Tuesday, June 25, 2024

Defense News: The Advanced Drone Solution for Israel’s Security and Civilian Needs

 

The Advanced Drone Solution for Israel’s Security and Civilian Needs

After the events on October 7th, hundreds of Skydio drones have been distributed to Israeli security forces 

By Eyal Boguslavsky, Israel Defense, 25/06/2024 

https://www.israeldefense.co.il/en/node/62403



Nimrod Eshel, CEO of DefenSync, emphasized the significance of Skydio's local office in Israel, which focuses on delivering advanced drone solutions for security and civilian needs. DefenSync highlights one of Skydio's remarkable advantages: its high degree of autonomy. This autonomy enables unmanned missions to be executed day and night without manual intervention, utilizing computer vision and artificial intelligence technologies. The capability to autonomously detect obstacles and adapt the flight path provides a significant advantage in modern combat zones.


Following the events of October 7th, hundreds of Skydio drones have been distributed in Israel, predominantly to Israeli security forces. Presently, the Skydio X10 and X10D drones are being deployed in Israel by DefenSync.

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Monday, June 24, 2024

Boeing’s Starliner Stuck at Space Station: Unraveling Helium Leaks and Thruster Troubles

By NASA, JUNE 22, 2024

The Starliner spacecraft on NASA’s Boeing Crew Flight Test is pictured docked to the Harmony module’s forward port as the International Space Station orbited 263 miles above the Mediterranean Sea. 
Credit: NASA

Boeing’s Starliner spacecraft is stuck at the Space Station for now as NASA and Boeing have adjusted the return schedule to address issues within the propulsion system while managing conflicts with planned spacewalks at the International Space Station.

This delay allows for comprehensive reviews and system checks, paralleling procedures from previous missions. While these evaluations occur, astronauts Butch Wilmore and Suni Williams remain active aboard the ISS, equipped with ample supplies and no pressing need to return to Earth soon.

NASA and Boeing Delay Starliner Return

Leadership at NASA and Boeing have again adjusted the return to Earth of the Starliner Crew Flight Test spacecraft with agency astronauts Butch Wilmore and Suni Williams from the International Space Station (ISS). The move off Wednesday, June 26, deconflicts Starliner’s undocking and landing from a series of planned International Space Station spacewalks while allowing mission teams time to review propulsion system data.

Mission Management and Safety Reviews

“We are taking our time and following our standard mission management team process,” said Steve Stich, manager of NASA’s Commercial Crew Program. “We are letting the data drive our decision-making relative to managing the small helium system leaks and thruster performance we observed during rendezvous and docking. Additionally, given the duration of the mission, it is appropriate for us to complete an agency-level review, similar to what was done ahead of the NASA’s SpaceX Demo-2 return after two months on orbit, to document the agency’s formal acceptance on proceeding as planned.”

Future Return Opportunities and Readiness

A media telecon with mission leadership will follow the readiness review’s conclusion, and the agency will share those details as they are solidified. Boeing’s Starliner spacecraft remains cleared for return in case of an emergency on the space station that required the crew to leave orbit and come back to Earth.

Mission managers are evaluating future return opportunities following the station’s two planned spacewalks on Monday, June 24, and Tuesday, July 2.

An aurora streams below Boeing’s Starliner spacecraft docked to the forward port on the Harmony module as the International Space Station soared 266 miles above the Indian Ocean southwest of Australia. 
Credit: NASA

In-Orbit Performance and Crew Integration

“Starliner is performing well in orbit while docked to the space station,” said Stich. “We are strategically using the extra time to clear a path for some critical station activities while completing readiness for Butch and Suni’s return on Starliner and gaining valuable insight into the system upgrades we will want to make for post-certification missions.”

Positive Crew Feedback and Supply Status

Wilmore and Williams remain integrated with the Expedition 71 crew, assisting with station operations as needed and completing add-on in-flight objectives for NASA certification of Starliner.

“The crew’s feedback has been overwhelmingly positive, and they know that every bit of learning we do on the Crew Flight Test will improve and sharpen our experience for future crews,” said Mark Nappi, vice president and program manager, Boeing’s Starliner Program.

The crew is not pressed for time to leave the station since there are plenty of supplies in orbit, and the station’s schedule is relatively open through mid-August.



