12 mars 2020 | International, Aérospatial

U.S. Military Exploring eVTOL Solution to Resupplying Troops

by Nick Zazulia

The U.S. military is stepping up its efforts to enlist autonomous eVTOL aircraft for a variety of missions, especially those that would reduce risk to troops, such as moving cargo in combat zones. In early January, the U.S. Air Force issued a request for information to civil eVTOL developers in a bid to evaluate options for investing in the technology. For 2020 alone, the Pentagon has allocated almost $170 million to investigate options for what it calls unmanned logistic system-air (ULS-A) capability.

In Iraq and Afghanistan, U.S. forces have faced difficulty moving supplies, according to Carmine Borrelli, deputy head for logistics innovation with the Marine Corps Warfighting Lab. Valuable military aircraft often need to be kept in reserve for higher-priority missions, and even when they are used, high sustainment costs make resupply an inefficient use for them.

“They [eVTOLs] have the potential to have a platform that could be cost-effective, that could go far distances and that could carry stuff, potentially, at a lesser cost than what we were doing,” said Borrelli in a press briefing hosted by the Vertical Flight Society on March 10.

The Marines are partnering with both the Army and the Air Force on different projects to realize that goal through what it calls small, medium, and large unmanned logistics systems. The Office of the Secretary of Defense is allocating approximately $120 million to the efforts of the Naval Air Systems Command (Navair) with small and medium ULS-A vehicles covered by the program objective memorandum (POM-19).

Another $30 million for medium-size ULS-A in combined stakeholder investment and funding from the Office of the Secretary of Defense is being put toward joint capabilities technical demonstrations that need to be completed before the POM funding can be put to use. And the fiscal year 2020 budget from Congress includes $18.5 million to advance autonomous technology, particularly in large aircraft.

There is more funding for the smaller ULS vehicles, because the use case is more clearly defined, and the work is further along. Instead of usual rigid requirements, the Marine Corps is now deliberately thinking about possible use cases in terms of range. Borrelli that this approach allows more flexibility in finding the best way to use the burgeoning eVTOL technology.

The Department of Defense (DoD) considers “small” ULS to be vehicles with a 60- to 150-pound payload, designed for trips within 10 or 15 miles and a daily throughput of about 1,000 pounds per aircraft. Borrelli said the Marines are finding that it's realistic for vehicles of that size to weigh as much as or less than the payload they're designed to carry.

The goal is to use them for squad resupply, leveraging highly automated routines to complete simple operations without requiring much manpower. Early operational capability is scheduled for 2023 with full operational capability on the docket for 2026.

A medium ULS carries 300- to 500 pounds anywhere from a 20 to 125-mile combat radius, allowing for carrying up to 5,000 pounds of cargo in a day. As with a small ULS, medium ULS can keep their weight efficient enough that payload about meets vehicle weight, though they will be used for more complicated missions, such as supplying platoons, operations between advanced bases, and more. “We're trying to anticipate the future; potentially that size range could also do casualty evacuation...if these things prove out and they are reliable enough,” Borrelli said.

The Marine Corps is working with the U.S. Army Research Laboratory on medium ULS efforts. At the end of January, Navair hosted a tactical resupply unmanned aircraft systems fly-off competition in Yuma, Arizona, won by Survice Engineering's TRV-150 system, which is based on the Malloy Aeronautics tactical resupply vehicle drone platform. Other competitors included Bell, Autonodyne, AirBuoyant, Pacific Aerospace Consulting, and Chartis Federal.

Borrelli said medium ULS are targeted to enter service during fiscal year 2024 or 2025, with full operational capability in 2030. The category just finished its first year of successful joint-capabilities technical demonstration flight tests as part of a three-year effort.

The large ULS category is still a bit more abstract. Initially, DoD conceived of vehicles with a 2,000- to 6,000-lb payload, in some ways a replacement for Bell Boeing V-22 Ospreys or Sikorsky CH-53 Sea Stallions on shorter trips. However, as the consumer market has defined and taken shape, the military realized that scaling back to vehicles with 1,000- to 2,000-lb payloads will make more sense.

