L3Harris awarded $81 Million contract to connect Multi-Orbit satellite constellations

Sur le même sujet

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  22 août 2018 | International, Aérospatial, C4ISR

  Air Force’s next GPS satellite ready to boost accuracy, anti-jamming capabilities

  By: Daniel Cebul Lockheed's Martin second GPS III satellite has passed all of the U.S. Air Force's technical and safety tests and is ready to be launched, likely in 2019, according to a company statement Aug. 21. The statement marks the formal designation that the satellite is “available for launch.” The first GPS III satellite was available for launch in September 2017 aboard a SpaceX Falcon 9 rocket and is set to liftoff from Cape Canaveral Air Force Station in Florida before the end of 2018. The next satellite will launch aboard a rocket from United Launch Alliance. The new satellite constellation is expected to be a significant improvement over the current generation of satellites. According to Harris Corp., the company that provides Lockheed Martin with the satellites navigation payload, the next-gen satellites are equipped with “a Mission Data Unit (MDU) with a unique 70 percent digital design that links atomic clocks, radiation-hardened computers and powerful transmitters." This allows for signals three times more accurate than those on current GPS satellites, the company said. In addition to being more accurate, the satellite is also eight times more resistant to jamming. This model also adds and maintains signals to ensure compatibility with Global Navigation Satellite Systems and provide stronger signal integrity. Harris also unveiled an upgraded payload in November 2017 to be used for the Air Force's GPS III Follow On (GPS IIIF) program, which will begin with the 11th GPS III satellite. This next-gen payload will grant the clock signal for a new GPS III Search and Rescue (SAR) payload, and extend the satellite's service life. Lockheed Martin is expected to be the prime contractor. In June, the third GPS III satellite completed thermal vacuum and environmental testing to simulate how the satellite will hold up in the space's unforgiving environment. https://www.c4isrnet.com/c2-comms/satellites/2018/08/21/air-forces-next-gps-satellite-ready-to-boost-accuracy-anti-jamming-capabilities

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  9 octobre 2019 | International, Terrestre, C4ISR

  Beetle-like Iranian robots can roll under tanks

  By: Kelsey D. Atherton On screen, the small robot slides perfectly underneath the textureless tank. It is a modern iteration of an old promise in remote warfare, rendered with all the processing power of a desktop PC from 1994. Can a small, cheap robot prove useful against the vehicles of an enemy at war? A recent exhibition of unmanned ground vehicles by Iran suggests that the possibility, if not the reality, is already in development. Designed by the Research and Self-Sufficiency Jihad Organization of the Iranian Army, the Heidair-1 is almost certainly bound for life as an expendable battlefield platform. “There are many countries and forces using small [unmanned ground vehicles] for ISR and other roles — many belligerents in the Middle East have them, including several DIY models made by non-state actors,” said Samuel Bendett, an adviser at the Center for Naval Analyses. The Islamic Republic of Iran Army Ground Forces, or NEZAJA, shared pictures of the new machine on Twitter Oct. 3. The default body of the robot is a six-wheeled tan box, with a pair of antenna sticking out toward the rear of the machine. Of the six Heidair-1 platforms featured, two were models with assault rifles mounted on top of the little rovers, magazines pointed skyward. “NEZAJA had an expo in Tehran where it unveiled several concepts, including this small UGV, Heidar-1. It appears to be a proof of concept, and there is no evidence of this UGV taking part in combat,” Bendett said. In the same video, NEZAJA shows one of the robots driving toward a rough tank-like shape. It explodes, fulfilling the promise of the simulation, and hearkening back to an earlier era of anti-tank warfare. In World War II, Germany fielded thousands of Goliath remote-control anti-tank mines, designed to crawl under parked tanks and detonate through the softer armor below. “This is the first time we have seen Iran unveil such a vehicle,” said Bendett, a fellow in Russia studies at the American Foreign Policy Council. “Equally interesting is their claim that this will be a ‘networked' system of vehicles that can presumably function in more or less autonomous mode. At this point, however, they are remote-controlled devices.” In a video demonstration, the rovers are either single-use mines or armed with machine guns. They are shown being used as combined arms with flying multirotor scouts. Whatever the guts of the new rolling rovers, the ability to guide them remotely to targets spotted by drone adds to the range of threats small robots can pose to armored vehicles. “This Heidair-1UGV may act ... as a kamikaze vehicle that may sneak up on its target much faster given its overall small size,” Bendett said. “We may not see this UGV operate in Iranian Army, but we may see such a vehicle operated by Houthis in their campaign against the Kingdom of Saudi Arabia and its aligned forces.” https://www.c4isrnet.com/unmanned/2019/10/08/beetle-like-iranian-robots-roll-under-tanks/

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  23 juillet 2020 | International, Aérospatial

  Singapore requests future F-35 training location also host its F-16 jets

  By: Mike Yeo and Valerie Insinna MELBOURNE, Australia — Singapore has told the U.S. Air Force it wants to co-locate its Arizona-based F-16 training detachment with its future F-35 training unit, with five locations in the U.S. shortlisted as potential sites for training international F-35 operators. In a statement to Defense News, U.S. Air Force spokeswoman Ann Stefanek said the service “plans to establish an F-35 Foreign Military Sales training Center in the Continental United States which could accommodate up to 36 F-35 aircraft.” “Based on negotiations with our foreign military sales customers as well as airspace and weather considerations, the Air Force is considering five candidate locations. Those include Buckley AFB, Colorado; Fort Smith Airport, Arkansas; Hulman Field, Indiana; Joint Base San Antonio-Lackland, Texas; and Selfridge Air National Guard Base, Michigan,” she added. In a statement announcing that Fort Smith Regional Airport was under consideration, Arkansas Sen. Tom Cotton said that Air Force Secretary Barbara Barrett signed a memorandum July 6 to establish the training center. He also revealed that Singapore — which is a Foreign Military Sales customer for the F-35B, having been cleared earlier this year to purchase four aircraft with an option for eight more — wants to co-locate its F-16 squadron, currently based at Luke Air Force Base, with its F-35s as a “long-term Foreign Military Sales location.” The Air Force's Stefanek explained that this is “to make room for additional USAF/Partner F-35s at Luke AFB,” and that once the new FMS F-35 training location is selected, that location will also be considered for Singapore's F-16 training detachment. Defense News understands that the future F-35 FMS training base would host some countries and their jets on a rotational basis, while others might maintain a permanent presence. The latter group would likely include land-scarce Singapore, which already maintains permanent aircraft training detachments in the U.S. in addition to the Luke AFB-based F-16s. The Asian nation is also setting up a rotating training presence in Guam for its fighter aircraft. Most of the shortlisted bases currently host few or no permanent flying units, and none of them are currently earmarked to operate F-35s in the future. It will take significant capital to set up an F-35 FMS training facility because existing infrastructure will need modifications to support the fifth-generation stealth fighter's operations. Luke AFB, which is located at the outskirts of Phoenix, Arizona, will reach its aircraft hosting capacity in the coming years. Its resident U.S. Air Force squadrons are set to convert from F-16s to the F-35A, and the base itself will continue to be the training location for F-35 international partner nations. This means the two international F-16 training detachments currently on base — Singapore and Taiwan — will have to move. Taiwan's F-16 jets were set to move to the nearby Arizona Air National Guard base in Tucson, but local media reported in August 2019 that the country is instead seeking to move to a base closer to the Pacific coast to better accommodate Taiwanese pilots training with U.S. Navy carrier strike groups. https://www.defensenews.com/training-sim/2020/07/22/singapore-requests-new-f-35-training-location-also-host-its-f-16-jets