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Defense News: US Army to buy more than 1,000 Switchblade drones through Replicator

 US Army to buy more than 1,000 Switchblade drones through Replicator


 By Courtney Albon, Defense News, June 22nd, 2024

The Army will buy at least 1,000 Switchblade 600s, which can strike tanks or other armored targets, as part of the first round of Replicator. (Stephen Losey/Staff)


The U.S. Army will field more than 1,000 Switchblade 600 drones over the next year as part of Replicator — the Pentagon’s push to field thousands of uncrewed systems.


Gen. James Mingus, the Army’s vice chief of staff, revealed the quantity for the first time during a June 21 House Appropriations defense subcommittee hearing, hosted at the Defense Innovation Unit’s headquarters in Mountain View, Calif.


Built by AeroVironment, the Switchblade 600 loitering munition is one of a handful of systems the Defense Department plans to buy in the first tranche of the Replicator program and is the only one officials have identified by name. Others include an unspecified fleet of maritime drones procured through a DIU solicitation, a batch of uncrewed surface vehicles and a set of counter-drone systems.


The intent of Replicator, which Deputy Defense Secretary Kathleen Hicks announced last August, is twofold. In the near-term the Pentagon wants to field large numbers of attritable drones to counter China. But the larger goal is to develop an enduring process for buying technology to meet the department’s most urgent operational needs.


Thursday, June 20, 2024

Defense News: Israeli Navy receives second of new US-built landing craft

 

Israeli Navy receives second of new US-built landing craft


2,500-ton INS Komemiyut docks at Haifa Naval Base following lengthy voyage, months after first vessel delivered


By EMANUEL FABIAN, Times of Israel, 16 June 2024

INS Komemiyut landing craft is seen being escorted into Israel's territorial waters by other Navy vessels, June 16, 2024. (Israel Defense Forces)


The Israeli Navy on Sunday received the second of two new landing craft from a shipyard in the United States, with the vessel mooring at the Haifa Naval Base after making a lengthy voyage to the country.

The US-built INS Komemiyut was the Navy’s second landing craft, after the INS Nahshon, which was received in early October last year.

As the INS Komemiyut arrived in Israel’s territorial waters, it was escorted by a flotilla of other Navy ships, with one vessel symbolically leaving the formation as a salute to the slain soldiers of the war, the military said.

The Israel Defense Forces has previously said that the vessels, which weigh 2,500 tons each and are approximately 95 meters (311 feet) in length and 20 meters (65 feet) wide, will “act as a central pillar in adapting the Israeli Navy to the modern and multi-arena battlefield.”

The vessels were procured using funds from US military aid to Israel.

“Today, at the same time as IDF soldiers are engaged in intense fighting in the various arenas, the Navy received a vessel of strategic significance for the State of Israel. During these historic moments, we salute our brothers in arms who fell during their mission to maintain the security of the State of Israel,” the chief of the Navy, Vice Adm. David Sa’ar Salama, said in remarks released by the military on Sunday.

Vice Adm. David Sa’ar Salama, head of the Israeli Navy, speaks at a ceremony at Atlit Naval Base, July 10, 2023. (Israel Defense Forces)

“Sailors of the INS Komemiyut, today you have completed a voyage of thousands of miles. The end of the voyage is the beginning of the journey for you. Your future actions will strengthen the cooperation between the IDF branches, expand the range of military operations, and maintain the security of the State of Israel,” he added.

The Navy expects to declare the INS Nahshon operational during 2024. No timeline was given for INS Komemiyut.

Each landing craft team consists of dozens of combat sailors, a quarter of them female soldiers and officers, the IDF said previously. The ship will be commanded by a Navy officer with the rank of lieutenant commander — the Ground Forces equivalent of a major.

The Israeli Navy INS Nahson landing craft is seen at the Pascagoula Shipyard, Mississippi, August 8, 2023. (Israel Defense Forces)

Landing craft are primarily used to transport troops and equipment across the sea and deploy them on the shore during an amphibious assault.

The Israeli Navy used such vessels since its inception in 1948 and until 1993, when the last of the aging landing crafts were decommissioned, with the military assessing at the time that it had no use for newer models.

The new procurement of the landing crafts for the Israeli Navy began some four years ago.

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Wednesday, June 19, 2024

Cheap yet ultrapure titanium metal might enable widespread use in industry

JUNE 17, 2024, by U. of Tokyo

Researchers from the Institute of Industrial Science, The University of Tokyo, have efficiently removed oxygen from high-oxygen-concentration titanium, which might help reduce the production cost of an otherwise versatile metal.
 Credit: Institute of Industrial Science, The University of Tokyo

Titanium is the ninth most abundant element in the Earth's crust, yet products based on pure titanium are uncommon because it's expensive to remove the oxygen from titanium ore. Reducing costs would encourage manufacturers to take advantage of the highly useful properties of titanium in their products.

