13 décembre 2021 | International, Aérospatial

Un drone aux capacités d'emport record dévoilé par General Atomics

General Atomics vient de dévoiler le Mojave, un nouveau drone multi-missions à décollage court capable d'opérer sans piste de décollage préparée. Le Mojave possède une charge utile record pour un appareil STOL (short take of and landing, décollage et atterrissage court), et son autonomie est portée à huit heures lors des missions d'observation. Développé sur la base des caractéristiques du MQ-9 Reaper et du MQ-1C Gray Eagle-ER, le drone Mojave peut emporter jusqu'à 1600 kg de carburant, pour des missions d'attaque au sol ou d'ISR, la flexibilité du système devant permettre une configuration simple et rapide de la machine. Les premiers vols du prototype du Mojave ont eu lieu pendant l'été 2021. Le nouvel appareil n'a pour l'instant reçu aucune commande, mais de potentiels utilisateurs seraient intéressés à l'export.

Air & Cosmos du 10 décembre

Sur le même sujet

  • Here’s who will build the US Army’s new missile defense radar

    17 octobre 2019 | International, Terrestre

    Here’s who will build the US Army’s new missile defense radar

    By: Jen Judson WASHINGTON — Incumbent Raytheon will build the U.S. Army's new missile defense radar to replace the Patriot air and missile defense system's current radar as part of the service's future Integrated Air and Missile Defense System. The company has taken its years of experience refining gallium nitride, or GaN, technology at its Massachusetts-based foundry to help design a new radar system that will provide the Army 360-degree threat detection capability in a configuration that includes one large array in the front and two smaller arrays in the back. The contract is worth roughly $384 million to deliver six production-representative units of the Lower Tier Air and Missile Defense Sensor, or LTAMDS. “Our clean-sheet approach to LTAMDS reinforces Raytheon's position as the world's premier air and missile defense radar capability provider,” Ralph Acaba, president of Raytheon Integrated Defense Systems, said in a statement. The service earlier this year held a “sense-off” at White Sands Missile Range, New Mexico, between three working radars from Raytheon, a Lockheed Martin and Elta Systems team,and Northrop Grumman. The service analyzed the results and was in contract negotiations with the winner as the Association of the U.S. Army's annual conference, which kicked off Oct. 14. Brig. Gen. Brian Gibson, who is in charge of the service's air and missile defense modernization effort, told Defense News in an interview ahead of the show that negotiations were ongoing and that the award would happen soon. Without public knowledge of the win, Raytheon brought its offering for the LTAMDS competition to the show and passed out red lanyards advertising LTAMDS that said: “No time for a blind spot,” referring to the 360-degree coverage capability. Replacing the Patriot radar has been a long time coming. The radar was first fielded in the 1980s, and the Army previously attempted to replace the system with Lockheed Martin's Medium Extended Air Defense System through an international co-development effort with Germany and Italy. But that program was canceled in the U.S. after closing out a proof-of-concept phase roughly six years ago. Since then, the Army studied and debated how to replace the Patriot radar, while Raytheon continued to upgrade its radar to keep pace with current threats. The service has acknowledged there will come a point where radar upgrades will be unable to keep up with future threats. Taking years to decide, the service moved forward on a competition to replace the radar in 2017 and chose four companies to come up with design concepts for the capability — Raytheon, Lockheed Martin, Northrop Grumman and Technovative Applications. Toward the end of 2018, Raytheon and Lockheed were chosen to continue technology development under that program. But then the Army redirected its plans into a sense-off competition last fall. Raytheon is expected to build six prototypes by the end of fiscal 2022. The radar that Raytheon specifically designed for the Army uses next-generation GaN and is 7 feet longer but 11 inches more narrow than the current radar unit. But it no longer requires outrigger stabilizing legs. Rather, the system is held stable by jacks underneath, which means it takes up less space on the sides, according to Bob Kelley, Raytheon's director of domestic integrated air and missile defense programs for business development and strategy. The radar meets all of the Army's mobility and transport requirements, Kelley said, including fitting in a C-17 aircraft. The smaller arrays are about 50 percent of the size of the legacy Patriot system's array, but are twice as capable due to the advancements with GaN technology, he added. Though the Army backed off its 360-degree detection capability requirement for the competition, Raytheon has been steadfast about keeping that capability in its offering. In addition to being able to constantly cover 360 degrees, the radar can see farther than the currently fielded Patriot radar. That radar is unable to fully support the maximum kinematic range of the Patriot Advanced Capability-3 Missile Segment Enhancement that it fires. The Army claims that its effort to tie the Terminal High Altitude Area Defense System with Patriot would help the MSE missile reach its full potential. The LTAMDS will be able to fully support current missile systems including PAC-3 MSE range capability and future missiles ranges, Kelley said. https://www.defensenews.com/breaking-news/2019/10/17/heres-who-will-build-the-armys-new-missile-defense-radar

