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July 22, 2018

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Russia’s Newest Yasen-Class Attack Submarines Are the Equal of America's Subs

Russia has had a lot of wonder weapons in the news, from combat walkers to nuclear-powered cruise missiles. Many of these weapons verge on the ridiculous or are the product of propaganda, but some are legitimately concerning. One scenario that keeps Pentagon planners up at night: the threat of sea-launched cruise missiles, ferried halfway across the Atlantic by Russia’s new submarines, threading their way through American airspace to deliver their deadly nuclear warheads on unsuspecting targets. Welcome to the new Yasen-class submarines. At the end of the Cold War, the Soviet Union had the largest submarine force in the world. From the deep-diving titanium hulled submarine Komsomolets to the nuclear-armed leviathans of the Akula class class the Soviet submarine fleet was large and rapidly catching up to the U.S. submarine fleet. The collapse of the USSR meant the Russia that inherited the Soviet Navy suffered from too many ships and not enough money, and so the new Russian Navy li...

Safran unveils electric motor for hybrid and electric aircraft

The ENGINeUS 45 motor has a continuous power of 45kW (60hp) and is on show at NBAA’s Business Aviation Convention & Exhibition (NBAA-BACE), which opened today in Orlando, Florida. It has built-in, dedicated control electronics with an energy efficiency of over 94%, according to Safran, and a power-to-weight ratio of 2.5kW per kg at 2,500rpm. The ENGINeUS product line will eventually include a range of electric motors with a power output of up to 500kW (670hp). Safran has tested four of these electric motors on the ground on a full distributed propulsion hybrid-electric system, which reflects the demands of hybrid and electric aircraft. “We are proud to present this cutting-edge equipment that boasts top-level aeronautical performance from an electromagnetic, thermal and mechanical perspective. “With this range of engines, we are making a major strategic shift towards the development of VTOL and STOL aircraft, thus opening up promising new markets for Safran,” said Hervé Blanc, Gene...

South Korea accidentally fires Anti-Aircraft Missile

Cheongung-2 or KS-SAM A South Korean Cheolmae-2 air defense systems, also know as Cheongung or KS-SAM, accidentally fired a surface-to-air missile during a routine maintenance check, a country’s Air Force official said.

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