군대 뉴스

As the US Air Force looks to the future of special operations, vertical lift takes center stage – Yahoo News

WASHINGTON — In a future war against a technologically advanced peer like China or Russia, U.S. Air Force special operations forces will need aircraft that is faster, more survivable and capable of traversing longer ranges than the aircraft currently available, while still being able to launch from austere locations without a runway.
The answer to the problem, according to Maj. Gen. David A. Harris, the Air Force’s director of innovation and integration, might be found in the nascent high-speed vertical takeoff and lift aircraft being developed by industry.
“If you look at the time and distance problem that [U.S. Indo-Pacific Command] presents to us, I have to be able to get to someplace fast,” he said during an Aug. 24 interview with Defense News.
“Speed is also survivability,” he added. “I want something that can land off of the runway, but yet have enough useful cargo space where I can offload a runway repair kit, fuel, more base defense munitions [or] more armament.”
The Air Force is looking for a high speed vertical takeoff and landing aircraft that can achieve similar speeds to jet aircraft, with systems such as active/passive threat detection and countermeasures that can make it more survivable in a combat environment. The aircraft should also be large enough to rapidly transport cargo and be capable of plugging into the service’s wider battle network.
Longer endurance and the ability to fly long ranges is also a plus.
“[It’s] something that could fly maybe 800 miles,” Harris said. “It’s low visibility, it’s low signature, but it can get in and it can get out.”
High-speed VTOL aircraft technology is still relatively immature, and the Air Force has no program of record to fund the development of such technology.
However, companies like Bell Flight and Lockheed Martin’s Sikorsky have presented concepts to the Air Force that have generated some interest, Harris said.
“There’s a lot of different designs out there,” he said. “We’re still trying to get through and to figure out what’s going to be the most beneficial for us when it comes to the requirements we have to operate and specifically support logistics under attack.”
In August, the service’s innovation hub AFWERX conducted a showcase of 35 high-speed VTOL concepts, with entrants from longtime defense contractors like Bell and newcomers such as Horizon Aircraft.
With that event now over, the companies are waiting to hear whether the service will award money for further development activities.
“We’re working pretty aggressively to prepare for what we believe is the true proof of concept, which is an air vehicle in flight,” said Jeff Nissen, senior manager for advanced technology at Bell Flight. “This is an aircraft that’s doing something that’s never been done before. We feel that that is the aha moment or the critical milestone event to really showcase what this technology can do.”
Longer ranges, tougher adversaries
Special operations forces were often the tip of the spear during the wars in Afghanistan and Iraq, flying in on AC-130 gunships or CV-22 Ospreys during the dark of night, inserting troops to conduct covert operations, providing close air support to troops on the ground, or rescuing an injured servicemember stuck in an austere location.
“Coming out of the war on terror, we had a bias toward action,” said Harris, who served as a master navigator for Air Force Special Operations Command onboard AC-130s and MC-130s. “At the end of the day, you’re still going to kill terrorists on the battlefield.”
But with a potential adversary like China, AFSOC will face an a much more advanced foe with long-range weaponry capable of disrupting operations at most of the U.S. Air Force’s major airbases in the Asia-Pacific and holding most of its current aircraft inventory at a distance.
High speed VTOL technology could enable special forces to conduct missions such as personnel recovery and aeromedical evacuation, as well as to quietly insert and retrieve special operators, he said.
The technology could also be key outside the SOF community for implementing the Air Force’s “agile combat employment” concept, which calls for small packages of aircraft to be able to distribute to austere airfields inside friendly nations, where they can refuel, reload weapons and take off again.
“At some point, you run out of fuel, and at some point, you run out of munitions, and you have to be able to go into that contested environment to resupply,” Harris said. “And if your runways are bombed, or cratered, and you can’t land things in there, how do you do it?”
In early August, Bell unveiled conceptual designs for a high-speed VTOL platform, which could come in light, medium and heavy-lift variants. The company hopes to develop a rotorcraft that can fly at more than 400 knot speeds — far beyond what tiltrotor technology can currently accomplish — and achieve a mission radius of 500 miles.
Survivability is also a key characteristic of the design concept, and it’s attained through concealing the rotor blades after the aircraft takes off, folding them inward, and relying on jet thrust when flying forward, Nissen said.
“If you look at our aircraft in its cruise mode configuration, you won’t see any spinning rotors and that’s what predominantly drives the radar cross section of a rotorcraft, is the rotor disc,” Nissen said. “Look at that aircraft concept in its jet mode configuration. It sure does look a lot like a jet. That means it will have the signature like a jet in radar.”
Bell has begun doing risk reduction on what is sees as the three main areas for technology development: the vertical lift component, flight controls and engine technology.
Propulsion is particularly challenging due to the requirements to generate shaft horsepower for the rotor system and then transition to jet thrust to enable high speeds and high cruise altitudes. An flight demonstrator for the light variant would use two different commercial engines to achieve that capability, Nissen said.
“Other variants, you might be able to combine that into a single engine,” he said. “There’s work that we’ve been doing — especially with our supplier Rolls Royce Libertyworks — on what is called a convertible engine that has both the ability to generate shaft horsepower as well as turbofan thrust.”
