Archive for the 'Technology' Category

A Self-Guided Bullet?

Feb 03 2012

Published by under Technology

Say what?! DangerRoom blog has the scoop on some new miltech that could really do some damage, courtesy of Sandia Laboratories:

Each self-guided bullet is around 4 inches in length. At the tip is an optical sensor, that can detect a laser beam being shone on a far-off target. Actuators inside the bullet get intel from the bullet’s sensor, and then “steer tiny fins that guide the bullet to the target.” The bullet can self-correct its navigational path 30 times a second, all while flying more than twice the speed of sound…

Even with an ace marksman, researchers found that a typical unguided bullet — operating in real world conditions that might include crosswinds or changes in air density — would miss a target that was a half-mile away by nine meters. A guided bullet, however, could get within eight inches of that same target.

 

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Mil Tech — Navy Plans Fleet of Unmanned Underwater Gliders

Feb 01 2012

Published by under Technology

The U.S. Navy has moved into full rate production of its underwater Littoral Battlespace Sensing-Glider (LBS-G) program, calling for the manufacture of 35 gliders from a Huntsville, Ala., company.

Teledyne Brown Engineering Inc. will make the gliders, with the option of producing an additional 100, under a contract with the Space and Naval Warfare Systems Command worth up to $53.1 million for 150 units. Teledyne already has delivered 15 gliders to the Navy’s Program Executive Office.

The LBS-G, 8 inches in diameter and 6 feet long, is driven in a saw-tooth vertical profile by variable buoyancy using the ocean’s own temperature and pressure differences and has the ability to move both vertically and horizontally.

The LBS-G can dive to 3,280 feet and has a range of 24,000 miles and a projected endurance for its thermal engine of three to five years. It can navigate using GPS, a magnetic compass, an altimeter, or subsurface dead reckoning. Its sensor package includes conductivity, temperature, and depth modules, and it can communicate via RF modem, Iridium satellite and Argos, a worldwide tracking and environmental monitoring system.

Clayton Jones, senior director for Teledyne Webb Research in East Falmouth, Mass., says the core technology of the glider is “all about the displacement of water around it. When the displacement is collapsing, the glider becomes more dense and sinks; if it expands, the glider becomes less dense and rises.”

A piston pump assembly in the nose cone of the LBS-G functions to change the volume of seawater in the vehicle. The LBS-G has wings that can be deflected to translate some of the glider’s vertical motion to the horizontal plane, so it is effectively flying up or down at an angle in the water. Steering is accomplished through a tailfin rudder.

“The glider might be programmed to sink to 2,000 feet, stay there for 10 days, then rise up through the water column taking measurements of conductivity, temperature and depth,” Jones says. “At the surface, it would transmit its information, then return back down to its assigned depth.”

The glider typically is programmed to submerge, perform a mission, and come to the surface to communicate, Jones notes. It then can be returned to its current mission or sent on a new mission that might be programmed with a series of way points of when to surface and communicate again.

Information from the gliders is useful not only for weather predictions but also for submarine commanders, who want to know where thermal boundaries are located to enable them to better hide their subs from detection.

About the author: Alan M. Petrillo is a Tucson, Ariz., freelance writer who works in a wide variety of fields, writing for national and regional magazines and newspapers. He’s also the author of the mystery novel, Full Moon, and several books on historical military small arms.

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Mil Tech — New Unmanned Aircraft Offers Perch and Stare Capability

Jan 02 2012

Published by under Technology

AeroVironment of Monrovia, Calif., has added to its successful line of small unmanned aircraft systems — Raven, Wasp, Puma AE, and Nano Hummingbird — with the development of the Shrike VTOL (Vertical Takeoff and Landing) system.

Funded by a DARPA contract, the Shrike VTOL offers controllers a portable and stealthy aircraft with persistent perch and stare capabilities.

The Shrike VTOL rotorcraft is able to hover for more than 40 minutes with a high-resolution camera and can transmit several hours of live video as a remotely emplaced perch and stare sensor. Shrike weighs approximately 5.5 pounds, operates so quietly it can go virtually undetected, and is small enough to fit into a backpack.

Jeff Rodrian, AeroVironment’s program manager for Shrike and Wasp product lines, says Shrike is powered by a quad motor design that is similar to other AeroVironment unmanned aerial vehicles (UAV) with electric motors and lithium-based batteries for flight and other control functions.

“The Shrike can take off vertically and immediately go into a hover for a mission, transition from that loitering mission to land at a separate location to perch, and still receive ISR (intelligence, surveillance and reconnaissance) information, especially video,” Rodrian says, “and then transition back into flight where it can be landed and recovered.”

