German leaders abandon blockade of Eurofighter sale to Saudi Arabia

Sur le même sujet

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  13 juin 2023 | International, Autre défense

  Estonia’s global arms buying spree seeks drastic combat gains

  Tallinn officials have set their defense spending on a path toward 3% of GDP, spurred by a threat assessment of the Baltic region.

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  13 juin 2019 | International, Sécurité, Autre défense

  What’s so sweet about sugar cube-sized robots?

  By: Kelsey D. Atherton If there is anything the future is lacking, it's robots the size of Chiclets. Draper, working under a grant from the Defense Advanced Research Projects Agency, is creating centimeter-sized robots, for future use in rescue work. The project is named “SHort-Range Independent Microrobotic Platforms,” or “SHRIMP” for short. And short is the nature of the game. SHRIMP is based on the 4 cm long, 1.5 g Harvard Ambulatory MicroRobot (HAMR), and wants to shrink it down to a single cubic centimeter. That will require microelectromechanical systems, 3D printing, piezoelectric actuators and, this is crucial, low-power sensors. Once all of that is in place, Draper claims the microbot will be able to jump, sense, navigate and control itself. The design will rely on feet inspired by living creatures to give it extra friction on rough and vertical terrain, and inertial measurement to detect where it is on the ground. “The microrobotic platform capabilities enabled by SHRIMP will provide the DoD with significantly more access and capability to operate in small spaces that are practically inaccessible to today's state-of-the-art robotic platforms,” declared DARPA in the proposer's day note. “Such capability will have impact in search and rescue, disaster relief, infrastructure inspection, and equipment maintenance, among other operations.” The exact “how” of what these robots will do in disaster relief, inspection, maintenance or other operations is yet to be determined, and will largely hinge on the sensors that can be fit to the platform. The most useful thing a small robot can do is get into a space and send information back to humans about that space, but that's hardly the only metric to evaluate the platform. As part of the SHRIMP program, DARPA will have the robot designs compete through a series of events modeled after the Olympics. These include high jump, long jump, weightlifting, shot put, tug of war, rock piling, steeplechase, biathlon, vertical ascent — all ways to find out what useful tasks tiny robots can do. There's a world of speculation between a dime-sized robot that can pile rocks and a useful military tool, but the fact that DARPA is invested in the technology as a platform suggests that, should the technology get there, the design will have some unexpected utility. In the meantime, DARPA's interest suggests there's good odds on a future market for sensors designed for dice-sized robots. https://www.c4isrnet.com/unmanned/robotics/2019/06/12/what-does-darpa-want-with-sugarcube-sized-robots/

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  5 février 2021 | International, Aérospatial

  Leonardo’s new airborne HF radio to equip the Northrop Grumman E-2D fleet purchased by the U.S. Navy and international customers

  Rome, February 4, 2021 - Leonardo has been awarded a contract by Northrop Grumman to provide its new high frequency (HF) radio system, the SRT-400, for the U.S. Navy's fleet of E-2D Advanced Hawkeye airborne early warning and control aircraft. Leonardo has been involved in the design and manufacture of airborne HF systems for decades. Leonardo's experience dates back to the 1970s, having sold thousands of its previous generation RT-170 (170W), RT-270 (200W) and RT-470 (400W) to customers around the world. Leonardo's extensive research and development activities in the high frequency airborne radio field has led to the design and production of the state-of-the-art HF Single Side Band system SRT-400, which is suitable for fixed and rotary wing aircraft. A patented Leonardo technology reduces TX power consumption by more than 40% compared to previous designs, reducing heat dissipation and greatly improving reliability. Both transceivers can be interfaced with multiple Antenna Tuning Units (ATU) matching all kinds of existing antennas (loop, wire or notch). The SRT-400 and its low power variant, the SRT-200, combine high flexibility and simplified operations into a reduced size and weight package achieved through innovative electrical and mechanical design. Variants of the E-2 Hawkeye have been in operation since the early 1960s. It provides ship or land based all-weather airborne early warning and command and control, detecting and tracking targets at extended range in deep water, littoral and over-land environments. View source version on Leonardo: https://www.leonardocompany.com/en/press-release-detail/-/detail/04-02-2021-leonardo-s-new-airborne-hf-radio-to-equip-the-northrop-grumman-e-2d-fleet-purchased-by-the-u-s-navy-and-international-customers