Monday, May 25, 2015
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Science & Defence Technology

Picatinny Arsenal puts M249 machinegun on diet; details other projects

LSAT prototype.When engineers at Picatinny Arsenal in New Jersey looked at the heavy, 17.5-pound M249 carried by Soldiers, they decided to put it on a diet and rearrange some of the components.

Guided bullet hits moving targets

A guided bullet.DARPA’s Extreme Accuracy Tasked Ordnance (EXACTO) program, which developed a self-steering bullet to increase hit rates for difficult, long-distance shots, completed in February its most successful round of live-fire tests to date.

X-47B demonstrates first autonomous aerial refuelling

X-47 refuelling.Northrop Grumman and the U.S. Navy successfully demonstrated fully autonomous aerial refuelling (AAR) with the X-47B Unmanned Combat Air System Demonstration (UCAS-D) aircraft on April 22, marking the first time in history that an unmanned aircraft has refuelled in-flight.

US Navy railgun set for ground, sea trials In 2016

Railgun test.The Electromagnetic Railgun is a high-risk, high-payoff technology that the US Navy says is meeting its objectives. But ideas alone rarely make it to prime time without additional enabling factors and activities.

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