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17 juillet 2018 | International, Aérospatial

The military is building a space plane. Now it looks to have an engine up to the task

By SAMANTHA MASUNAGA

A decade after the U.S. Air Force commissioned the next generation of GPS satellites, the first of these spacecraft is finally set to launch into orbit later this year.

As with other national security missions, a roughly 200-foot-tall rocket will blast the massive satellite to space, fulfilling a contract worth more than $80 million.

But as nations develop technology to disable or shoot down satellites — as China did to one of its own satellites with a ground-based ballistic missile in 2007 — the U.S. military has started to look at options for rapidly and cheaply launching smaller crafts into space.

An experimental program spearheaded by a Pentagon research agency could eventually be part of that solution.

The Defense Advanced Research Projects Agency, along with aerospace giant Boeing Co., is developing a reusable spaceplane expected to launch small satellites 10 times in 10 days.

The vehicle's first test flight is set for 2021, which hints at the Defense Department's growing interest in reusable rocket technology, particularly its potential to drive down launch costs and speed up turnaround time.

In recent weeks, the spaceplane's rocket engine, known as the AR-22, completed 10 test fires in 240 hours without need for refurbishments or major repairs, said Jeff Haynes, program manager at Aerojet Rocketdyne. The test firing took place at NASA Stennis Space Center in Mississippi from June 26 to July 6.

The engine test is “really good progress,” said Claire Leon, director of Loyola Marymount University's graduate program in systems engineering and former director of the launch enterprise directorate at the U.S. Air Force's Space and Missile Systems Center.

“SpaceX has had its success,” she said. “I think this engine test also demonstrates that other companies are doing the technology development and having success that will enable reusability.”

The title of first reusable system belongs to NASA's Space Shuttle, though more recently, several commercial space firms, including Microsoft co-founder Paul Allen's Stratolaunch and British billionaire Richard Branson's Virgin Orbit, have developed systems that would reuse aircraft to launch satellites from the belly of a plane.

https://www.stripes.com/news/the-military-is-building-a-space-plane-now-it-looks-to-have-an-engine-up-to-the-task-1.538009

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  • Beyond Chinook: Army Secretary Challenges Industry To Revolutionize Heavy Lift

    1 mai 2019 | International, Aérospatial

    Beyond Chinook: Army Secretary Challenges Industry To Revolutionize Heavy Lift

    By SYDNEY J. FREEDBERG JR. A light scout and a mid-size transport remain Army aviation's top two priorities, Secretary Mark Esper said, but industry needs to start thinking about the next heavy-lift aircraft and stop fighting against cuts to the venerable CH-47. WASHINGTON: “I'm asking industry is to think about heavy future vertical lift,” Army Secretary Mark Esper told reporters today. “Where I need their heads to be is thinking about future heavy vertical lift, not about how do we maintain what we have now and make upgrades here or there.” Translation: Boeing and Pennsylvania legislators, stop fighting me to restore funding for the latest upgrade to the venerable CH-47 Chinook — built outside Philadelphia — and join me in brainstorming a radically better aircraft for future great-power wars with Russia or China. “I really want to think aggressively, boldly about what the future may hold, how it can be different,” Esper said. Is that just your advice to industry, I asked, or is there some kind of preliminary study planned that companies could actually get government money for? It's premature to talk dollars, Esper replied. “Whether we help fund that at some point, I don't know, I'm not going to talk about that right now,” he said. “My comment was only we need aircraft in the future that can do that heavy vertical lift movement, but can ... survive in a very contested airspace and keep up with the FARAs and FLRAAs.” That's the Future Attack Reconnaissance Aircraft — a light scout to fill the gap left by the retired OH-58 Kiowa — and the Future Long-Range Assault Aircraft — a mid-size transport to replace the UH-60 Black Hawk. Both are intended to be high-speed, long-range aircraft.The solution probably will be turboprop/helicopter hybrids, rather than conventional helicopters, that can operate on fast-paced, far-flung future battlefields where precision-guided missiles can kill the forward fuel depots and maintenance bases on which today's shorter-ranged helicopters rely. FARA is the Army's top-priority aircraft program, Esper reiterated here at the Brookings Institution today, and FLRAA is No. 2. But once the light scout and the mid-size transport programs are further along, Esper said for the first time today, his no. 3 priority will be a new heavy hauler. “We're not there yet, right, obviously we need to get FARA and FLRAA moving,” Esper said. “No. 3 is I need to eventually think about what's the future of heavy vertical lift,” Esper told the audience at Brookings. “What's the future replacement for the Chinook” with the greater speed, range, payload, and survivability required for future battlefields? Full article: https://breakingdefense.com/2019/04/beyond-chinook-army-secretary-challenges-industry-to-revolutionize-heavy-lift

