19 septembre 2024 | International, Aérospatial

Air Force to deploy Ospreys in weeks as post-crash groundings lift

The military grounded Ospreys after a fatal crash in November 2023, and Air Force Special Operations Command is gradually returning them to the air.

https://www.defensenews.com/air/2024/09/19/air-force-to-deploy-ospreys-in-weeks-as-post-crash-groundings-lift/

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  • Lockheed Martin-Built AEHF-5 Protected Communications Satellite Now in Transfer Orbit

    8 août 2019 | International, Aérospatial

    Lockheed Martin-Built AEHF-5 Protected Communications Satellite Now in Transfer Orbit

    The Lockheed Martin (NYSE:LMT)-built AEHF-5 satellite is now responding to the squadron's commands as planned. The squadron began "flying" the satellite shortly after it separated from its United Launch Alliance Atlas V 551 rocket approximately 5 hours and 40 minutes after the rocket's successful 6:13 a.m. ET liftoff. AEHF-5 complete a geostationary ring of five satellites delivering global coverage for survivable, highly secure and protected communications for strategic command and tactical warfighters operating on ground, sea and air platforms. Besides U.S. forces, AEHF also serves international partners including Canada, the Netherlands and the United Kingdom. "This fifth satellite adds an additional layer of flexibility for critical strategic and tactical protected communications serving the warfighter. This added resilience to the existing constellation will help ensure warfighters can connect globally to communicate and transmit data at all times," said Mike Cacheiro, vice president for Protected Communications at Lockheed Martin Space. "In the weeks ahead, AEHF-5 will move towards its operational orbit, deploy all of its solar arrays and antennas, and turn on its powerful communications payload for a rigorous testing phase prior to hand over to the Air Force." AEHF-5, with its advanced Extended Data Rate (XDR) waveform technology, adds to the constellation's high-bandwidth network. One AEHF satellite provides greater total capacity than the entire legacy five-satellite Milstar communications constellation. "Individual data rates increase five-fold compared to Milstar, permitting transmission of tactical military communications, such as real-time video, battlefield maps and targeting data," said Cacheiro. "AEHF affords national leaders anti-jam, always-on connectivity during all levels of conflict and enables both strategic and tactical users to communicate globally across a high-speed network that delivers protected communications in any environment." Lockheed Martin designed, processed and manufactured all five on-orbit AEHF satellites at its advanced satellite manufacturing facility in Sunnyvale, California. The next AEHF satellite, AEHF-6, is currently in full production in Silicon Valley and is expected to launch in 2020. The AEHF team includes the U.S. Air Force Military Satellite Communications Systems Directorate at the Space and Missile Systems Center, Los Angeles Air Force Base, Calif. Lockheed Martin Space, Sunnyvale, Calif., is the AEHF prime contractor, space and ground segments provider as well as system integrator, with Northrop Grumman Aerospace Systems, Redondo Beach, Calif., as the payload provider. For additional information, visit our website: http://www.lockheedmartin.com/aehf

  • An aerospace startup just won a contract to develop an Air Force One jet that can travel at Mach 5. Here's an early look at the engine that could rocket from New York to Paris in 90 minutes.

    7 août 2020 | International, Aérospatial

    An aerospace startup just won a contract to develop an Air Force One jet that can travel at Mach 5. Here's an early look at the engine that could rocket from New York to Paris in 90 minutes.

    David Slotnick 19 hours ago The Air Force One of the future might be getting a major speed boost. An aerospace company called Hermeus on Thursday announced a contract with the US Air Force and the Presidential and Executive Airlift Directorate to develop a hypersonic aircraft for the presidential fleet. While the next Air Force One, a modified 747-8, is due to be delivered by Boeing next year, the Hermeus contract looks toward its eventual replacement. Hermeus said it won the contract after designing, building, and successfully testing a prototype of an engine capable of propelling an airplane to Mach 5, or five times the speed of sound — about 3,300 mph. Mach 5 represents the delineation between supersonic and hypersonic speeds. The company completed those tests in March, Aviation Week reported. Hermeus plans to build a demonstrator vehicle over the next five years, with commercial aircraft envisioned in about a decade, Skyler Shuford, its cofounder and chief operating officer, said in 2019. A press release announcing the Air Force contract said part of the project would focus on integrating Air Force requirements into the airplane's designs. Hermeus emerged last year, announcing plans to develop a Mach 5 aircraft that could fly from New York to Paris in about 90 minutes. Ars Technica reported in May 2019 that the company raised an initial round of funding, led by Khosla Ventures, which it used to develop the prototype. Hermeus said it would use a turbine-based combined-cycle engine for the propulsion system, according to the report. The company's cofounders are alumni of SpaceX, Blue Origin, and the aerospace company Generation Orbit. At the time, Hermeus said it planned to use mostly existing technology and materials to achieve hypersonic travel. "We can make a vehicle fly that fast with today's technology," Glenn Case, a cofounder and the chief technology officer, said in a video published this spring. "We aren't getting into anything too miraculous," Shuford told Ars Technica last year. "We want to do engineering, not science." As of Thursday, the company listed about 10 open positions, including for airframe and propulsion engineers. https://www.businessinsider.com/hypersonic-air-force-one-hermeus-mach-5-2020-8

  • Is rapid prototyping the key to space?