“We want to seriously consider and match industry's approach,” Borrelli said. “If the market is moving toward the 1,000-pound platform—a "flying car"—and many [new eVTOL aircraft] are going to be out there, it would be in our best interest to figure out how best we can use that platform to do what we need to do. We look to ride the coattails of industry.”

The military is still interested in larger vehicles that can move up to 6,000 lb, but it recognizes that isn't where the bulk of innovation is taking place right now. In the large ULS category, the Marine Corps is working with the Air Force, whose Agility Prime program was started last year to leverage the commercial VTOL industry to find more efficient ways to execute resupply missions than through its high-sustainment-cost aircraft.

The military wants to use these larger ULS for company resupply in remote areas with austere landing zones and launched from a new class of small, minimally-manned ships, as well as potentially to transport troops. The vehicles would work in a radius of up to 350 miles, each handling throughputs ranging from 15,000 to 30,000 pounds per day. Early operational capability for large ULS is scheduled for 2023, with full operational capability in 2030. While the military has done less work on large ULS, it hopes to rely more on the investment of the commercial UAM industry.

For large ULS, Borrelli said the same weight efficiency won't be possible, so it will take a heavier vehicle to lift 2,000 pounds. Both hybrid and fully-electric propulsion is on the table and, in either case, new propulsion technology brings infrastructure questions with it.

“That's something that we have constantly in the back of our minds,” Borrelli said. “So, as we're moving to the rest of the ULS space, the ground and surface and sub-surface, we're considering where those charging stations could be or where a battery inventory would be. If we don't have a charging station, we have to have a battery inventory. It's not going to do us any good to have a considerable amount of inventory unless we can be able to charge efficiently.”

https://www.ainonline.com/aviation-news/defense/2020-03-12/us-military-exploring-evtol-solution-resupplying-troops

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  • Huge Deficit = Defense Budget Cuts? Maybe Not

