US Navy takes delivery of new, more powerful radar

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  7 avril 2020 | International, Aérospatial, C4ISR

  The Pentagon will solicit its first mesh network in space May 1

  Nathan Strout and Valerie Insinna The Space Development Agency plans to award contracts for a mesh network in space this August, with the expectation that an initial batch of 20 satellites will be placed on orbit during summer 2022. The agency expects to release a request for proposals for the contracts May 1. The announcement came during an industry day the agency hosted over the phone April 2. The industry day was originally slated to take place during the 36th Space Symposium in Colorado Springs April 2, however, after that event was cancelled due to the circumstances with COVID-19 the agency opted to hold a virtual industry day instead. According to SDA Director Derek Tournear, 580 people called in for the event. That first batch will include 20 satellites and will comprise what Pentagon leaders are calling Tranche 0 of the SDA's Transport Layer, a mesh network of satellites operating primarily in low earth orbit and will be able to connect space-based sensors to the war fighter. According to Tournear, the agency has six goals for its Trache 0 Transport Layer: Demonstrate low latency data transport to the war fighter over the optical crosslink mesh network. Demonstrate the ability to deliver data from a space sensor to the war fighter via the Transport Layer. Demonstrate a limited battle management C2 functionality. Transfer Integrated Broadcast System data across the mesh network to the war fighter Store, relay and transmit Link-16 data over the network in near real time. Operate a timing signature independent of GPS references to the US Naval Observatory. Following Tranche 0, the SDA plans to continuously upgrade and add to its on orbit constellation in two year cycles, with Tranche 1 coming online in FY2024, Tranche 2 supplementing the system in FY2026. The SDA will procure two types of satellites for Tranche 0, with one main difference being that one set of satellites will have enough optical intersatellite links to communicate with other satellites operating in LEO and satellites in medium earth orbit or geosynchronous orbit, while the other will only have enough to communicate with other satellites in LEO. The agency is tasked with building the National Defense Space Architecture, which will be made up of hundreds of satellites operating in low earth orbit providing a multitude of missions, from tracking hypersonic weapons to providing alternative position, navigation and timing data. The Transport Layer will serve as the backbone of the NDSA, connecting the various satellites to each other and to the war fighter. And according to Tournear, the Transport Layer will provide the key space network component to the Department of Defense's Joint All-Domain Command and Control. “The transport layer, which is what the draft RFP and the industry day was talking about today, is going to be the unifying effort across the department. That is going to be what we use for low latency (communications) to be able to pull these networks together, and that, in essence, is going to be the main unifying truss for the JADC2 and that effort moving forward. That is going to be the space network that is utilized for that,” explained Tournear. The agency released the draft RFP March 26. The SDA is soliciting feedback on the draft RFP for Tranche 0 through April 17 and plans to release the full RFP May 1. Contracts will be awarded in August, Tournear said, though the agency wants to see the proposals before deciding how many companies it will award contracts to. https://www.c4isrnet.com/battlefield-tech/space/2020/04/06/the-pentagon-will-solicit-its-first-mesh-network-in-space-may-1/

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  23 octobre 2020 | International, Aérospatial

  European nations should shape their air-combat fleets to support the F-35, US analysts say

  By: Sebastian Sprenger COLOGNE, Germany — European NATO nations without the fifth-generation F-35 combat jet should mold their fleets to complement the U.S.-developed aircraft in future operations, according to a new report commissioned by U.S. European Command. The analysis, done by the think tank Rand and published Oct. 22, ascribes such a vital advantage to the F-35′s stealth and sensor-fusion features that the jet would be the only aircraft suitable for an initial contact with Russian forces in the event of a conflict. Following that logic, European nations that have already signed up for the Lockheed Martin-made jet should hone their tactics toward that initial engagement, and countries with less advanced aircraft should strive to maximize their ability to complement such an operation, the authors argued. The United Kingdom, the Netherlands, Denmark, Norway, Belgium and Italy are European NATO members in various stages of getting F-35 aircraft. One tier below that, in the eyes of Rand analysts, are countries like Germany or France whose Eurofighter and Rafale fleets, respectively, have sensors advanced enough to be considered “fourth-generation-plus” aircraft. The report's recommendations are based on the hypothetical premise of a Russian land grab on the alliance's eastern flank. “One common scenario considers a calculation by the Russian government that Russia could leverage a regional imbalance in ground forces to occupy some slice of NATO territory, employ air defenses to stave off allied air forces, present a fait accompli similar to that seen in Crimea, and politically divide NATO by calling for negotiations,” the document stated. “The ability of European fifth-generation fighters to penetrate Russian air defenses and make significant combat contributions from the opening hours of a response — at the vanguard — would most likely challenge the logic behind this scenario, improving deterrence by increasing the Russian risks associated with this approach.” The observation follows the belief, which the authors propose is shared by Russia, that NATO forces have the upper hand in air-combat capability, whereas Moscow has the lead in ground forces. To be sure, the Rand analysis covers only one dimension in a potential confrontation with Russia. Air and naval assets as well as cyber weapons for information warfare would also shape the battlefield in potentially unpredictable ways, not to mention any surprise capabilities that either side could throw into the mix to nullify the opponent's technological advantage. The problem for European nations' fourth-generation and “fourth-generation-plus” aircraft, which lack stealth capabilities, is the inability to get close enough to targets without getting shot down by sophisticated air defense weapons, according to Rand. The key to making the best of the continent's aircraft mix is developing the fleets with greater interoperability in mind, the analysts argued. In that sense, non-stealthy combat planes, which typically can carry more weapons than the F-35, still have an important role to play after more advanced fighters clear any ground-based threats. European nations are studying two versions of a sixth-generation weapon for air combat, namely the Tempest project (led by the U.K.) and the Future Combat Air System (led by France and Germany). Those aircraft ideas are slated to come online around 2040, which puts them outside of the scope of the Rand analysis. https://www.defensenews.com/global/europe/2020/10/22/european-nations-should-shape-their-air-combat-fleets-to-support-the-f-35-us-analysts-say/

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  18 mars 2022 | International, Naval

  Poland eyes three new vessels to boost Baltic Sea mine-hunting chops

  With the planned procurement, the Polish Navy is to reach a total of six modern mine countermeasure vessels in its fleet.