    1 octobre 2019 | International, Aérospatial

    Is rapid prototyping the key to space?

    By: Nathan Strout Space technology is developing so fast that by the time the tech makes it through the acquisitions process and into orbit, it's practically obsolete. “The technology is moving at such an accelerated pace and these technologies are on such a steep trajectory that the traditional acquisition system just frankly can't keep up,” explained Ken Peterman, president of government systems for Viasat. To combat this trend, the U.S. Air Force's space acquisition arm, the Space and Missile Systems Center, is focused on quickly building prototypes as a way to speed up development and bring nontraditional companies into the Pentagon's space. Using tools such as other transaction authorities, Section 804 — a rapid acquisition approach that aims to field capabilities within two to five years — the Space Enterprise Consortium and Air Force pitch days, SMC is encouraging an acquisitions model focused on prototyping over the slower, more cumbersome Pentagon procurement procedure. The missile warning example Under the Pentagon's normal acquisition process, it could take the better part of a decade — or longer — from contract award to launching a satellite into orbit. Consider the Next Generation Overhead Persistent Infrared satellite system. OPIR is supposed to replace the Space-Based Infrared System as the nation's premier early warning missile detection and tracking satellite system, providing significantly more capacity than the current constellation. But under traditional acquisitions, OPIR wouldn't be available until nine years after contract award. That wasn't going to cut it. So service leaders took a new approach. Instead of going through the traditional acquisition process, the Air Force would adopt a rapid prototyping approach to accelerate development. And rather than develop large, exquisite satellites meant to last generations, new satellites would be smaller, less expensive and built for replacement in three- to four-year cycles. “We have existing programs of record ... that continue to take the four or five or six years or whatever that we originally contracted for. I think our goal going into the future is to get more on a three- to four-year cycle for our satellites, not just in production but also in terms of their amount of principal time on work,” said SMC Commander Lt. Gen. John Thompson. Lockheed Martin used this approach to build three OPIR satellites. Instead of subcontracting with one company to build the satellites' payloads, Lockheed Martin is having two teams compete to build the best OPIR payload. This not only mitigates the risk of failure by having two competing prototypes, but also moves to a fail-early model where a successful prototype is less likely to lead to issues later on. Applied to OPIR, rapid prototyping has cut the projected timeline for the project in half. “It is harder to move fast if you haven't done the underlying innovation, prototyping and technology development that allows those systems to go forward. So even when you look at things like Next Gen OPIR, which is not a three- to four-year cycle, we're bringing that from what would have been 108 months down into the five-year timeline; that was the fuel,” said Col. Dennis Bythewood, program executive officer for space development at SMC. Hither the Space Enterprise Consortium OPIR is one example of the rapid prototyping approach the Air Force is taking with space procurement. But perhaps the best example of SMC's rapid prototyping approach is the Space Enterprise Consortium, or SpEC. Established in 2017 through an other transaction authority, or OTA, SpEC is an organization comprised of 325 members who can apply to build space-related prototypes. To date, the Air Force has issued more than 50 awards to the group to develop prototypes, ranging from a ground system for OPIR to a new space vehicle that could extend the Link 16 network to beyond line-of-sight communications. Often, the consortium awards multiple contracts for one project, allowing companies to compete to produce a viable technology. Although not every prototype succeeds, the approach allows for failure earlier in the development process than the traditional acquisition model. “[This strategy] allows individual components to fail, but us to continue to move forward. And that's a place where you can see competitive prototyping with multiple vendors going head-to-head. I don't know which one will be successful when we start, but there's a much higher likelihood that I'm going to end up with multiple success at the tail end,” Bythewood said. Because the consortium specializes in OTAs, it's able to open the door to nontraditional companies that don't have the time or resources to go through the regular acquisition process under the Department of Defense. “OTAs are good in the sense that they're a lot more flexible, they're not hard contracts — they're just agreements. And in that respect, they attract nontraditional suppliers, people who haven't been working with DoD and don't want to recall all their accounting systems, so that they can comply with all the cost-reporting requirements for DoD and everything like that. So for a lot of companies, they're attractive,” said Cristina Chaplain, director of the Government Accountability Office's contracting and national security acquisitions team. Small startups and venture capital-funded companies are a big part of commercial growth in space. But for a long time, these companies have been frustrated in their attempts to engage with the Pentagon on space, Chaplain said. OTAs, and the consortium in particular, knock down barriers between the DoD and small, commercial, space-focused companies. Of course, working