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July 17, 2020 | International, Aerospace

Lockheed’s IRST Stealth Detection Pod Passes AF Milestones

"The Legion Pod uses an advanced IRST technology that gives 4th generation fighters the ability to 'see' stealth aircraft that traditional radar cannot," says an Air Combat Command spokesperson.

By on July 16, 2020 at 3:37 PM

WASHINGTON: The Air Force is a step closer to fielding the Legion Pod infra-red search and track (IRST) system on its F-15 and F-16 fleets — a passive sensor that gives pilots a long-range ability to track stealthy aircraft without giving away their own presence.

The Lockheed Martin-built IRST system just passed two major testing milestones: the first shot of an AIM-9X air-to-air missile from an F-15C Eagle using the Legion Pod for targeting; and the first flight of an operational F-16 Fighting Falcon with the Legion Pod, Air Combat Command announced Tuesday in a press release.

“This is exceptionally important, as the Legion Pod uses an advanced IRST technology that gives 4th generation fighters the ability to ‘see' stealth aircraft that traditional radar cannot,” an Air Combat Command spokesperson says in an email.

Because it uses infrared to track an airplane's heat signature, the system isn't affected by radar jamming. Further, IRST systems are passive, meaning the Legion Pod can act without emitting any radiation of its own that might allow an enemy to recognize they are being targeted.

The Air Force is driving toward initial operational capability (IOC) for the Legion Pod by the end of the year, under a rapid testing program managed by the Operational Flight Program Combined Test Force (OFP CTF). The unit is unique in that it reports both to Air Combat Command and Air Materiel Command, and is empowered to do developmental and operational testing at the same time — unlike traditional sequential testing programs.

“The OFP CTF's work on the Legion Pod is done differently than the traditional acquisitions method,” Lt. Col. Thomas Moser, the unit's commander, says in the press release. “We actually started testing the pod in a Pre-Developmental Test (DT) phase in early 2019 and got it to an eighty percent solution before it ever entered the official developmental phase. This ultimately allowed us to go through the developmental and operational testing quicker. What would normally take several years has been reduced to eighteen months from the start of DT to expected fielding.”

The Air Force selected the Legion Pod to equip the F-15C fleet in 2017; and Lockheed Martin received a contract for the system from prime contractor Boeing in 2018 for development and low-rate initial production of 19 pods.

“Currently, we are under contract for 38 LRIP systems,” Lockheed Martin spokesperson Dana Edwards Szigeti tells Breaking D in an email. “The next generation Block II systems are also under development with the U.S. Navy and we look to transition that to Legion Pod for the U.S. AF and Air National Guard over the next few years. Block II significantly increases system performance.”

The new F-15EX jets also will be compatible with the pod, according to Boeing's program manager Prat Kumar — although there isn't a formal contract yet.

The system is based on Lockheed Martin's IRST21 sensor, also being used by the Navy in its Block III F/A-18E/F Super Hornet fleet.

In addition, Lockheed in May received an indefinite delivery/indefinite quantity (ID/IQ) contract, worth up to $485 million, that will allow the US military services and allies to buy the IRT21 sensor, as well as other sensor products such as the Sniper Advanced Targeting Pod and the LANTIRN Extended Range pod, for five years at pre-set price points. That contract vehicle will allow the Air Force to equip the F-16 fleet with the Legion Pod, Edwards Szigeti said.

https://breakingdefense.com/2020/07/lockheeds-irst-stealth-detection-pod-passes-af-milestones/

