8 mai 2024 | International, Aérospatial
NATO drone surveillance hours surge amid growing appetite for intel
“The North Atlantic security environment is under threat,” said Scott Bray, the assistant secretary general for intelligence and security.
6 septembre 2018 | International, Aérospatial
Bell collaborates on Micro-Unmanned Aerial Systems
Researchers from the U.S. Army Research Laboratory and Bell Helicopter met in June 2018 to focus on the development of micro unmanned aerial systems (UAS). The project surrounds what Bell describes as miniature, lightweight reconnaissance vehicles that soldiers can carry onto the battlefield and deploy in a confined space.
The collaboration began after Bell representatives travelled to Adelphi, Maryland, to attend an open campus event at the U.S. Army Research Laboratory (ARL) in November 2016. After a year and a half of information sharing, the two parties signed a five-year cooperative research and development agreement (CRADA) in March 2018.
“We're trying to get data on the fundamental level, to build up a knowledge base of vehicles, because their expertise is in designing the vehicles, whereas our expertise is the fundamentals of them,” said Dr. John Hrynuk, a mechanical engineer in ARL's Vehicle Technology Directorate (VTD). “We want new technology; they want new vehicles. Together, we want to enhance technologies for the soldiers – that's what makes it the absolute perfect collaboration.”
Bell engineers Dakota Easley and Levi Hefner recently visited ARL to perform experiments on micro UAS using the facility's wind tunnel. Bell explains the visit was prompted by vehicle control challenges its researchers had observed in early flight testing. With the help of ARL scientists and equipment, according to Bell, the engineers were able to isolate their earlier challenges and improve the performance of the aerial vehicle.
“The wind tunnel here at ARL has been beneficial in providing data that explains why certain things are happening on the control side. Now we're able to better analyze our tests to enhance the performance of our vehicles,” Hefner said. “This collaboration is great because we're heading into a new design space with these small vehicles.”
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31 décembre 2018 | International, Aérospatial, Terrestre
Russia says its new weapon is 27 times faster than the speed of sound
By: Vladimir Isachenkov, The Associated Press MOSCOW — Russia's new strategic weapon has rendered any missile defenses useless at a small fraction of their cost, officials said Thursday. The Avangard hypersonic glide vehicle flies 27 times faster than the speed of sound, making it impossible to intercept, Deputy Prime Minister Yuri Borisov told Russian state television. The new weapon “essentially makes missile defenses useless,” he said. Borisov spoke a day after Russian President Vladimir Putin oversaw what he described as the conclusive successful test of the Avangard and hailed it as a reliable guarantee of Russia's security for decades to come. In Wednesday's test, the weapon was launched from the Dombarovskiy missile base in the southern Ural Mountains. The Kremlin said it successfully hit a practice target on the Kura shooting range on Kamchatka, 3,700 miles away. The Defense Ministry released footage from the test launch, in which a ballistic missile could be seen blasting from a silo in a cloud of smoke, but it hasn't released any images of the vehicle itself. Putin said the Avangard will enter service with the Russian Strategic Missile Forces next year. The test comes amid bitter tensions in Russia-U.S. relations, which have been strained over the Ukrainian crisis, the war in Syria and the allegations of Moscow's meddling in the 2016 U.S. presidential election. Sergei Ivanov, a former Russian defense minister, said in televised comments that the Avangard constantly changes its course and altitude as it flies through the atmosphere. He emphasized that unlike previous nuclear warheads fitted to intercontinental ballistic missiles that follow a predictable trajectory allowing it to calculate the spot where they can be intercepted, the Avangard chaotically zigzags on its path to its target, making it impossible to predict the weapon's location. A smiling Ivanov likened the weapon's flight through the atmosphere to a pebble skipping off the surface of water. Ivanov, who now serves as Putin's adviser, said the Avangard could be fitted to the Soviet-made UR-100UTTKh intercontinental ballistic missile, which is code-named SS-19 Stiletto by NATO. He noted that Russia has a stockpile of several dozen such missiles, which are in a factory-mint condition and not filled with fuel, allowing them to serve for a long time to come. Ivanov added that they could be put in existing silos, sharply reducing the costs of Avangard's deployment. "The Avangard has cost hundreds of times less than what the U.S. has spent on its missile defense," Ivanov said. He noted that Russia began to develop the Avangard after the U.S. started to develop defenses against ballistic missiles. Moscow feared that the U.S. missile shield could erode its nuclear deterrent, and Putin announced in 2004 that Russia was working on a new hypersonic weapon. Ivanov recalled that when Russian officials warned their U.S. counterparts about the new weapon program at the time, American officials were openly skeptical about Russia's ability to carry out its plan. “We aren't involved in saber-rattling, we simply ensured our security for decades to come,” he said. https://www.militarytimes.com/news/your-military/2018/12/27/russia-says-its-new-weapon-is-27-times-faster-than-the-speed-of-sound
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30 juillet 2024 | International, Naval, C4ISR, Sécurité
SAFECOM Releases New Resource for Cloud Adoption | CISA