with less traditional companies also opens the door to increased risk. These companies aren't necessarily familiar with the way the Pentagon does business. And even if OTAs offer flexibility, working with the government be a major challenge. That's why SpEC was designed with mentorship in mind. In the SpEC framework, there's room for these small companies to partner with larger, more established players. Kay Sears, Lockheed Martin's vice president and general manager for military space, explained that defense contractors can work with SpEC to find innovative startup companies that need help bringing their new technologies to bare for the Pentagon. The result is a symbiotic relationship, where prime contractors such as Lockheed can take smaller companies under their wing as they navigate the complex world of the DoD, while the startups can help Lockheed innovate. “We're not asking those companies to become defense companies, we're asking them to actually stay commercial and stay motivated to their original business plan, but to work with us and we can mentor them to help develop that technology,” Sears said. “So we have to find those nuggets of commercial capability and commercial innovation, and then bridge that into the mission understanding that we have and the mission systems that we can contract (for) and deliver.” ‘The darker side' While the Air Force is quick to tout the expected benefits of the SpEC approach, there are potential downsides. For one, transparency. “The darker side is that it's harder to have good management and oversight if you're not requiring all the same things from the contractors. You're not getting the same kind of reporting,” Chaplain said. The Government Accountability Office can help hold the Pentagon and contractors accountable over the long lifetime of a program contract, tracking spending increases, delays and failures. And the GAO is able to provide some oversight for OTAs, however it's more difficult than programs going through the regular acquisitions process, Chaplain explained. Another problem is funding. The rapid prototyping approach requires more money up front and a less risk-averse approach. Next Gen OPIR will be a test run for whether Congress can get on board with that approach for space. As the Air Force sped up OPIR's timeline with rapid prototyping, it created a significant increase in their near-term budget. For fiscal 2020, the Pentagon asked for $1.4 billion for the program. That's a $459 million increase over what was projected for FY20 during the last budget cycle. The House has balked at that amount, authorizing $1 billion of the requested funding. The Senate Appropriations Committee has taken the opposite approach. Not only did Senate appropriators vote to fully fund the request; they threw in an additional $536 million to fully fund the program. As the senators noted in their report on the bill, OPIR will serve as a test case for whether Congress will support SMC's rapid prototyping approach. “The Committee believes the program will be a[n] exemplar for rapid acquisition of space programs, whether the program succeeds or fails,” the report read. “Failure will have implications for Congress's willingness to fund future programs using the National Defense Authorization Act section 804 rapid prototyping and fielding authorities for similarly large, or even middle tier programs, for years to come. Alternatively, if the program is to have any chance of success, the [Defense] Department cannot continue to rely on reprogramming requests for its funding.” The once and future SpEC Even as the fight over OPIR funding continues in Congress, the Space Enterprise Consortium and its funding has grown by leaps and bounds. “It has been a vast success story for [SpEC]. We began that contract with a $100 million ceiling, which meant that we could execute many different actions within it up to about $100,000. We took that five times higher within the first year,” Bythewood said. And SMC seems keen to build on that approach. On Aug. 20, the Space and Missiles Systems Center issued a request for information expressing an interest in re-competing the SpEC OTA agreement. This new SpEC would have a $12 billion ceiling over 10 years. “We're not going to be awarding a $1 billion contract within SpEC OTA. We're looking at having smaller competitive prototyping efforts that get our products off on the right start in order to deliver capabilities sooner. So if there's a fear ... that we're going to be executing huge programs of record under the SpEC OTA vehicle, that's a kind of [unfounded] fear,” Thompson said. Another example of the rapid prototyping initiative is the Air Force's new pitch days concept, where on designated days, companies can present new technologies to the government and potentially win a Section 804 contract within minutes. The Air Force has been holding pitch days this year for a variety of platforms. The Air Force will be holding its first “Space Pitch Day” from Nov. 4-8 with a focus on launch systems, data mining, space visualization and space communications. Whether it's SpEC, pitch days or working closely with contractors, it's clear SMC sees rapid prototyping as the way forward for military space. “We recognize that when you try new things, some will work great, some will work moderately well and some you might fail fast on. But that's OK because clearly we need to do things differently,” said Peterman of Viasat. “We applaud the kinds of things these senior leaders are doing to try to drive change, get these cutting-edge capabilities into the war fighters' hands as quickly as possible.” https://www.c4isrnet.com/battlefield-tech/space/2019/09/30/is-rapid-prototyping-the-key-to-space/

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