warheads, one of which is specially designed to limit the blast radius and shockwave of the explosion.  This new explosive is called D.I.M.E., short for Dense Inert Metal Explosive.  DIME explosives basically combine a powder of inert metals–inert means that the metal is resistant to chemical reactions–into the explosive, which essentially weighs down the blast.  The explosive ignites, but the metal powder will only fly so far before air resistance and gravity will slow it down.  DIME explosives are proven to limit the blast radius of explosions, but they are also notorious for the effects that they can have on personnel.  Decapitations, dismemberments, and even cancer later down the line caused by the imbedded metal powder are all facts of life when DIME is deployed.  i guess the counter-point is that those folks were at the wrong place at the wrong time, especially under the known threat of air raids.
Fast forward to Israel’s Operation Cast Lead against the Hamas regime in Gaza, and you’ve got the exact scenario where this weapon is intended to be used.  A cr

owded urban environment, where military targets are amorphous among the civilian landscape, and limiting collateral damage is essential to maintaining some semblance of self-restraint, saw small diameter bombs being deployed in large numbers.  Indeed, reports have come out of Gaza of people suffering the effects of DIME explosives, but the IDF remains deflective about admitting to their use.  The use of the GBU-39 that isn’t debated is the penetrator version being deployed against the smuggling tunnels at the Rafah crossing.  The IDF deployed multiple GBU-39 penetetrators along the lengths of the tunnels, essentially burying them in successive sections.plz give me how to improve my blogs

i get this acticel from

http://www.futurefirepower.com/small-diameter-bomb-gbu-39
plz give me how to improve my blogs

Close Up Photos of China’s Carrier

Happy new year everyone.  I hope you’re all well rested after the holidays. Let’s kick this week off with these very, very close-up pictures of China’s aircraft carrier, the ex-Soviet Varyag.

While we’ve written about the new weapon systems the Chinese are installing aboard her, notice these pics show some early 1960s-vintage RBU-6000 Soviet-designed anti-submarine rocket launchers. Nothing like some 50-year-old weaponry to outfit your “new” carrier. Although, another picture shows a more modern rolling airframe missile launcher.

Click through the jump too see the photos that emerged on China Defense Blog yesterday.

Read more: http://defensetech.org/2012/01/03/close-up-photos-of-chinas-carrier/#ixzz1iUiCmI44 
Defense.org 
plz give me how to improve my blogs

Liquid Body Armor

ABERDEEN PROVING GROUND, MD -- Liquid armor for Kevlar vests is one of the newest technologies being developed at the U.S. Army Research Laboratory to save Soldiers' lives.

This type of body armor is light and flexible, which allows soldiers to be more mobile and won’t hinder an individual from running or aiming his or her weapon.

The key component of liquid armor is a shear thickening fluid. STF is composed of hard particles suspended in a liquid. The liquid, polyethylene glycol, is non-toxic, and can withstand a wide range of temperatures. Hard, nano-particles of silica are the other components of STF. This combination of flowable and hard components results in a material with unusual properties.

“During normal handling, the STF is very deformable and flows like a liquid. However, once a bullet or frag hits the vest, it transitions to a rigid material, which prevents the projectile from penetrating the Soldier’s body,” said Dr. Eric Wetzel, a mechanical engineer from the Weapons and Materials Research Directorate who heads the project team.

To make liquid armor, STF is soaked into all layers of the Kevlar vest. The Kevlar fabric holds the STF in place, and also helps to stop the bullet. The saturated fabric can be soaked, draped, and sewn just like any other fabric.

Wetzel and his team have been working on this technology with Dr. Norman J. Wagner and his students from the University of Delaware for three years.

“The goal of the technology is to create a new material that is low cost and lightweight which offers equivalent or superior ballistic properties as compared to current Kevlar fabric, but has more flexibility and less thickness,” said Wetzel. “This technology has a lot of potential.”

