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Category: military – Page 208

Excalibur S GPS/laser-guided artillery shell homes in on moving target

Raytheon and the US Navy have successfully fired a precision-guided munition that can be fired from a howitzer and zero in on a moving object. The recent test of the Excalibur S round not only demonstrated its ability to switch from GPS to laser guidance to find its target, but also that its electronics and sensors can withstand the shock of being fired out of a gun.

The Excalibur S is the latest variant of Raytheon’s Excalibur line of smart projectiles. Developed by Raytheon and BAE Systems Bofors, it uses the GPS technology from the Excalibur Ib, and combines it with a semi-active laser seeker that allows it to home in on moving land and maritime targets with a miss radius of under two meters (6.5 ft).

The Excalibur system is designed to work with a variety of artillery and can extend the range of a .52 caliber gun to over 50 km (31 mi) to hit or damage its target with the first round. When the Excalibur S is first fired, it uses GPS to make its initial target fix, then switches over to its laser sensor to home in on an outside targeting beam.

Air Force test-launches intercontinental ballistic missile

The U.S. military test-launched an unarmed intercontinental ballistic missile (ICBM) early Wednesday, Air Force Global Strike Command said in a news release.

The Minuteman III, which the Air Force said was fitted with a test re-entry vehicle, was launched at 12:33 a.m. Pacific Time from Vandenberg Air Force Base, Calif.

The re-entry vehicle traveled about 4,200 miles to the Kwajalein Atoll in the Marshall Islands, the release said.

DARPA is testing drones it can launch from a plane—then collect mid-air

The news: The Defense Advanced Research Projects Agency (DARPA) has conducted the first test of a new type of drone that can be launched from a plane in a swarm and recovered in mid-air when it’s done its job.

How it works: A military transport or bomber plane releases a series of drones in rapid succession. They carry out the task designated to them (surveillance, for example) and then return to the plane, docking on a line before being winched in. It looks a bit like the airborne refueling process.

Testing: A test, which took place in Utah in November but was first reported this week, showed that a military transport plane can successfully launch and monitor the drone, known as an X-61A Gremlin. However, after a successful mid-air launch and a flight lasting one hour, 41 minutes, the drone crashed when “mechanical issues” prevented its parachute from deploying, the firm behind the drone, Dynetics, said in a press statement. There’s video of the test here (it includes bad music, be warned). This spring, DARPA will try to fly and recover four of the drones for the first time.

This Cloth Destroys Deadly Nerve Agents in Minutes

In Omar Farha’s lab at Northwestern University, the chemist and his team are working on an unusual craft project in collaboration with the United States Army. They mix powders and liquids into a paint-like consistency, dip swatches of cotton fabric into the liquid, and then leave the beige cloth out to dry. Through this process, they are creating fabrics that can rapidly neutralize some of the deadliest poisons known to humankind: nerve agents.

Chemists are collaborating with the US Army to build uniforms that can quickly break down toxic substances, protecting soldiers from chemical weapons.

The Navy Is Arming Nuclear Subs With Lasers. No One Knows Why

O.o.

Laser weapons can strike at the speed of light, and they’re quickly deploying to every possible fighting domain, whether on land, in the air, and at sea. But what about under the sea?

Open-source budget documents, the earliest of which date back to 2011, show the Navy’s plans to arm Virginia-class nuclear subs with high-energy laser weapons. It’s a strange idea seeing as laser weapons definitely do not work underwater. Submarines are also quiet recluses by design, rarely popping their heads above water.

USAF set to field StormBreaker on F-15E

The US Air Force (USAF) is expected to declare an initial operating capability (IOC) with the Raytheon Missile Systems GBU-53/B StormBreaker glide munition on the Boeing F-15E Strike Eagle multirole combat aircraft in the first half of this year, following compliance with a Required Assets Available (RAA) milestone, which is anticipated in the next few weeks.

The StormBreaker RAA is the pre-IOC benchmark capability to arm 12 USAF F-15Es with two, fully-loaded (four weapons) BRU-61/A carriage systems each for 1.5 sorties (144 assets total).

Optimised to address moving battlefield targets, StormBreaker — formerly designated ‘Small Diameter Bomb II’ — is a 250 lb-class, air-launched unpowered glide weapon system furnished with a unique tri-mode seeker, which combines millimetre wave (MMW) radar, imaging infrared (IIR), and semi-active laser (SAL) sensors with a GPS/inertial navigation system (INS) autopilot (the provider for which is undisclosed) for precision accuracy in adverse weather conditions. The seeker’s optical dome is protected by a clamshell shroud, which is jettisoned before the seeker is activated. A Rockwell Collins TacNet bi-directional dual-band datalink enables Joint Tactical Information Distribution System (JTIDS) connectivity with aircraft and an ultra-high frequency (UHF) link with a ground designator.

A robot is my Wingman

In a recent IEEE Spectrum article, read how autonomous fighter jets will accompany human-piloted planes. This self-piloted airplane may be the first experiment to truly portend the end of the era of crewed warplanes. #autonomousplane #autonomousfighterjet

If you drive along the main northern road through South Australia with a good set of binoculars, you may soon be able to catch a glimpse of a strange, windowless jet, one that is about to embark on its maiden flight. It’s a prototype of the next big thing in aerial combat: a self-piloted warplane designed to work together with human-piloted aircraft.

Pentagon report: DoD needs to test how satellites would perform under attack

WASHINGTON — The Defense Department’s director of operational test and evaluation warns in a new report that the military today is not able to assess the durability of its satellites if they came under attack.

DoD plans to invest at least $100 billion in space systems over the next decade, “and we are not alone,” writes DOT&E director Robert Behler in his just released annual report for fiscal year 2019.

“We therefore must thoroughly understand how our systems will perform in space, particularly when facing man-made threats,” says the report. “Yet, the DoD currently has no real means to assess adequately the operational effectiveness, suitability and survivability of space-based systems in a representative environment.

DARPA deploys swarms of autonomous robots to carry out urban raid

A swarm of autonomous robots has been deployed by researchers from DARPA to test how the technology could be used as part of an urban raid. The experiment was part of a project to find ways to map environments and gather real-time intelligence using aerial and land based robots.

In the not-so-distant future, hundreds of unmanned drones and on-the-ground rovers could swoop into an area of interest and spew crucial data to human military operators faced with limited sight lines or tasked with navigating unpredictable spaces, researchers the Defense Advanced Research Projects Agency (DARPA) said this week.

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