  • Contract Awards by US Department of Defense - February 19, 2019

    25 février 2019 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité, Autre défense

    Contract Awards by US Department of Defense - February 19, 2019

    AIR FORCE United Launch Services, Centennial, Colorado, has been awarded a $441,761,778 firm-fixed-price contract, for launch services to deliver the SILENTBARKER, SBIRS GEO-5, and SBIRS GEO-6 missions to their intended orbits. This launch service contract will include launch vehicle production, mission integration, mission launch operations/spaceflight worthiness, and mission unique activities for SILENTBARKER and SBIRS GEO-5, with an option for an additional SBIRS GEO-6 launch service. The locations of performance are Centennial, Colorado; and Cape Canaveral, Florida. SILENTBARKER is expected to be completed by March 2022, SBIRS GEO-5 is expected to be completed by March 2021. This award is the result of a competitive acquisition and two offers were received. Fiscal 2018 and 2019 space procurement funds in the amount of $308,550,970 will be obligated at the time of award. The Contracting Division, Launch Systems Enterprise Directorate, Space and Missile Systems Center, Los Angeles Air Force Base, El Segundo, California, is the contracting activity (FA8811-19-C-0005). Space Exploration Technologies Corp., Hawthorne, California, has been awarded a $297,000,000 firm-fixed-price contract, for launch services to deliver the NROL-87, NROL-85, and AFSPC-44 missions to their intended orbits. This launch service contract will include launch vehicle production, mission integration, mission launch operations/spaceflight worthiness and mission unique activities for each mission. The locations of performance are Hawthorne, California; Cape Canaveral Air Force Space Station, Florida; and Vandenberg Air Force Base, California. NROL-85 and NROL-87 are expected to be completed by December 2021 and AFSPC-44 is expected to be completed by February 2021. This award is the result of a competitive acquisition and two offers were received. Fiscal 2018 and 2019 space procurement funds in the amount of $285,223,097 will be obligated at the time of award. The Contracting Division, Launch Systems Enterprise Directorate, Space and Missile Systems Center, Los Angeles Air Force Base, El Segundo, California, is the contracting activity (FA8811-19-C-0004). NAVY Marine Systems Corp., Boston, Massachusetts, is awarded a $29,111,774 indefinite-delivery/indefinite-quantity, cost-plus-fixed-fee, firm-fixed-price hybrid single award contract for engineering, logistical, and information technology services to support the Navy Habitability Projects. The contract will include a five-year base ordering period with a six-month ordering period option pursuant of Federal Acquisition Regulation 52.212-8 - option to extend services, which if exercised, will bring the total ceiling value to $32,191,928. Work will be performed in Norfolk, Virginia (84 percent); San Diego, California (5 percent); Pearl Harbor, Hawaii (5 percent); Mayport, Florida (2 percent); Washington, District of Columbia (1 percent); Bahrain (1 percent); Japan (1 percent); and Rota, Spain (1 percent). The base ordering period is expected to be completed by March 2024; if the option is exercised, the ordering period will be completed by August 2024. Fiscal 2019 operations and maintenance (Navy) funds in the amount of $25,000 will be obligated to fund the contract's minimum amount and funds will expire at the end of the current fiscal year. This contract was competitively procured with the solicitation posted to the Federal Business Opportunities and Navy Electronic Commerce Online websites, with five offers received. Naval Supply Systems Command Fleet Logistics Center Norfolk, Contracting Department Norfolk Office, Norfolk, Virginia, is the contracting activity (N0018919D0004). Vadum Inc.,* Raleigh, North Carolina, is awarded a $9,413,901 cost-plus-fixed-fee, level of effort, research and development contract with a five-year period of performance, to procure engineering support services. Technical instructions will be issued in accordance with the Statement of Work for this contract to support the Reactive Electronic Attack Measures project. Work will be performed in Raleigh, North Carolina, and will be completed by February 2024. Fiscal 2019 research, development, test and evaluation (Navy) funding in the amount of $1,000,000 will be obligated at time of award and will not expire at the end of the current fiscal year. This contract was not competitively procured in accordance with 10 U.S. Code 2304(c)(1) - only one responsible source and no other services will satisfy agency requirements. The Naval Surface Warfare Center, Crane Division, Crane, Indiana, is the contracting activity (N00164-19-C-WS30). Lockheed Martin, Rotary and Mission Systems, Moorestown, New Jersey, is awarded an $8,242,834 cost-plus-incentive-fee modification to previously awarded contract (N00024-15-C-5151) to exercise options for ship integration and test of the Aegis Weapon System (AWS) for AWS Baselines through Advanced Capability Build 16. Work will be performed in Camden, New Jersey (43 percent); Pascagoula, Mississippi (25 percent); Norfolk, Virginia (12 percent); Everett, Washington (10 percent); Virginia Beach, Virginia (6 percent); San Diego, California (3 percent); and Washington, District of Columbia (1 percent), and is expected to be completed by September 2024. Fiscal 2015 shipbuilding and conversion (Navy); and 2019 other procurement (Navy) funding in the amount of $8,242,834 will be obligated at the time of award. No contract funds will expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, District of Columbia, is the contracting activity. ARMY T&H Services LLC,* Juneau, Alaska, was awarded a $26,468,671 cost-plus-fixed-fee contract for base operations support services. Bids were solicited via the internet with six received. Work will be performed in Fort Carson, Colorado, with an estimated completion date of Feb. 18, 2020. Fiscal 2019 operations and maintenance Army funds in the amount of $5,019,250 were obligated at the time of the award. U.S. Army Mission and Installation Contracting Command, Fort Carson, Colorado, is the contracting activity (W911RZ-19-C-0002). Wood Environment & Infrastructure Solutions Inc., Blue Bell, Pennsylvania, was awarded a $12,000,000 firm-fixed-price contract for hazardous toxic and radiologic waste consulting services. Bids were solicited via the internet with four received. Work locations and funding will be determined with each order, with an estimated completion date of Feb. 19, 2024. U.S. Army Corps of Engineers, Concord, Massachusetts, is the contracting activity (W912WJ-19-D-0002). * Small business https://dod.defense.gov/News/Contracts/Contract-View/Article/1760766/