Rodrian confirms currently the Shrike primarily is using a payload of electro-optical and ISR imagery similar to Raven and Puma UAVs.

“The unique aspect of the Shrike, which uses a digital data link [DDL] transceiver and a hand controller, is that in relay mode you can operate the Shrike from another [DDL] aircraft like the Raven or Puma,” he says.

The range achieved with the DDL typically is 5 kilometers, Rodrian says , but can be extended with the relay capability through a second DDL-equipped aircraft. Shrike’s operational service ceiling ranges from 2 to 500 feet above ground level, chiefly as a result of the optics it carries, though the craft can fly much higher.

Steve Gitlin, AeroVironment’s vice president of marketing strategy, says Shrike is the first rotorcraft introduced into the unmanned aircraft systems.

“True hover, perc,h and stare is what Shrike is designed for,” Gitlin says.

He notes AeroVironment is conducting advanced demonstrations and trials for U.. military forces to showcase the Shrike’s capabilities.

“We want to allow them the opportunity to gain experience with the system and incorporate it into the way they operate, “Gitlin says. “It’s amazing how creative our customers are when we put a new capability in their hands.”

About the author: Alan M. Petrillo is a Tucson, Ariz., freelance writer who works in a wide variety of fields, writing for national and regional magazines and newspapers. He’s also the author of the mystery novel, Full Moon, and several books on historical military small arms.

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Google for Veterans

Dec 30 2011

Google has launched a new online center for veterans, aggregating free tools they hope will be useful to servicemembers and their families. Try out the site and let them know what you think - toolsforveterans@gmail.com

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Mil Tech — New Kryron Armor Nearly Impenetrable

Dec 05 2011

Published by under Technology

A Tucson, Ariz., inventor has come up with a patented technology that can produce lightweight, near-impenetrable body and vehicle armor from aluminum.

Dubbed Kryron and made by Bourque Industries Inc., the metal alloy is lighter, often stronger, and has a uniquely higher electrical and lower thermal conductivity than the materials it replaces.

Bourque’s first application is for ballistic armor for the military and law enforcement, but the firm recently conducted a successful live-fire demonstration of a Kryron ballistics helmet. The helmet, after being shot with an AK-47 from approximately 10 feet, showed no penetration.

“There was no penetration at all,” says John Bourque, the company’s owner and Kryron’s inventor. “There was some deformation, but it was survivable deformation.”

Bourque notes that as far as he knows, the test was the first successful test where a rifle bullet struck a helmet and did not penetrate.

Bourque says Kryron is produced by blending a nano-enhanced additive into different metals.

“Once we add it to our aluminum bases, it creates an intense shock to the metal,” he says. “When the Kryron is impacted the first time, it shock-hardens the material for the next shock that is to come. Throughout all our testing, the first shot of six against our Kryron body armor was the highest shock where the greatest back face deformation was seen, with each successive shot showing less deformation.”

Bourque says his company’s Kryron body armor is being used by special operations in theater right now.

“Our stand-alone armor weighs in the 7 pound range and will take multiple impacts,” he points out. It needs no soft armor behind it to work. You can put two clips into it and it will still function.”

Bourque Industries also makes an in-conjunction Kryron body armor system where a slip plate is placed in front of a soft-armor vest.

The company also has tested a Kryron armor plate that can defeat .50-caliber armor piercing (AP) rounds.

“We’ve proved it at Dugway Proving Ground in Utah and at Fort Bragg in North Carolina,” Bourque says. “We use our process to restructure the metal itself and put it in armored vehicle strike plates.”

Bourque adds that typically 1-1/2-inches of solid steel is needed to defeat a .50-caliber AP round, but that such armor weighs about 50 pounds per square foot.

“We can reduce that weight by between 30 and 50 percent,” he says, “depending on the vehicle, and still provide .50-caliber AP protection.”

About the author: Alan M. Petrillo is a Tucson, Ariz., freelance writer who writes for national and regional magazines and newspapers. He’s also the author of the mystery novel, Full Moon, and several books on historical military small arms.

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MU Engineers Developing Military Apps for Smartphones

Dec 01 2011

Professor Yi Shang

Tracking military targets? The University of Missouri’s College of Engineering has an app for that!

Engineers from the MU College of Engineering, with funding from the U.S. Army/Leonard Wood Institute, have enhanced popular smartphones to be able to find and track targets. In addition, the engineers have developed ad hoc networks so that soldiers can relay smartphone information without using the internet.

“The goal of the project is to provide the exact location of a remote target, through either sound or sight,” said Yi Shang, professor of computer science. “The Android phones and iPhones have powerful processors, which allow us to write complicated programs. Each smartphone has a camera, a microphone, GPS, a compass, an accelerometer, and several other sensors that we can utilize. Plus, these phones typically support three kinds of wireless communication: Bluetooth, WiFi and cellular.”