    19 mai 2020 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité

    Huge Deficit = Defense Budget Cuts? Maybe Not

    The congressional calendar and strategic inertia may come together to keep the defense budget relatively high. The calendar helps because the fiscal 2021 defense budget will likely be passed while Congress is in a free-spending mood. By MARK CANCIAN The current Washington consensus sees deep defense budget cuts in the face of soaring deficits driven by the emergency legislation to stabilize the American economy as it reels from the effects of the COVID-19 pandemic. It may be wrong. The congressional calendar and strategic inertia may come together to keep the defense budget relatively high. The calendar helps because the fiscal 2021 defense budget will likely be passed while Congress is in a free-spending mood. The next administration — Republican or Democratic — will develop budgets beyond that, but the constraints of long-standing strategy will prevent major changes to force structure and acquisition that would drive deep budget cuts. The Challenge The conventional narrative holds that the defense budget will be squeezed as the debt level rises, and the public focuses inward on rebuilding the country's health and economic position. These are reasonable concerns. The deficit in fiscal 2020, initially projected to be about one trillion dollars ― itself getting into record territory without emergency spending― is now projected to be $3.7 trillion, and Congress is not finished spending. Debt held by the public will rise to 101 percent of GDP, a level not seen since World War II. Even if the world is willing to take US debt, rising interest payments will squeeze the rest of the budget. Simultaneously, the electorate is likely to focus inward. The pandemic is already the leading popular concern, not surprisingly. The economic devastation caused by restrictions on normal commercial activities has produced the greatest downturn since the Great Depression. It would be reasonable to put these factors together and project a substantially reduced defense budget. However, the congressional calendar and the inertia of a long-held strategy will likely mitigate any downturn. The Calendar The calendar will help because Congress is likely to pass the 2021 appropriation this fall, when the government will still be operating under emergency conditions. Congress has already passed four bills for pandemic response and economic stimulus and is developing another in the multi-trillion range. There are a few voices for fiscal constraint, but they are overwhelmed by a sentiment to “do more.” Indeed, some lawmakers and commentators are proposing increases to the defense budget to stimulate the economy, enhance deterrence of China, or protect the defense industrial base. Adam Smith, chairman of the House Armed Services Committee, has indicated his reluctance to do more than protect the industrial base, but a future stimulus bill could include such enhancements as part of a bipartisan deal. Finally, last year's bipartisan budget agreement set levels for defense and domestic spending in fiscal 2021. Undoing that agreement would be a major lift, requiring a bipartisan consensus that does not seem to be occurring. Even if the Democratic left wanted to make such cuts, defense hawks in the House and Senate could block them. Thus, in the near-term proposals for enhancements seem to be offsetting thoughts about cuts. As both the House and Senate consider their authorization acts, they seem to be aiming at roughly the level of the president's proposal and the bipartisan budget agreement. Strategic Inertia The United States has had some variation of the same national security strategy since the end of the Second World War (or perhaps more accurately, since the Korean War and publication of NSC 68, which enshrined a long term competition with the Soviet Union). That strategy involves global engagement, forward-deployed forces, alliances to offset global competitors, and commitment to maintaining an international system of free trade, human rights and secure borders. Scholars can argue about the details and how well the United States has implemented such a strategy, but the major elements have been constant. President Trump has chafed at many of these elements but has generally gone along, however reluctantly. One would expect such reluctant continuity in a second Trump administration, should that occur One would also expect strategic continuity in a Biden administration. Biden was, after all, vice president during the Obama administration, which, after the shocks of 2014, laid out a strategy of confronting five threats: Russia, China, North Korea, Iran, and terrorism. One would expect Biden to implement something like that strategy if he were in office. That does not mean that a Biden administration would do everything a Trump administration would do. The left-wing of the Democratic party would push some level of cuts, perhaps 5 percent, and take aim particularly at nuclear modernization, foreign arms sales, and Middle East conflicts. But this longstanding strategy of global engagement will put a floor on defense cuts. Remaining engaged with NATO, supporting our Asian allies like Japan and South Korea, and maintaining some presence in the Middle East, even if scaled back, takes a lot of forces. These need to be at a relatively high level of readiness to deploy globally and be credible. The all-volunteer force needs to maintain compensation and benefits at a sufficient level to compete for labor in a market economy. Competing with China and Russia requires investment in a wide variety of high technology―and costly―new systems, as well as the R&D foundation to support these innovations. Other strategies are certainly possible. Members of the Democratic left and Republican right, as well as some elements of the academic and think tank community, have proposed strategies of “restraint”, whereby the United States would significantly scale back overseas engagements. Such strategic change would produce a substantial cut in the defense budget. However, neither major candidate has supported such a change, and the national security policy community (aka “the blob”) is adamantly opposed. Despite this relatively optimistic assessment, the future is still cloudy. The president's budget proposal forecasts a level budget in constant dollars. That meant that the defense buildup was over, even if Republicans continued in office. Such budgets do not come close to the 3 to 5 percent real growth that defense officials had talked about to implement the National Defense strategy and would entail choices between readiness, force structure and modernization. A Democratic administration, with a notional 5 percent cut in the defense budget, would not constitute the deep cut that a Sanders or Warren administration might have entailed, but the $35 billion that a 5 percent cut would entail is still a lot of money. Forces would get smaller, likely wiping out all the recent force expansion, and new programs would be delayed. Bottom line: Defense may not be heading into a budget hurricane, but it is not heading into sunlight either. It faces the friction that occurs when expensive plans collide with constrained resources. Mark Cancian, a member of the Breaking Defense Board of Contributors, was a Marine colonel and senior official at the Office of Management and Budget before he joined CSIS. https://breakingdefense.com/2020/05/huge-deficit-defense-budget-cuts-maybe-not/