While Harris mentioned Sikorsky has also presented information on its future rotorcraft concepts to the Air Force, the company declined to provide further information.
“While it’s too early to comment on specific conversations and/or possible solutions, we look forward to working with the U.S. Air Force as it refines its needs,” Jay Macklin, Sikorsky’s business development director for future vertical lift, said in a statement.
Aerospace startups and other nontraditional vendors have also shown interest in working with the Air Force on high-speed VTOL.
AFWERX’s showcase event included entrants such as Horizon Aircraft’s Cavorite X5 — which the company claims will fly at speeds of 275 miles per hour over 340 mile ranges — and Jaunt Air Mobility’s hybrid-electric MAV55.
Other contenders include a Northrop Grumman-Jetoptera team, which collaborated on a concept that will use “adaptive fluidic propulsion” to create an aircraft that can fly like a jet and hover like a helicopter, all while using less fuel.
Ultimately, how fast high-speed VTOL technology can be matured will depend on whether the Air Force is ready to buy into a development program, Nissen said.
“We’ve developed plans to demonstrate this quickly and create an opportunity to field it quickly,” he said. “But it’s really going to be driven by a future, to-be-disclosed acquisition and program of record timeline.”
Fourteen Mexican soldiers were detained early Saturday morning for several hours by U.S. border agents after they crossed into El Paso, Texas, from Mexico's Ciudad Juarez, the U.S. Customs and Border Protection (CBP)said. "Just after midnight today CBP officers working at the Bridge of the America's international crossing in El Paso noted two Mexican military vehicles crossing the boundary and entering the U.S.," the CBP told Reuters in an emailed statement.
Photo Illustration by The Daily Beast / Photos Courtesy Chelsea CurnuttThe Army has relieved a lieutenant colonel of his command after multiple women alleged that he had carried on affairs with them and lied about his deployments in order to keep them secret—but he hasn’t been drummed out of the military.Richard Kane Mansir’s double life was exposed by his girlfriends earlier this year, sparking an investigation by the Army, which said it had removed him from his supervisory post at Fort Eustis
It appeared to be a rare GOP criticism of what amounts to something close to a cult of personality surrounding former President Donald Trump.
The FBI has launched an investigation into the alleged assault of a female soldier perpetrated by a group of male Afghan refugees being lodged at a New Mexico military complex.
Erdogan confirmed his plans to CBS News chief foreign affairs correspondent Margaret Brennan after she asked him about Russian government claims that Turkey would purchase more S-400 systems.
Great-power competition among near-peer states – namely the US, China, and Russia – is bringing a return to more subtle or indirect forms of conflict.
The former president's niece said she was lying when she said she respected McCain's parents
President Joe Biden hasn't derailed an investigation into mounted Border Patrol agents seen pursuing Haitian migrants who had illegally crossed the southern border.
Rep. Alexandria Ocasio-Cortez sent a letter to her constituents Friday explaining why she wept during a House vote this week on a stand-alone provision to fund Israel's Iron Dome missile defense system.
President Biden earned the ire of Border Patrol agents after endorsing the false claim that they were recorded "whipping" migrants who were attempting to cross the Rio Grande.
The email to supporters was sent after former President Trump blasted his presidential predecessor for sponsoring a fundraiser for Rep. Liz Cheney.
Brandon BellAs the dual civil and criminal New York investigations into the Trump Organization roll on, a New York state judge unsealed a court order on Friday giving Donald Trump’s company and some of his top lieutenants an ultimatum: Either turn over all the documents to comply with subpoenas from the New York Attorney General’s office (NYAG), or you’ll have to pay for a third party to do it for you.In the filing, the Trump Organization agreed that if the NYAG believes the company has not full
A large group of Boko Haram jihadists have moved out of their base in northeast Nigeria to join forces with criminal gangs in the northwest, where they are engaged in weapons training and kidnapping, military sources said on Friday.
Huawei Chief Financial Officer Meng Wanzhou arrived in China on Saturday, ending her near three-year U.S. extradition fight, the same day two Canadians detained by Beijing for more than 1,000 days returned home, potentially paving the way for improved ties between China and the two western allies. Meng https://www.reuters.com/business/huawei-heir-apparent-prepares-life-after-three-years-canada-court-battle-2021-09-24, the daughter of Huawei Technologies founder Ren Zhengfei, was allowed to go home after reaching an agreement with U.S. prosecutors on Friday to end a bank fraud case against her. Two Canadians detained by Chinese authorities just days after Meng's arrest – Michael Kovrig and Michael Spavor – were embraced on the tarmac by Canadian Prime Minister Justin Trudeau after they landed in Calgary.
And she thanked Donald Trump for helping her sell more books by suing her.
Taiwan’s main opposition Nationalist Party chose former leader Eric Chu as its new chairperson Saturday in an election overshadowed by increasing pressure from neighbor China. Four candidates, including incumbent chair Johnny Chiang, had competed for the leadership of the party that has advocated closer relations with Beijing.
The sniper rifle was then checked to make sure it still fired with precision during the post-drop live-fire trials.
Bannon boasted on his "War Room" podcast that he told Trump before the Jan. 6 insurrection: "You need to kill this administration in the crib."
The far-right congresswoman confronted Democrats on the steps outside the House chamber after the passage of a Democratic bill to protect abortion.
Why Israel should reject U.S. military aid

source