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  • DSEI: UK’s Warrior fleet upgrade about 18 months away from kickoff

    12 septembre 2019 | International, Terrestre

    DSEI: UK’s Warrior fleet upgrade about 18 months away from kickoff

    By: Andrew Chuter LONDON — Negotiations are underway on a production contract to update the British Army's fleet of Warrior infantry fighting vehicles, according to the Ministry of Defence official running the program. “We are now talking about how we go forward on production,” Marcus Bruton, the MoD's Warrior upgrade director said during an interview at the DSEI show Sept. 10. Bruton said the two sides were probably 18 months away from a contract allowing Lockheed Martin and its supply chain to start upgrading the Warrior. The effort to progress the long running Warrior capability sustainment development program into the manufacturing phase has come on the back of Lockheed Martin successfully achieving 20 battlefield mission assessments – a key milestone in the reliability growth test program now underway. The MoD said in March it would open manufacturing contract negotiations once it was satisfied with progress on reliability trials. In late August Lockheed Martin achieved that milestone. The company said that in cooperation with the British Army Armoured Trials and Development Unit, it had fired thousands of rounds from the new CTAI developed 40 mm cannon, driven more than 5,000 kms, and achieved the battlefield mission assessments with flying colors. Lockheed Martin Warrior program Director Lee Fellows said he is expecting a deal towards the back end of next year. The company is keen to get the production contract signed and sealed but “we need to get it right, so it will take as long as it needs to," he added. "Getting it done at pace and quality aequally important.” Quantities, the mix of variants and affordability are among the items due to be discussed. Discussions on how to overcome issues of design authority ownership is also part of the build up to a production contract, said the officials. BAE holds the design authority on the existing legacy Warrior, but Lockheed Martin holds the approval for the extensive upgrade — particularly the new turret. “The expectation is there will be a collaboration with BAE. We are talking with them already, that's part of the negotiations,” said Fellows. Neither executive will comment on what sort of upgrade numbers the British Army is looking at. Roughly 740 vehicles were delivered to the British Army starting 1988 but a number were lost in Iraq and Afghanistan. A number of vehicles have been earmarked for battlefield support duties that don't require a new turret. At one time the number of hulls to be updated was in the region of 380, but suppliers at a company briefing in March said that as the British Army downsized and budgets became more challenging the figure slipped to around 265 or lower. The Lockheed Martin executive said that the next 18 months or so will bring further reliability growth trials, but that the major risks have been removed and testing had not unearthed any significant problems. The update is considered one of the Army's top priorities alongside other vehicle programs, including the Challenger 2 tank upgrade and procurement of the Boxer mechanized infantry vehicle from German company Artec. Lockheed Martin was awarded a development deal to upgrade Warrior vehicles back in 2011, but the program has been dogged with problems slowing down progress towards a production deal by several years. The update program includes a new turret fitted with the CTAI cannon, electronic architecture, a modular protection systems and other enhancements. It's a much needed update. The current vehicle's inability to fire on the move is just one of a number of shortcomings deemed to make the Warrior obsolete by current battlefield standards. https://www.defensenews.com/digital-show-dailies/dsei/2019/09/11/uks-warrior-fleet-upgrade-about-18-months-away-from-kickoff

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