  • Contract Awards by US Department of Defense - January 11, 2019

    14 janvier 2019 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité

    Contract Awards by US Department of Defense - January 11, 2019

    NAVY Microsoft Corp., Redmond, Washington, is awarded an estimated $1,760,000,000 value single-award, firm-fixed-price, indefinite-delivery/indefinite-quantity contract for Microsoft Enterprise Services for the Department of Defense (DoD), Coast Guard, and intelligence community. Support includes Microsoft product engineering services for software developers and product teams to leverage a range of proprietary resources and source-code, and Microsoft premier support for tools, knowledge database, problem resolution assistance, and custom changes to Microsoft source-code when applicable. This contract is issued under the DoD Enterprise Software Initiative (ESI) in accordance with the Defense Federal Acquisition Regulation Supplement, Section 208.74. DoD ESI is an initiative to streamline the acquisition process and provide information technology products and services worldwide that are compliant with applicable DoD technical standards and represent the best value for the DoD. The work will be performed worldwide. The ordering period will be for five years with a completion date of Jan. 10, 2024. This contract will not obligate funds at the time of award. Funds will be obligated on individual task orders using primarily operations and maintenance funds (DoD). This sole-source procurement is issued using other than full and open competition in accordance with Federal Acquisition Regulation Subpart 6.302-1 and 10 U.S. Code 2304(c)(1) - only one responsible source. The Space and Naval Warfare Systems Center Pacific, San Diego, California, is the contracting activity (N66001-19-D-0019). Raytheon Co., Marlborough, Massachusetts, is being awarded $9,347,391 for cost-plus-fixed-fee, firm-fixed-price order N6339419F0002 under a previously awarded basic ordering agreement (N6339417G5103) for engineering services in support of the Aegis SPY-1 radar and Mk 99 fire control system. This order will provide technical, logistical and engineering services from the original equipment manufacturer. This contract includes options which, if exercised, would bring the cumulative value of this order to $19,497,003. Work will be performed in Yorktown, Virginia (90 percent); and at various ship locations (10 percent), and is expected to be completed by January 2021. Fiscal 2018 other procurement (Navy) funding in the amount of $960,282 will be obligated at time of award and will not expire at the end of the current fiscal year. The Naval Surface Warfare Center, Port Hueneme Division, Port Hueneme, California, is the contracting activity. DEFENSE LOGISTICS AGENCY GE Medical Systems Information Technologies Inc., Wauwatosa, Wisconsin, has been awarded a maximum $450,000,000 firm‐fixed‐price, indefinite‐delivery/indefinite‐quantity contract for patient monitoring systems, accessories and training. This was a competitive acquisition with 36 responses received. This is a five-year base contract with one five‐year option period. Location of performance is Wisconsin, with a Jan. 10, 2024, performance completion date. Using customers are Army, Navy, Air Force, Marine Corps, and federal civilian agencies. Type of appropriation is fiscal 2019 through 2024 defense working capital funds. The contracting activity is the Defense Logistics Agency Troop Support, Philadelphia, Pennsylvania (SPE2D1‐19‐D‐0010). Transaero Inc.,* Melville, New York, has been awarded a maximum $23,237,500 firm-fixed price, indefinite-delivery/indefinite-quantity contract for fixed landing gear. This was a competitive small business set-aside acquisition with four offers