Liquid armor is still undergoing laboratory tests, but Wetzel is enthusiastic about other applications that the technology might be applied to.

“The sky’s the limit,” said Wetzel. “We would first like to put this material in a soldier’s sleeves and pants, areas that aren’t protected by ballistic vests but need to remain flexible. We could also use this material for bomb blankets, to cover suspicious packages or unexploded ordnance. Liquid armor could even be applied to jump boots, so that they would stiffen during impact to support Soldiers' ankles.”

In addition to saving Soldiers' lives, Wetzel said liquid armor in Kevlar vests could help those who work in law enforcement.

“Prison guards and police officers could also benefit from this technology,” said Wetzel. “Liquid armor is much more stab resistant than conventional body armor. This capability is especially important for prison guards, who are most often attacked with handmade sharp weapons.”

For their work on liquid armor, Wetzel and his team were awarded the 2002 Paul A. Siple Award, the Army’s highest award for scientific achievement, at the Army Science Conference.

http://usmilitary.about.com/cs/armyweapons/a/liquidarmor.htm

plz give me how to improve my blogs

Our New Megabase in Afghanistan

So, this is some drone-related news about the Afghan war that we missed. While most media attention has been focused on CIA drone bases in Pakistan, the U.S. last year transformed the remote ex-Soviet air field at Shindand, near the Iranian border, into the second biggest air base in all Afghanistan.

The perimeter of the once sprawling Soviet base was officially expanded to three times its size to accommodate the Afghan air force’s undergraduate pilot training center. However, with last month’s downing of an RQ-170 Sentinel stealth drone, news emerged that Shindand plays host to the secret UAVs, which had previously only been known to fly out of Kandahar air base.

Read more: http://defensetech.org/2012/01/03/our-new-megabase-in-afghanistan/#ixzz1iUhaDoTY 
Defense.org 


plz give me how to improve my blogs

Lillypad City: The floating city

new town when ice meld down 

i get from  you tube 

http://www.youtube.com/watch?v=d98u3jr47Fc&feature=related

 plz give me how to improve my blogs

Lockheed Martin Completes Critical Testing Milestone on Navy’s Remote Minehunting System

12/28/11 —   Lockheed Martin completed 500 hours of reliability testing on the U.S. Navy’s Remote Multi-Mission Vehicle (RMMV), marking a critical testing milestone. The system will provide mine reconnaissance capabilities to the Littoral Combat Ship (LCS). RMMV is an unmanned, semi-submersible, semi-autonomous vehicle that tows a variable-depth sensor that can detect and identify undersea threats. “RMMV is critical to the Navy’s mine countermeasures,” said Richard Holmberg, vice president of mission and unmanned systems at Lockheed Martin’s Mission Systems & Sensors business. “As this testing demonstrates, we are making significant progress toward the system’s operational use aboard the Littoral Combat Ship.”  for moe information plz click this  link
http://www.roboticstrends.com/topics/security_defense_robotics/
plz give me how to improve my blogs

Army to Deploy Vertical Take-Off UAS

12/28/11 —   The U.S. Army is using a hybrid-type acquisition approach to develop a helicopter-like, Vertical-Take-Off-and-Landing Unmanned Aerial System with a so-called ARGUS wide-area surveillance sensor suite designed to beam back information and images of the surrounding terrain, service officials said.  Beginning in May or June of 2012, the Army will deploy three Boeing-built A160 Hummingbird Vertical-Take-Off-and-Landing Unmanned Aerial Systems, or VTOL-UAS, to Afghanistan as part of a Quick Reaction Capability, an acquisition approach aimed at delivering cutting-edge and emerging technologies to theater to add capability and inform requirements while simultaneously developing a formal Program of Record approach, said Lt. Col for more informaion pliz clinik http://www.roboticstrends.com/security_defense_robotics/article/army_to_deploy_vertical_take_off_uas.…


plz give me how to improve my blogs