On the same subject

  • US Army floats the option of fielding high-altitude balloons

    November 10, 2020 | International, Aerospace

    US Army floats the option of fielding high-altitude balloons

    By: Jen Judson WASHINGTON — The U.S. Army is now carving out a path to field high-altitude balloons to provide an additional but less expensive layer of communications, connectivity, range extension and surveillance capabilities, adding resiliency to the service's existing architecture of space assets and aircraft supporting multidomain operations. Recent tests and experiments with high-altitude balloons at White Sands Missile Range, New Mexico, left an impression on the head of the Army's Space and Missile Defense Command. “It's just phenomenal what we're able to do with high-altitude balloons,” Lt. Gen. Daniel Karbler told Defense News in an interview ahead of the Association of the U.S. Army's annual conference, which took place virtually Oct. 13-16. “I don't have the cost analysis but, in my mind, pennies on the dollar with respect to doing it. If I had to do it via a [low-Earth orbit] or some satellite constellation, what we are able to provide with high-altitude balloons, it's tactically responsive support to the war fighter,” he added. Karbler said he sees the balloons supporting the Army's Multidomain Task Force in the future. “Conceptually, with the types of missions that the Multidomain Task Force is working, the high-altitude balloons would be a key capability enabler,” Brent Fraser, concept development division chief at SMDC's Space and Missile Defense Center of Excellence, told Defense News in an Oct. 29 interview. “[The balloons would] be able to provide some beyond-line-of-sight capability, whether it's communications, extended distances, to be able to provide the ability to enable sensing of targets deep in the adversary's areas, to be able to reinforce and complement existing sensing systems other than the aerial layer as well as the space layer,” Fraser added. In terms of war games and experiments conducted with high-altitude balloons, “as we look at a number of emerging concepts and capabilities and formations,” he explained, “I think we still have a ways to go, but I think we're on a positive path to continue.” SMDC has been working on high-altitude balloons — basically dirigibles that can camp out roughly 60,000-90,000 feet in the air — for a long time, but recently the technology has improved, particularly through the commercial market. Google, for instance, used high-altitude balloons to help Puerto Rico after Hurricane Maria to help establish internet connectivity. Duration is one of the areas that has greatly improved. High-altitude balloons can now stay aloft for weeks, if not months, rather than just hours or days. Users can also command and navigate the balloons better than before, and the platforms can more easily be recovered after missions. “The technology readiness levels have really come a long way,” Fraser said. SMDC has partnered with Army Futures Command to advance the technology, particularly involving the latter's Assured-Positioning, Navigation and Timing cross-functional Team as well as Training and Doctrine Command, the Army Intelligence Center, and cyber and special operations personnel. Several years ago, the Army developed a high-altitude concept that established a foundation on which to build, Col. Tim Dalton, Army capability manager for space and high altitude within the SMDC's center of excellence, said in the same interview. After integrating the concept into a variety of war games with Futures Command and other entities, the Army is starting to develop requirements. “We're in the initial stages of defining what those requirements would be,” Dalton said. “There's kind of two aspects to the high-altitude piece: the high-altitude platform, so it's the balloon, and then whatever it's carrying on there for a payload.” The Army has created initial documents for staffing through Futures Command, and over the next couple of years the service will run those requirements through the Joint Capabilities and Integration and Development System process, which will lead to review by the Army Requirements Oversight Council. The service is in the early stages of figuring out what a program of record would look like, but it has some options, Dalton said. “What we're kind of hoping to do over the next couple of years as part of our campaign of learning is to help define what that looks like and the best way to resource those requirements for the Army.” https://www.defensenews.com/digital-show-dailies/ausa/2020/11/09/us-army-floats-the-option-of-fielding-high-altitude-balloons/

  • Coronavirus drives AFA’s massive Air, Space and Cyber conference online

    July 8, 2020 | International, Aerospace

    Coronavirus drives AFA’s massive Air, Space and Cyber conference online

    Stephen Losey The Air Force Association announced Monday that it will hold its massive Air, Space and Cyber conference virtually this September, due to the coronavirus pandemic. AFA's annual conference typically draws about 12,000 airmen, civilians, contractors and other attendees to National Harbor, Maryland, and features addresses from major Air Force, Defense Department and industry figures. For the first time this year, the virtual conference will feature a combination of live and on-demand conference sessions streamed online, beginning Sept. 14 and lasting at least three days. The events will include live addresses from senior leaders, and will allow viewers to ask questions and engage in other “unique opportunities ... with Air Force, Space Force and industry leadership,” AFA said. There will also be a virtual exhibit hall to display developments and demonstrations from industry, online meetings and interactive presentations, AFA said. Retired Lt. Gen. Bruce Wright, the president of AFA, said the decision to move the conference online was “extremely arduous.” But with the pandemic still ongoing, he said, it would not be possible to safely host a conference in-person of the quality the association desired. AFA considered Centers for Disease Control and Prevention guidelines, state and county directives, and feedback from potential speakers, attendees, sponsors and exhibitors. “Our goal is to continue AFA's long tradition of hosting the premier event for defense and aerospace professionals around the world,” Wright said in the release. “Our virtual Air, Space and Cyber conference will offer the same exceptional line-up of speakers, world-class exhibits, professional development opportunities, and networking opportunities for industry, government, media, academia and the public.” Air Force leaders often use their addresses to the AFA conference to make major announcements, such as former Secretary Heather Wilson's 2018 “Air Force We Need” address laying out a plan for a major expansion of the service's operational squadrons. Past speakers and guests at AFA's conference have included the top leaders of the Air Force, defense secretaries such as Jim Mattis, and Tuskegee Airman Charles McGee, who last year helped unveil the name of the T-7A Red Hawk. Staff Sgt. Spencer Stone, the airman who charged a knife-wielding terrorist on a train in France in 2015, also was celebrated at the conference that year, when the Air Force announced he would be promoted two grades for his heroism. https://www.airforcetimes.com/news/your-air-force/2020/07/06/coronavirus-drives-afa-s-massive-air-space-and-cyber-conference-online/