  • Air Force looks for help on new, hard-to-jam, satellite waveform

    18 octobre 2018 | International, Aérospatial, C4ISR

    Air Force looks for help on new, hard-to-jam, satellite waveform

    By: Adam Stone In the face of a rising near-peer threat to electronic communications, the Air Force is pressing forward with efforts to develop a new, more resilient, harder-to-jam waveform that soldiers could use on the battlefield. The service expects to receive responses from industry soon on a recent request for information around protected satellite communications. The request sought industry guidance on how best to implement a new, more resilient protected tactical waveform (PTW), which enables anti-jamming capabilities within protected tactical SATCOM. “The Air Force is looking to protect our warfighter's satellite communications against adversarial electronic jamming,” the Air Force's Space and Missile Systems Center (SMC) said in a written statement to C4ISRNet. The threat comes from “adversarial electronic jammers that are intended to disrupt and interfere with U.S. satellite communications,” leaders at SMC said. Protected tactical SATCOM is envisioned to provide worldwide, anti-jam communications to tactical warfighters in benign and contested environments. The quest to solidify satellite communication links has taken on increasing urgency in recent years. As satellite communications has emerged as an integral component in the military's command and control infrastructure, potential adversaries have stepped up their ability to disrupt such links. “Tactical satellite communications are vital to worldwide military operations,” the agency noted. “Our adversaries know this and desire to disrupt U.S. satellite communications. The Air Force is fielding Protected Tactical SATCOM capabilities to ... ensure warfighters around the globe have access to secure and reliable communications.” Industry is expected to play a key role in the development and deployment of any new waveform. Officials at SMC said that early prototyping efforts will be conducted through the Space Enterprise Consortium (SpEC), which is managed by Advanced Technology International. SpEC acts as a vehicle to facilitate federally-funded space-related prototype projects with an eye toward increasing flexibility, decreasing cost and shortening the development lifecycle. The organization claims 16 prototype awards to date, with some $26 million in funding awarded. Understanding the protected tactical waveform Government documents describe PTW as the centerpiece of the broader protected tactical SATCOM effort, noting that it provides “cost-effective, protected communications over both military and commercial satellites in multiple frequency bands as well as broader protection, more resiliency, more throughput and more efficient utilization of satellite bandwidth.” A flight test last year at Hansom Air Force Base suggested the emerging tool may soon be ready to deliver on such promises. While SMC leads the PTW effort, Hanscom is working in collaboration with MIT Lincoln Laboratory and the MITRE Corp. to conduct ground and airborne terminal work. Researchers from MIT's Lincoln Laboratory flew a Boeing 707 test aircraft for two and a half hours in order to use the waveform in flight. With a commercial satellite, officials gathered data on the PTW's ability to operate under realistic flight conditions. “We know this capability is something that would help our warfighters tremendously, as it will not only provide anti-jam communications, but also a low probability of detection and intercept,” Bill Lyons, Advanced Development program manager and PTW lead at Hanscom, said in an Air Force news release. The test scenario called for the waveform to perform in an aircraft-mounted terminal. Evaluators were looking to see whether its systems and algorithms would function as expected in a highly mobile environment. “Everything worked and we got the objectives accomplished successfully,” Ken Hetling, Advanced Satcom Systems and Operations associate group leader at Lincoln Laboratory, said in an Air Force press release. “The waveform worked.” Asking for industry input should help the service to chart its next steps in the development of more protections. While the request does not specify when or how the Air Force intends to move forward, it is clearly a matter not of whetherthe military will go down this road, but rather when and how. https://www.c4isrnet.com/c2-comms/satellites/2018/10/05/air-force-looks-for-help-on-new-hard-to-jam-satellite-waveform/

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