Archive for the ‘military’ category

Jul 31, 2022

Space Command moving to Alabama: 4 steps remain; what’s next?

Posted by in categories: military, space

The U.S. Space Command’s proposed move to Huntsville passed a big test July 13 when the Pentagon released a draft environmental assessment finding “no significant impacts on the human or natural environment” if the headquarters is built on the Redstone Arsenal site.

Although there remain four steps ahead of the move, Republican U.S. Sen. Tommy Tuberville of Alabama said the environmental assessment should be the last major hurdle for the plan to move the command from startup headquarters in Colorado to a permanent site. The move would bring 1,800 headquarters staff and their families to north Alabama.

“The Redstone Arsenal site is the (Department of the Air Force’s) Preferred Alternative for implementation of the Proposed Action,” the environmental assessment said. The proposed action is a permanent headquarters.

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Jul 30, 2022

Breakthrough in faster-than-sound jet engines

Posted by in categories: military, space travel

Almost 75 years ago, U.S. Air Force pilot Chuck Yeager became the first person to fly faster than the speed of sound. Engineers have been pushing the boundaries of ultrafast flight ever since, attaining speeds most of us can only imagine.

Today, military fighter jets like the F-15 routinely surpass Mach 2, which is shorthand for twice the speed of sound. That’s supersonic level. On a hypersonic flight—Mach 5 and beyond—an aircraft travels faster than 3,000 miles per hour. At that rate, you could make it from New York to Los Angeles on a lunch break.

The same propulsion technology that goes into rockets has made hypersonic speeds possible since the 1950s. But to make hypersonic flight more common and far less expensive than a , engineers and scientists are working on advanced jet engine designs. These new concepts represent an enormous opportunity for , space exploration and national defense: Hypersonic aircraft could serve as reusable launch vehicles for spacecraft, for example.

Jul 30, 2022

DARPA’S Hypersonic Air-breathing Weapon Concept achieves successful flight

Posted by in categories: energy, military

DARPA, in partnership with the U.S. Air Force, completed a free flight test of its Hypersonic Air-breathing Weapon Concept (HAWC) last week. The missile, built by Raytheon Technologies, was released from an aircraft seconds before its Northrop Grumman scramjet (supersonic combustion ramjet) engine kicked on. The engine compressed incoming air mixed with its hydrocarbon fuel and began igniting that fast-moving airflow mixture, propelling the cruiser at a speed greater than Mach 5 (five times the speed of sound).

The HAWC vehicle operates best in oxygen-rich atmosphere, where speed and maneuverability make it difficult to detect in a timely way. It could strike targets much more quickly than subsonic missiles and has significant kinetic energy even without high explosives.

“The HAWC free test was a successful demonstration of the capabilities that will make hypersonic cruise missiles a highly effective tool for our warfighters,” said Andrew “Tippy” Knoedler, HAWC program manager in DARPA’s Tactical Technology Office. “This brings us one step closer to transitioning HAWC to a program of record that offers next generation capability to the U.S military.”

Jul 28, 2022

DoD signaling demand for satellite support services in geostationary orbit

Posted by in categories: computing, military, mobile phones, satellites

WASHINGTON — The Defense Innovation Unit is funding space projects that the agency hopes will spur commercial investments in satellite refueling technologies and support services for geostationary satellites.

“Imagine a world where every 18 to 24 months, you could simply upgrade the processor on a satellite in GEO the way that you upgrade your smartphone to take advantage of new processing power and new functionality,” said Steve “Bucky” Butow, director of the space portfolio at the Defense Innovation Unit.

DIU, based in Silicon Valley, is a Defense Department agency established in 2015 to help bring privately funded innovation into military programs.

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Jul 26, 2022

World’s first laser-controlled drone easily evades countermeasures

Posted by in categories: drones, military

Counter-drone systems typically attack a UAV’s radio control or GPS systems, disabling pilot control as well as pre-programmed missions. But British defense tech company QinetiQ has now demonstrated a laser-controlled drone these systems can’t stop.

Jul 26, 2022

Stop All Hypersonic Weapons Absolutely and Sink Entire Taiwan Invasion At Once

Posted by in categories: military, space travel

Multiple ways to stop hypersonic missiles with current (non hypersonic) technology.

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Jul 26, 2022

The UK’s Sixth-Generation Fighter Jet Just Moved A Step Closer to Reality

Posted by in category: military

Jul 26, 2022

L3Harris, Northrop picked for $1.3 billion hypersonics tracking satellite project

Posted by in categories: military, satellites

WASHINGTON — L3Harris Technologies and Northrop Grumman Strategic Space Systems won a U.S. Department of Defense contract to furnish multimillion-dollar satellites that help detect, identify and target missiles and other cutting-edge threats, including hypersonics.

The Space Development Agency on July 18 said the companies will each produce 14 prototype satellites for the Tranche 1 Tracking Layer, a key component of the National Defense Space Architecture, which will consist of hundreds of satellites operating primarily in low-Earth orbit.

Together, the agreements are valued at more than $1.3 billion. The L3Harris deal came in at $700 million, making each satellite and related service package worth roughly $50 million. The Northrop Grumman deal came in at $617 million.

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Jul 26, 2022

Spaceflight experiment Recurve launches in support of warfighter comms

Posted by in categories: military, space travel

The launch of Recurve reveals the latest technological advancements in radio frequencies and information transmission in the increasingly contested environment of space.

Jul 26, 2022

Radar gets a major makeover

Posted by in categories: military, surveillance

If radars wore pants, a lot of them would still be sporting bell-bottoms.

Significant aspects of haven’t fundamentally changed since the 1970s, said Kurt Sorensen, a senior manager who oversees the development of high-performance radio frequency imaging technologies at Sandia National Laboratories. Like a record player, most military-grade systems are still analog.

Now, Sandia is giving radar a major digital makeover. Researchers are working to replace legacy analog radars commonly used by the military with a new, digital, software-defined system called Multi-Mission Radio Frequency Architecture. The overhauled design promises U.S. warfighters unprecedented flexibility and performance during intelligence, surveillance and reconnaissance operations, even against sophisticated adversaries.

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