Shang has worked for ten years in wireless sensors, but has recently begun working with smartphones just as consumers would buy them, “off the shelf.” Collaborators Wenjun Zeng and Dominic Ho, MU professors of computer science, brought expertise in mobile networking, multimedia and signal processing, and have turned the phones into powerful tools for soldiers in combat situations.

“Imagine a team of soldiers in the field,” said Shang. “They see a distant enemy target, but lasers used to provide guidance to the target may be visible to the enemy. With our smartphone-based system, team members could take pictures of the target and obtain a GPS location, which can be relayed via wireless networks to interested parties.”

In addition, the researchers have developed a sound-based localization method for dark or urban environments. A group of soldiers could record a sound and share it, and software would allow the soldiers to determine the location of the sound source.

There are civilian applications to this technology as well. Emergency responders could use the software to identify a location or direct traffic, or tourists could use the application to identify an unfamiliar object or building with the exact location.

“The technology is still in the early stages of development, but it holds a lot of promise,” said Shang. “If we can achieve our goals, the application will be a very useful tool for our soldiers and the general public.”

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Mil Tech — Small Tactical Munition Warhead for UAS Vehicles

Oct 31 2011

Published by under Technology

Raytheon Company has tested a new warhead for its small tactical munition (STM), a new weapon that’s specifically designed for employment on unmanned aircraft systems (UAS).

The STM is a 13-pound guided munition that’s 22 inches long and 3.6 inches in diameter, which makes it the smallest air-launched weapon Raytheon makes.

Because of the new warhead’s low weight — 5 pounds — and its significantly improved blast fragment capability, it allows an UAS to fly farther and faster and carry more weapons. The warhead, manufactured by NammoTalley, allows weaponization of smaller UAS, such as the Shadow 200, which currently cannot be weaponized because of payload limitations.

Don Newman, Raytheon’s director of unmanned system flight operations in Tucson, Ariz., said the smaller STM is in response to a U.S. Marine Corps urgent operational need statement to put weapons on the Shadow.

“Shadow has no weapons now, but it’s always seeing people planting IEDs and other types of explosives,” Newman says. “We’re trying to develop what’s needed for them on that platform.”

Newman points out the new STM is a precision-guided weapon, but because it now carries a smaller warhead, its lethality radius goes down.

“We expect it will be used on relatively soft targets, but it still has the precision needed to take them out,” he observes. “The STM is a highly effective custom-built weapon that carries a lethal punch, and we believe it could be used on the Predator, Reaper, and the U.S. Army’s Gray Eagle [a Predator version].”

Mike Nachshen, Raytheon’s public information officer, says the new STM is designed to go after certain targets — lightly armored vehicles, troops in the open, and similar targets of opportunity.

Newman notes the total weight that can be put on a Shadow is 60 pounds, meaning arming it with two STMs on the wings, along with the electronics package to manage them.

Contrast that payload with the Predator, which can carry a single Hellfire missile on its wing. Newman points out  Hellfire could be replaced by six to eight STMs on the same station.

Newman says the STM with the new warhead is compatible with the Air Force, Army, Navy, and Marine Corps common launch tube. The weapon also can be gravity dropped, which will be how the STM will be delivered by Shadow.

“With all the unmanned aircraft out there in use, we anticipate a lot of STMs being built,” Newman says. “And incidentally, this STM can also be used on manned aircraft.”

About the author: Alan M. Petrillo is a Tucson, Ariz., freelance writer who works in a wide variety of fields, writing for national and regional magazines and newspapers. He’s also the author of the mystery novel, Full Moon, and several books on historical military small arms.

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Operation: Lighten the Load

Oct 06 2011

The Armed Services YMCA (ASYMCA) launched “Operation: Lighten the Load,” a campaign designed to raise awareness, understanding and appreciation of the heavy burden of military life for service members and their families alike, and what others can do to make life easier for those who are dedicated to serving our nation.

The campaign hub is www.operationlightentheload.org, where service members and military families are encouraged to upload videos of their “military life” stories and how the programs and services of the Armed Services YMCA help make their lives easier. They are stories of hope, strength and sacrifice that show just how great their commitment is to our country – and just how much they deserve the support of the neighbors, communities and organizations like the Armed Services YMCA. Volunteers and supporters are also encouraged to share videos of why they’ve made a commitment to help “Lighten the Load.”

Selected stories will be chosen to appear in a public service announcement for the Armed Services YMCA, airing Dec. 30, 2011, during the Bell Helicopter Armed Forces Bowl on ESPN. The stories will also appear on the jumbotron inside Ford Stadium in Dallas, Texas during the game.

