October 24, 2023 | International, Aerospace
Saab Receives Order for Gripen C/D Upgrade
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May 7, 2020 | International, Aerospace
How low-Earth orbit satellites will enable connectivity across all domains of warfare
Nathan Strout
The Space Development Agency will provide the unifying element in the Defense Department's future Joint All-Domain Command and Control concept, pulling together tactical networks developed by the services with a constellation of low-Earth orbit satellites.
With the JADC2 concept, the department envisions an overarching network capable of connecting sensors to shooters regardless of where they are located. That means U.S. Air Force sensors could feed data to U.S. Army shooters, or even National Reconnaissance Office sensors could send information to U.S. Air Force shooters.
“Each of the services have their own way to incorporate [tactical networks], and JADC2 is just a way to make sure they all have the same networking infrastructure to talk to one another, essentially,” SDA Director Derek Tournear said at the C4ISRNET Conference on May 6. “We plug directly into [JADC2] as the space layer to pull all of that communication together.”
Service efforts include programs like the Air Force's Advanced Battle Management System and the Army's TITAN ground system. What the Defense Department wants to ensure is that programs like these have a way to share data across the armed services.
“All of those are reliant on a way to be able to have a back end to go in space to be able to communicate across one another and across back to [the continental United States], etc. That's where the Space Development Agency's transport layer comes in,” Tournear said. “In fact, in the defense planning guidance, Secretary Esper put out the edict that basically said the transport layer will be the integrating aspect of JADC2 to be able to pull all of this tactical communication together in space.”
On May 1, the SDA released its solicitation for the first 10 satellites that will make up its transport layer — a space-based mesh network in low-Earth orbit. When fully developed, that transport layer will provide a global network that various sensors, shooters and tactical networks will be able to plug into for tactical communications.
A key part of that effort involves ensuring space-based sensors can feed into the services' battlefield networks in near-real time.
Once that transport layer is placed on orbit in 2022, the SDA wants to demonstrate space-based sensor data being downlinked to a ground station, then uplinked to the transport layer for dissemination to the tactical edge via TITAN and Link 16 tactical network. But ultimately, the SDA wants to cut out the ground station and move the data directly from the space-based sensor to the transport layer via optical cross links.
That's a stretch goal for those first 10 satellites, and the minimal viable product when the second tranche of 150 satellites is added in 2024, said Tournear.
Tournear declined to identify the SDA's mission partners on development of space-based sensors, which will need to use optical inter-satellite cross links to plug into the transport layer.
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August 17, 2018 | International, Aerospace
UK fighter concept emphasizes stealth, next generation sensors
BY TOM RISEN Britain wants to build a twin-engine stealth fighter jet that the Defense Ministry says would enable the United Kingdom to stay competitive in air-to-air combat technology and maintain its domestic fighter industry. U.K. Defense Secretary Gavin Williamson unveiled a full-scale model of the Tempest at the Farnborough Airshow in July as a commitment that Britain would remain “a world leader in the combat air sector.” The U.K. contractors chosen to design the plane must first present a business case for the fighter to the ministry by the end of the year to begin the approval process for funding. The ministry has promised to draw 2 billion pounds ($2.6 billion) for the Tempest over several years from the ongoing Future Combat Air System Technology Initiative enacted in 2015 that ends in 2025 to develop a successor to the twin-engine Eurofighter Typhoon. Team Tempest, the name for the government agencies and companies working on the project, shared limited details about the design in progress beyond the concept they showcased. With their near diamond shape, the Tempest wings resemble those of the YF-23 stealth fighter demonstrator built in 1990 for the U.S. Air Force by Northrop and McDonnell Douglas, notes Adam Routh, an aerospace researcher at the Center for a New American Security in Washington, D.C. The YF-23 was flown in 1990 but lost the competition for the Air Force contract to what became the Lockheed Martin F-22 Raptor, which ended mass production in 2011. The F-22 engines include thrust vectoring to maneuver the plane around enemy aircraft at close range, which the YF-23 lacked. Thrust vectoring engines were not presented as part of the Tempest concept, possibly because “next generation stealth and guided missiles may undermine the benefits of maneuverability by allowing planes to attack from a significant distance,” Routh says. Pilots of future air-to-air combat won't often find themselves in dogfights won with maneuverability, Routh says, because guided missiles and stealth “will allow aircraft to engage opposing aircraft from a significant distance.” Full article: https://aerospaceamerica.aiaa.org/uk-fighter-concept-emphasizes-stealth-next-generation-sensors
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May 24, 2023 | International, Naval
Poland to launch submarine purchase programme soon - minister
Polish Defence Minister Mariusz Blaszczak said on Wednesday that Poland plans to launch a submarine purchase programme in 2023.