Now, in a study published in Nature Communications, researchers from the Institute of Industrial Science, The University of Tokyo, have developed a procedure that reduces the cost of producing titanium that's almost entirely free of oxygen. This oxygen removal protocol might benefit technological development and environmental sustainability.

Titanium is an incredibly versatile material because not only does it typically resist chemical damage, it's strong yet light. For example, its light weight compared with other metals is why the base frame of modern iPhones consists of titanium alloy, despite the increased cost.

Unfortunately, producing ultrapure titanium is significantly more expensive than manufacturing steel (an iron alloy) and aluminum, owing to the substantial use of energy and resources in preparing high-purity titanium. Developing a cheap, easy way to prepare it—and facilitate product development for industry and common consumers—is the problem the researchers aimed to address.

"Industry mass-produces iron and aluminum metal—but not titanium metal, because of the expense of removing the oxygen from the ore," explains Toru H. Okabe, lead author of the study. "We use an innovative technology based on rare-earth metals that removes oxygen from titanium to 0.02% on a per-mass basis."

A critical step in the researchers' protocol is reacting molten titanium with yttrium metal and yttrium trifluoride or a similar substance. The end result is a low-cost, solid, de-oxygenated titanium alloy. The reacted yttrium can be recycled for further use. A highlight of the researchers' work is that even titanium scrap that contains large amounts of oxygen can be processed in this manner.

"We're excited by the versatility of our protocol," says Toru H. Okabe. "The lack of intermediate compounds and straightforward procedures will facilitate adoption in industry."

This work is an important step forward in making more efficient use of high-purity titanium than at present. A limitation of this work is that the resulting de-oxygenated titanium contains yttrium, up to 1% by mass; yttrium can influence the mechanical and chemical properties of titanium alloy. After solving the yttrium contamination problem, applications to industrial manufacturing will be straightforward.


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Defense News: Congress wants to restore nukes on conventional B-52 bombers

Congress wants to restore nukes on conventional B-52 bombers 

By Bryant Harris and Stephen Losey, Defense News, June 18, 2024

https://www.defensenews.com/air/2024/06/18/congress-wants-to-restore-nukes-on-conventional-b-52-bombers/

A B-52 Stratofortress assigned to the 2nd Bomb Wing at Barksdale Air Force Base, La., takes off in support of a Bomber Task Force mission from Navy Support Facility, Diego Garcia, March 26, 2024. Congress is moving to restore the ability to carry and release nuclear weapons from about 30 B-52s, which were converted to only carry conventional weapons as part of the New START treaty. (Master Sgt. Staci Kasischke/Air Force)


Congress is laying the groundwork to restore nuclear weapon capabilities on roughly 30 B-52H Stratofortress bombers that had been converted to drop only conventional munitions as part of the New START arms control treaty with Russia.


Both the Senate and House defense policy bills for fiscal 2025 would require the Air Force to once again make these conventional bombers part of the nuclear triad nearly a decade after removing those capabilities to comply with limits under the New START treaty. The current treaty is set to expire in February 2026.


Lawmakers are eager to beef up the U.S. nuclear arsenal given Russia’s suspension of the treaty and China’s rapidly expanding strategic warhead production. Opponents of the measure argue that the directives will make it more difficult to negotiate a new treaty while complicating efforts to significantly extend the lifespan of the B-52 bomber fleet first introduced during the Cold War.


“The treaty expires in 2026, and the prospect of Russia coming to the table for serious arms control discussions is incredibly unlikely,” House Armed Services Chairman Mike Rogers, R-Ala., said last week upon introducing the amendment to the FY25 defense policy bill, legislation the House passed 217-199 on Friday. “We need to be prepared to face a nuclear environment without any treaty limitations.”


The House bill would require the Air Force to begin reconverting the bombers within a month after the current treaty expires and complete the restoration of their nuclear capabilities by 2029. The House passed the B-52 amendment by voice vote over opposition from Rep. Adam Smith of Washington, the top Democrat on the Armed Services Committee.


“The Department of Defense is not interested in doing this,” said Smith. “What they’re interested in doing is investing in the B-21, which is the next generation nuclear-capable bomber. This would cost a great deal of money. Also, they’re currently trying to extend the life of a number of B-52s out to 2050, which they think they can do. This would be another added expense to that.”