Soldiers, military families, volunteers and civilians will also be encouraged to share their stories or show their gratitude and support via Facebook and Twitter, using the hashtag #asymca.

Edith and Samuel love craft time at ASYMCA-FLW! from ASYMCA on Vimeo.

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Mil Tech — BAMS System on Track for U.S. Navy

Oct 03 2011

Published by under Technology

Northrop Grumman’s development of the Broad Area Maritime Surveillance (BAMS) unmanned aircraft system (UAS) for the U.S. Navy is on track and scheduled to roll out its first aircraft in March of 2012.

Northrop Grumman won a $1.1 billion contract to develop BAMS with a version of its Global Hawk surveillance aircraft, designated the MQ-4C. The BAMS program seeks to provide persistent maritime intelligence, surveillance and reconnaissance  data collection, and dissemination capability to the Navy’s Maritime Patrol and Reconnaissance Force.

The MQ-4C is 47.6-feet long with a 130.9-foot wingspan, has a 2,800-feet-per-minute rate of climb, a 330-knot cruise speed, an operational ceiling of 60,000 feet, a maximum unrefueled range of 9,550 miles, and can operate uninterrupted for 24 hours.

Powered by a Rolls-Royce AE3007H engine developing 8,500-pounds of thrust, the UAS can carry a 3,200-pound internal payload and 2,400-pound external payload.

The aircraft’s nose carries an AN/DAS-3 EO/IR (electro-optical infrared) unit that has a 360-degree field of regard, auto-target tracking, high-resolution EO/IR at multiple fields of view, and multimode color video.

A blister on the MQ-4C’s belly carries an AN/ZPY-1 multifunction active sensor maritime radar that incorporates a 360-degree X-band 2D AESA radar operating in maritime and air/ground modes.

An advanced mission management system housed in the fuselage has an onboard server, provides data correlation, and gives payload and bandwidth control.

Walt Kreitler, Northrop Grumman’s BAMS business development director, says the MQ-4C has persistence and endurance, using the advantage of flying a very high altitude where there is not much wind resistance.

“The remarkable aspect about the MQ-4C is it can fly out 650 miles, stay out there for 24 hours, and then come back to base,” Kreitler says. “It used to take several sorties of manned aircraft to track a single surface ship, but now we can do it with a single UAV.”

Kreitler notes the MQ-4C meets the Navy’s rigorous requirements for deicing caps in the wings, anti-icing in the engine cowlings, enhanced anti-bird strike resistance, and a sense-and-avoid capability that allows the UAV to see what else is flying around  it.

U.S. Navy Cap. Jim Hoke, BAMS program manager, says the MQ-4C has a dip capability that allows it to descend below weather if needed for a closer look and then return to a higher altitude and an automatic identification system with the ability to identify ships over a certain tonnage carrying a transponder.

The Navy plans to have five orbits of BAMS aircraft with the ability to do 24/7/365 operations at a 2,000-mile radius, Hoke says. The number of aircraft required to support five orbits is 22, he notes, with two in extended maintenance and the other 20 on operations.

“We’ll be buying a total of 68 BAMS UAVs because we need to fly these units until 2039, so we’ll have to replace them over time so we always have 22 operational units,” Hoke adds. “And within naval aviation, this is the first time the P-8 and BAMS will be working closely together, giving us a manned and unmanned solution to replace the manned-only mission.”

About the author: Alan M. Petrillo is a Tucson, Ariz., freelance writer who works in a wide variety of fields, writing for national and regional magazines and newspapers. He’s also the author of the mystery novel, Full Moon, and several books on historical military small arms.

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Electronic Health Records May Be Coming to a Doctors Office Near You

Sep 07 2011

The Department of Veterans Affairs (VA) announced it has completed an important milestone on its joint path with the Department of Defense (DoD) to create a single electronic health record system for servicemembers and Veterans. OSEHRA, the Open Source Electronic Health Record Agent, has begun operations and will serve as the central governing body of a new open source Electronic Health Record (EHR) community.

“We developed our open source strategy to engage the public and private sectors in the rapid advancement of our EHR software, which is central to the care we deliver to Veterans and servicemembers and to our joint EHR collaboration with the Department of Defense,” said Secretary of Veterans Affairs Eric K. Shinseki. “With the launch of OSEHRA, we begin the implementation of our strategy and we look forward to the creation of a vibrant open source EHR community.”

Individuals and organizations interested in participating in OSEHRA are invited to join through the community website.

Community feedback is welcome as the OSEHRA team finalizes these designs in preparation for launch of full technical operations this fall.

Read the full release from the VA online.

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