received. This is a five-year contract with no options periods. Location of performance is New York, with a Jan. 10, 2024, performance completion date. Using military service is Army. Type of appropriation is fiscal 2019 through 2024 Army working capital funds. The contracting activity is Defense Logistics Agency Aviation, Redstone Arsenal, Alabama (SPRRA1-19-D-0043). AIR FORCE Lockheed Martin Aeronautics, Marietta, Georgia, has been awarded a $131,604,450 contract for C‐5 sustainment. This contract provides for sustaining engineering services. Work will be performed in Fort Worth, Texas; Marietta, Georgia; and Palmdale, California, and is expected to be completed Jan. 25, 2019. This award is the result of a sole-source acquisition. A combination of fiscal 2019 transportation working capital funds; and operations and maintenance funds in the amount of $23,543,771 are being obligated at the time of award. Air Force Life Cycle Management Center, Robins Air Force Base, Georgia, is the contracting activity (FA8525‐19‐D‐0001). MISSILE DEFENSE AGENCY Raytheon Co. (Raytheon) Space and Airborne Systems (SAS), San Diego, California, is being awarded a single award with a contract ceiling of $9,607,811 for an indefinite-delivery/indefinite-quantity contract for Multi-Spectral Targeting System (MTS) sensor support. Raytheon will provide subject matter expertise as a member of a government-led sensor development and demonstration team and will provide research, development, fielding and test support, operations, maintenance, and as-needed repairs on the government-owned MTS-class sensors. Raytheon is the sole designer, developer, and manufacturer of the MTS-class sensor. Work will be performed at El Segundo and San Diego, California. The ordering period and the period of performance is five years from the date of award. The first task order will be awarded at the same time the basic contract is awarded. Fiscal 2018 research, development, test and evaluation funds in the amount of $1,299,520 for the first task order is being obligated at time of award. The award to Raytheon SAS is the result of a proposal submitted in response to a sole-source solicitation (HQ0147-18-R-0013) one offer was received. The Missile Defense Agency, Redstone Arsenal, Alabama, is the contracting activity. (HQ0147-19-D-0013). DEFENSE HEALTH AGENCY CACI NSS Inc., Chantilly, Virginia, was competitively awarded a firm-fixed-price contract for $8,582,382 on Jan. 11, 2019. Contract has an effective date of Jan. 29, 2019. This award provides for non-personal Information Technology services in support of the legacy Theater Enterprise-Wide Logistics System (TEWLS) application to be known in the future as the systems, applications and products in the LogiCole application. The award will provide for pre-planned product improvement, life cycle management, and business process, and technical integration support and reengineering services for TEWLS. The contractor will provide software maintenance services to support Joint Medical Logistics Functional Development center in the configuration, technical sustainment and continued enhancement of the TEWLS as part of the Defense Medical Logistics – Enterprise Solution. The contractor place of support is Ft. Detrick, Maryland. This contract has an additional four option periods, if exercised. This contract is an acquisition under General Service Administration's IT schedule 70 with fiscal 2019 operations and maintenance funds in the amount of $8,582,382 obligated at time of award. The Defense Health Agency, Contract Operations – Health Information Technology,San Antonio, Texas, is the contracting activity (HT0015-19-F-0018). *Small business https://dod.defense.gov/News/Contracts/Contract-View/Article/1730557/source/GovDelivery/