The Senate Armed Services Committee voted 22-3 on Friday to advance its version of the bill with a similar provision directing the restoration of nuclear capabilities across the entire B-52 fleet.


The Air Force’s 76 B-52s are the oldest bombers in its fleet and have been flying since the early 1960s. During the Cold War, the Air Force flew nuclear-armed Stratofortresses along the edge of Soviet airspace.


Today, it remains one of the key elements of the U.S. nuclear triad, and is capable of carrying the AGM-86B air-launched cruise missile, or ALCM, nuclear weapon.



The weapon systems officer station in the belly of a B-52H Stratofortress contains the controls to release the conventional — and in some cases, nuclear — weapons the six-decade-old bomber can carry. (Stephen Losey/Defense News)



Not all B-52s have that capability. The Air Force in 2015 began removing nuclear capabilities from about 30 B-52Hs to comply with New START requirements.


The Senate ratified New START in 2010. The treaty limits both countries to 1,550 deployed warheads. Although Washington and Moscow agreed to extend the treaty for five years in 2021, Russia suspended its participation in New START in 2023 amid heightened tensions with NATO over its invasion of Ukraine.


Air Force Global Strike Command declined to comment about the potential restoration of nuclear capabilities to the rest of the B-52 fleet.


Mark Gunzinger, a former B-52 pilot and director of future concepts and capability assessments at the Mitchell Institute for Aerospace Studies, said that if it does happen, the reconversions would probably take place during depot maintenance at Tinker Air Force Base in Oklahoma, as the B-52 fleet receives top-to-bottom upgrades.


Later this decade, the Air Force will begin a sweeping overhaul of the B-52 fleet, giving the six-decade-old bombers new engines, radar, avionics, digital cockpit displays, wheels and brakes, and other improvements.


The modernization is so significant that the service plans to redub these bombers the B-52J. The service eventually plans to have a fleet of two bombers, with the B-52J flying alongside the new B-21 Raider once the Air Force retires the B-1 Lancer and B-2 Spirit.


Deployed warheads

President Joe Biden’s arms control adviser Pranay Vaddi told the annual Arms Control Association conference in Washington this month that the U.S. has reached out to Russia about negotiating a follow-on agreement to New START but that Moscow has been unwilling to engage.


He said the Biden administration does not currently plan to increase the number of deployed warheads, though those decisions would be contingent on Russian and Chinese actions ahead of New START’s expiration.


“The reasons for having an increase in your day-to-day deployed nuclear weapons has to be pretty compelling for a decision to be made to do that,” said Vaddi. “One of the main triggers for that or the latest indicators that we have to pay attention to is what the [People’s Republic of China] ends up doing.”


“Those are important considerations for us to bear in mind as we march toward February 1, 2026.”


The U.S. deploys some 1,770 strategic nuclear warheads while Russia deploys around 1,822, according to the Nuclear Threat Initiative. China currently has around 500 operational warheads and the Pentagon expects Beijing will reach 1,500 by 2035.


Daryl Kimball, the executive director of the Arms Control Association, argued the B-52 amendment and other measures in the defense bill could make negotiating a follow-up treaty with Russia more difficult.


“This provision as well as some other provisions that are in the bills that purpose steps to increase the number of deployed strategic nuclear weapons are extremely premature, counterproductive and – given the skyrocketing cost of the existing nuclear weapons modernization program – they’re cost prohibitive,” Kimball told Defense News. “Some members of Congress unnecessarily panic and are looking for ways to increase the US stockpile without a clear national security rationale.”


Another provision in the Senate defense policy bill from Sen. Deb Fischer of Nebraska, the top Republican on the Strategic Forces panel, would require a plan to develop an additional 50 Sentinel Intercontinental Ballistic Missiles on top of 400 ICBMs already deployed.


Gunzinger said that with Russia no longer adhering to the New START treaty, it makes sense to bolster the B-52 fleet’s nuclear capabilities given the potential threats the United States could face from China and Russia, as well as Iran and North Korea.


“We’re now facing a situation where there’s two nuclear peers,” Gunzinger told Defense News. “We have a nuclear triad that’s sized for a single nuclear peer, Russia.”


Gunzinger said the restoration could probably be done without much difficulty. The necessary wiring is probably still in place, he said, and physical components that had been removed could be re-installed.


“It’s doable, and that’s the beauty of maintaining bombers that can be re-equipped with the appropriate [nuclear weapons] components,” he said. “It’s a hedge against future uncertainty, and we are now in a future where it’s not one that we expected, even just a few short years ago.”




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