  • The US Navy is seeking upgrades for the F-35 radar’s sea-search mode

    June 12, 2019 | International, Aerospace, Naval

    The US Navy is seeking upgrades for the F-35 radar’s sea-search mode

    By: David B. Larter and Valerie Insinna WASHINGTON — The U.S. Navy wants more from the F-35 jet's radar, which in sea-search mode is limited to what is directly in front of the aircraft, according to documents exclusively obtained by Defense News. According to the documents, the radar, Northrop Grumman's AN/APG-81 active electronically scanned array radar, can either hone in on a sector based on a specific point on the ground, or work in what is commonly known as “snowplow mode,” which, as the name suggests, searches everything in front of the aircraft. The Navy wants to be able to scan a wider area when in sea-search mode, something that the radar is currently not set up for, according to officials who spoke to Defense News. Officials also said the problem is on track for a solution, but may not be implemented until as late as 2024 with the Block 4 upgrades, notably adding that a solution will not be in place before a full-rate production decision on the F-35 this year. Ultimately, giving the Navy what it wants will be a matter of boosting computing power and upgrading software, officials explained. The issue is listed as a category 1 deficiency, according to the documents, which further define the limitation as something that means “adequate performance [is] not attainable to accomplish the primary or alternate mission(s).” The issue dates back to 2012, according to the documents. In this scale, category 1 represents the most serious type of deficiency. It's unclear why the issue is listed as a deficiency. The system is working in accordance with design specifications, according to both the documents and a statement from a Lockheed Martin executive. “The F-35's current radar sea search function meets the enterprises' expressed required specification," said Greg Ulmer, Lockheed Martin's general manager of the company's F-35 program. “As we modernize the F-35, we are bringing enhanced search capabilities, which represent an increase from the original requirements, and we stand ready to integrate the upgrade in the future, based on customer priorities and direction.” In an interview with Defense News, the head of the Pentagon's F-35 program office, Vice Adm. Mat Winter, said the issue was being resolved by software and computing upgrades, and there would be no requirement for a new radar. “We're not mechanically scanning, we're electronically scanning,” Winter said. “And being able to accurately scan the maritime environment, it just takes increased computing power, and that's what we're doing. ... It's a software fix, and then an allocation of computing power.” Winter may be referring to a planned bundle of computer upgrades called Tech Refresh 3, where the jet will get more modern computing systems that will increase the jet's processing power and memory. According to one document obtained by Defense News, TR3 is a prerequisite for a future radar fix. Those TR3-equipped jets won't roll off the production line until 2023. Defense News submitted written questions to the Defense Department's F-35 program office concerning these and other deficiencies, but it did not respond by press time, despite multiple follow-ups over a period of months. A retired fighter pilot, who reviewed the documents for Defense News and agreed to speak on condition of anonymity, agreed with Winter's assessment that the fix was likely software-based. Early on in the F/A-18's APG-79 AESA radar, there were glitches in the operation, but software updates smoothed out the system. Fixing the APG-81 should follow a similar track as the aircraft progresses, the pilot explained. “As long as the array itself is technically sound, I suspect over time they'll be able to find ways to continue to build out capability through software updates,” the retired fighter pilot said. https://www.defensenews.com/smr/hidden-troubles-f35/2019/06/12/the-us-navy-is-seeking-upgrades-for-the-f-35-radars-sea-search-mode/

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