Hiển thị các bài đăng có nhãn UAVs. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn UAVs. Hiển thị tất cả bài đăng

Thứ Hai, 16 tháng 12, 2013

UN peacekeepers first time deploy surveillance drones

United Nations forces in Democratic Republic of Congo launched unmanned aircraft on December 3 to monitor the volatile border with Rwanda and Uganda, the first time UN peacekeepers have deployed surveillance drones.

The aircraft will be used to look out for threats from a host of local and foreign armed groups in the mineral rich east where Congo and UN experts have accused Rwanda and Uganda of sending arms and troops to back the recently-defeated M23 rebels, something both countries deny.


“The drones … will allow us to have reliable information about the movement of populations in the areas where there are armed groups,” UN Under-Secretary-General for Peacekeeping Operations Herve Ladsous said at the launch of the drones in Goma, the largest city in eastern Congo.

“We will survey the areas where there are armed groups, and we can control the frontier,” he added.

The U.N. mission has deployed two Falco drones manufactured by Selex ES, a unit of Italian defense group Finmeccanica. One of the 5-metre (16-ft) long aircraft – painted white with the letters UN in black on its wings and tail – performed a demonstration flight for the crowd at the launch.

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The drones will be flown out of Goma by Selex staff. They can fly for between eight and 14 hours and as far as 200 km from their base, according to the company.

UN peacekeepers have received widespread criticism for doing too little to end fighting in eastern Congo, a hilly and thickly forested region that Kinshasa has struggled to control during two decades of virtually constant conflict.

But the drone deployment comes after the peacekeepers helped defeat M23, the most serious rebellion of President Joseph Kabila’s 12-year rule.

General Carlos Alberto dos Santos Cruz, commander of the UN force in Congo, said the drones would only fly over Congolese territory, as UN peacekeepers have no mandate to operate in neighboring countries.

Victory over M23 was the first time Kinshasa had militarily defeated a major uprising in the east. It was helped by strong U.N. support, major reforms in Congo’s army and intense diplomatic pressure on Congo’s neighbors to halt rebel support.

Congo and UN experts say foreign backing for M23 was significant. Following the defeat, experts are examining the origin of a significant stash of weaponry and trucks found at M23′s bases in hills along the Rwandan border.

The drones were due to be launched as early as September, in the hope of monitoring the conflict taking place on the border. However delays meant they arrived only after M23 was defeated.

While a final political deal with M23 is still being ironed out, Congolese and UN forces are now expected to turn their attention to the Rwandan Hutu FDLR rebel group and Ugandan ADF-NALU rebels, both of which are based in Congo’s east.

Thứ Sáu, 6 tháng 12, 2013

US Navy Has Successfully Launched A Drone From A Submerged Submarine

The U.S. Naval Research Laboratory (NRL) with funding from SwampWorks at the Office of Naval Research (ONR) and the Department of Defense Rapid Reaction Technology Office (DoD/RRTO) demonstrated the launch of an all-electric, fuel cell-powered, unmanned aerial system (UAS) from a submerged submarine.

From concept to fleet demonstration, this idea took less than six years to produce results at significant cost savings when compared to traditional programs often taking decades to produce results.

"Developing disruptive technologies and quickly getting them into the hands of our sailors is what our SwampWorks program is all about," said Craig A. Hughes, Acting Director of Innovation at ONR. "This demonstration really underpins ONR's dedication and ability to address emerging fleet priorities." The successful submerged launch of a remotely deployed UAS offers a pathway to providing mission critical intelligence, surveillance and reconnaissance (ISR) capabilities to the U.S. Navy's submarine force.

Operating under support of the Los Angeles class USS Providence (SSN 719) and the Naval Undersea Warfare Center-Newport Division (NUWC-NPT), the NRL developed XFC UAS—eXperimental Fuel Cell Unmanned Aerial System—was fired from the submarine's torpedo tube using a 'Sea Robin' launch vehicle system. The Sea Robin launch system was designed to fit within an empty Tomahawk launch canister (TLC) used for launching Tomahawk cruise missiles already familiar to submarine sailors.

Once deployed from the TLC, the Sea Robin launch vehicle with integrated XFC rose to the ocean surface where it appeared as a spar buoy. Upon command of Providence Commanding Officer, the XFC then vertically launched from Sea Robin and flew a successful several hour mission demonstrating live video capabilities streamed back to Providence, surface support vessels and Norfolk before landing at the Naval Sea Systems Command Atlantic Undersea Test and Evaluation Center (AUTEC), Andros, Bahamas.

"This six-year effort represents the best in collaboration of a Navy laboratory and industry to produce a technology that meets the needs of the special operations community," said Dr. Warren Schultz, program developer and manager, NRL. "The creativity and resourcefulness brought to this project by a unique team of scientists and engineers represents an unprecedented paradigm shift in UAV propulsion and launch systems."

The NRL Chemistry and Tactical Electronic Warfare Divisions team includes the design-builder of the Sea Robin, Oceaneering International Inc., Hanover, Md.; the fuel cell developer Protonex Technology Corp., Southborough, Mass.; and NUWC-NPT's Autonomous and Defensive Systems Department for Temporary Alteration (TEMPALT) and test demonstration support. The XFC is a fully autonomous, all electric fuel cell powered folding wing UAS with an endurance of greater than six hours.

The non-hybridized power plant supports the propulsion system and payload for a flight endurance that enables relatively low cost, low altitude, ISR missions. The XFC UAS uses an electrically assisted take off system which lifts the plane vertically out of its container and therefore, enables a very small footprint launch such as from a pickup truck or small surface vessel.

- See more at: http://www.nrl.navy.mil/media/news-releases/2013/navy-launches-uav-from-submerged-submarine#sthash.qXkG5XLD.dpuf