  • Three Generations Of Fighters Compete For Limited Resources

    10 décembre 2020 | International, Aérospatial

    Three Generations Of Fighters Compete For Limited Resources

    Steve Trimble December 10, 2020 Fateful decisions loom in the next 12 months for a global fighter market caught up in a pivotal debate over how much to invest in each of three generations of aircraft designs now in production or development. As next-generation fighters continue to take shape on industry drawing boards—and in one case, a secret flying demonstrator—a final decision in 2021 over whether to buy another batch of aircraft with a Cold War legacy or Lockheed Martin's 20-year-old-design F-35A stealth fighter confronts Canada, Finland, Israel, Switzerland and, perhaps most surprisingly, the U.S. Internal U.S. Air Force fighter road map capped the F-35 at 1,050 Canada, Finland and Switzerland contract awards expected in 2021 With 13 purpose-built fighter types now in production globally for export customers (excluding about half as many modified training jets), military buyers are spoiled with competitive options and motivated sellers. But a series of contract awards planned for the next 12 months could induce a long-awaited reckoning, especially among production lines for fighters produced in Europe and the U.S. Multiple decisions in favor of so-called fifth-generation capabilities could nearly complete the F-35's dominance over European and American fighter demand for the next decade. Alternatively, if the balance of new contracts falls to fourth-generation rivals, the F-35 is likely to continue to face intense competition from the same aircraft it was designed to replace. For now, pressure from F-35 competitors is surging, including from within the type's biggest customer. The U.S. Air Force's program of record for the F-35A stands at 1,763 total aircraft, a figure that has not budged in nearly two decades, despite changes to the assumptions that determined the original number. The pressure on the Air Force's orderbook for F-35As has been building for at least six years. Speaking on condition of anonymity in November 2014, a senior Air Force official said the service internally was considering a purchase of 72 new Boeing F-15s, Lockheed Martin F-16s or even the Navy's Boeing F/A-18E/Fs. Hindsight suggests the disclosure may have been intended as a negotiating ploy with Lockheed over F-35 prices, but the idea clearly never died. Indeed, the Air Force signed an order in July 2020 for the first eight of “at least” 144 Boeing F-15EXs, replacing an aging fleet of F-15C/Ds. By 2018, those F-15C/Ds already had outlived their original service-life estimates as victims of the Defense Department's decision in 2010 to truncate production of the Lockheed F-22 after 185 deliveries. With only a longeron replacement necessary to maintain structural integrity, the Air Force still was planning to keep the F-15 C/D fleet in service for at least another decade until a next-generation fighter became available. But then the Air Force discovered another major structural flaw: The entire fleet required new wing skins to remain airworthy. Rather than invest in a major structural refit, the Air Force announced plans in 2019 to retire the fleet. But the manner of the F-15C/D replacement plan came as a shock. Breaking from a two-decade-old strategy to buy only stealthy fighters, the Air Force decided to bypass the F-35A and order F-15EXs instead. With cockpit, flight-control and wing upgrades mostly funded by Qatar and Saudi Arabia, the Air Force developed a new, long-term role for a fourth-generation fighter. Such a role already had been envisioned behind closed doors by a new organization on the Air Staff. Created in January 2018 as an internal think tank, the Air Force Warfighting Integrating Capability (AFWIC) office had torn up the long-standing assumption that only stealthy fighters could perform a useful role. By the end of 2018, the AFWIC's team of analysts had adopted a new fighter road map, according to a source. The road map envisioned a “great power” war. The principal role for each F-35A was to launch two stealthy cruise missiles—Lockheed AGM-158 Joint Air-to-Surface Standoff Missiles (JASSM)—from just inside defended airspace. That “kick-down-the-door” pairing would be combined with mass launches of multiple JASSMs each from F-15Es and F-15EXs, the source said. Other missions—namely, defensive counter-air and homeland defense—could be performed by the F-35. But other aircraft such as F-15EXs and F-16s also could be used. Driven by this new appreciation for a portfolio of fighter capabilities, the AFWIC team also reconsidered how many of each type would be needed. No fighter program escaped scrutiny, including the long-standing Air Force commitment to acquire 1,763 F-35As. AFWIC's fighter road map by the end of 2018 had capped F-35A deliveries at about 1,050 jets, the source said. Although that cap implies a 40% cut to the original plan for the F-35A, no change to the program of record was necessary, the source said. The Air Force has ordered 451 F-35As so far, according to the Aviation Week Network Military Fleet database. If new aircraft orders are maintained at a rate of 2-2.5 squadrons a year—48-60 jets—for the foreseeable future, the Air Force is at least 10 years away from hitting the 1,050 cap in AFWIC's fighter road map. In the meantime, the Air Force faces other decisions about whether to invest in more fourth-generation fighters, F-35As or next-generation aircraft. The Air Force still operates 232 Block 25 and Block 30 F-16C/D jets, which were delivered in the mid-1980s, according to the Military Fleet database. Air Force officials have said they expect to make a fleet replacement decision for these so-called “pre-block” F-16s in 4-7 years. When the Air Force established the program of record for buying 1,763 F-35As, the plan assumed replacing all of those pre-block F-16s. As a replacement decision enters the Pentagon's five-year budgeting horizon, however, Air Force officials have been more flexible. Last February, the head of Air Combat Command, who was then Gen. Mike Holmes, said low-cost, attritable aircraft would be considered for the pre-block F-16 replacement in the 2024-27 time frame. The fighter road map completed by AFWIC in 2018 considered the F-16 Block 70/72 and a potential fighter version of the Boeing T-7 as candidates for light-fighter sales to foreign militaries, the source said. “The trade space in the fighter road map is real, and the trade space is a combination of payload, range, speed and survivability,” the source said. “And I don't need all of one thing. I need a portfolio of things.” Over the past decade, the same debate has raged within the air forces of other countries, particularly for those that cannot afford to operate more than one type of fighter. The F-35 has fared well in those decisions. Among countries that have been offered the F-35, only Germany has rejected the stealth-fighter option so far. That record will be put to the test next year against a backdrop of national economic pressures imposed by the costs of the COVID-19 pandemic. Switzerland, Finland and Canada are evaluating proposals. A year-long political crisis in Israel delayed plans to order either F-15EXs or more F-35As, or both. A resolution to the country's presidential election was not reached until after the COVID-19 pandemic arrived in Israel, to consume the attention of decision-makers. In other countries with a fighter aircraft-design capability, the debate over spending on tactical aviation includes a third dimension. Following several years of study and analysis, the next generation of designs is beginning to assume a tangible form. This is especially true in the U.S. defense industry. In a startling, mid-September announcement, Will Roper—assistant secretary of the Air Force for acquisition, technology and logistics—declared the service had developed, built and flown a flight demonstrator for the Next-Generation Air Dominance (NGAD) program. Roper's announcement was light on details, including the time frame of the flight, details of the aircraft design and the status of the program now. But the concept of the need for an NGAD flight demonstrator was suggested in September 2019 by Gen. David Goldfein, who was then chief of staff of the Air Force. Several months before, the Air Force released a five-year budget plan that included a $6.6 billion funding cut for the NGAD program, a roughly 50% reduction compared to spending levels over the same period from only a year before. The spending cut made it unclear what had become of a notional concept popularized in 2015 and 2016 by U.S. defense contractors of a “sixth-generation fighter,” featuring a supersonic aircraft design lacking vertical tails and carrying advanced weapons such as an embedded high-energy laser for shooting down incoming missiles. Instead, the Air Force's leaner spending plan for the NGAD in 2019 supported a different concept for a next-generation fighter. Rather than a standalone aircraft that could, much like the F-35 and F-22 design requirement, prosecute a mission by itself with a diverse array of sensors to detect and identify targets in the air or on the ground in any weather, along with all of the munitions necessary to destroy those targets, the Air Force increasingly has emphasized adopting a family of systems to “close the kill chain.” The sensing and munition capabilities would be distributed among multiple aircraft that often must collaborate to complete a mission. At the same time, the Air Force is investing in several new technologies related to air dominance. A Next-Generation Adaptive Propulsion program aims to deliver an advanced new turbofan engine in fiscal 2025, with GE Aviation and Pratt & Whitney developing rival designs. A new family of unmanned aircraft systems designed to augment or operate independently of crewed fighters is being developed under the Air Force Research Laboratory's Skyborg program. In his remarks in September 2019, Goldfein said the NGAD program now is focused on maturing five different technologies that the Air Force does not intend will come together on a single platform. A prototype aircraft, he said, was necessary to demonstrate those technologies in flight. In Europe, progress is being made toward a next-generation fighter. By August 2021, France, Germany and Spain expect to conclude Phase 1A of the Future Combat Air System (FCAS) demonstrator program, with the goal of defining a wide range of technologies that will be carried into a flight demonstration scheduled to begin under Phase 1B at the end of 2026. A collaboration among the UK, Sweden and Italy under the Team Tempest consortium will enter 2021 with renewed support. A long-awaited defense review in London finally was published in November showing support for the Future Combat Air System Technology Initiative under a £1.5 billion ($2 billion) fund for military research over the next four years. Tens of billions more will be needed to complete development of the NGAD, FCAS and Tempest over the next two decades, even as Western governments continue to split modernization investments among three fourth-generation fighters—the Dassault Rafale, Eurofighter and Saab JAS 39E/F Gripen—and the F-35. Maintaining the right balance of spending in each category will consume the debate over fighter aircraft decisions on the horizon. https://aviationweek.com/aerospace-defense-2021/defense-space/three-generations-fighters-compete-limited-resources

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