The U.S. Air Force has officially authorized the use of two-piece flight suits while on duty.
Starting immediately, the two-piece flight suit — otherwise known as the two-piece flight duty uniform, or “2PFDU” — is authorized to be worn in both garrison and deployed locations, the service said in a news release April 22, 2019.
“The 2PFDU continues an effort to provide airmen with improved form, fit and function to perform their duties in any environment,” the release states. “Squadron commanders will now have the flexibility to make combat uniform decisions based on what is best for their airmen to meet mission requirements.”
Last week, Military.com spoke with Maj. Saily Rodriguez, the female fitment program manage officer for the human systems program office within the Air Force Life Cycle Management Center, about upgrading current fighter pilot and aircrew flight suits, which are typically a one-piece garment for men and women.
U.S. Air Force demo pilots walk off the flightline during the Heritage Flight Training and Certification Course at Davis-Monthan Air Force Base, Ariz., Feb. 28, 2019.
(U.S. Air Force photo by Jensen Stidham)
Advantages of a two-piece suit include greater ease in using the bathroom and improved overall comfort, Rodriguez said.
Along with meeting safety regulations, a two-piece flight suit, to be comprised of a standard top and bottom, would have to accommodate the needs of all aircrew members, she said.
The Air Force on April 23, 2019, said the traditional, one-piece flight duty uniform (FDU) will continue to be an option for aircrew.
A two-piece uniform has already been in use in the Air Force for those flying cargo airlift or helicopters.
The service in 2017 said that airmen flying these aircraft — anything aside from a fighter and without an ejection seat — had begun wearing the Army Aircrew Combat Uniform, known as the Airman Aircrew Combat Uniform in the Air Force, or the A2CU.
First Lt. Kayla Bowers, a 74th Expeditionary Fighter Squadron A-10 Thunderbolt II pilot, looks out of the cockpit of her aircraft.
(U.S. Air Force photo by Staff Sgt. Joe W. McFadden)
The uniform looks very much like the Air Force’s Operational Camouflage Pattern, or OCP. Commanders across the force had begun giving some airmen the option to wear the A2CU as a duty uniform during training or while deployed.
Giving airmen the option to wear the 2PFDU “aligns with the traditional FDU, elevating the significance of squadron focus and identity, which supports [Chief of Staff of the Air Force Gen David Goldfein’s] intent to revitalize squadrons,” Lt. Gen. Mark D. Kelly, deputy chief of staff for Air Force operations, said in the release.
This article originally appeared on Military.com. Follow @militarydotcom on Twitter.
As the US Army pursues accelerated modernization to meet the potential future demands of high-intensity warfighting against top adversaries like Russia and China, the service is searching for a new next-generation combat vehicle to replace the Bradley Infantry Fighting Vehicle produced by BAE Systems.
The Next-Generation Combat Vehicle (NGCV) program is the second highest priority for the recently-established Army Futures Command. This brand new four-star command is dedicated to the research and development of future weapons systems for this new era of great power competition.
“The Russians and the Chinese have used the last 15 years to modernize their forces,” Brig. Gen. Ross Coffman, director of the NGCV cross-functional team, told reporters Oct. 9, 2018, “We need to do the same.”
Replacing the Bradley Fighting Vehicle is the top priority for the Next-Generation Combat Vehicle program
The primary focus right now is replacing the Bradley with an Optionally Manned Fighting Vehicle (OMFV), although the requirements are still in the works, with Army officials noting that “all options are on the table.” The Army’s NGCV cross-functional team is looking for something lethal, survivable, and most importantly upgradeable so that it can continue to meet the Army’s needs for year’s to come, NGCV team leaders explained Tuesday at the 2018 Association of the United States Army conference in Washington, DC.
The Army appears to be pursuing a vehicle that can be reconfigured for different missions, has an outstanding power-to-weight ratio for intensity-based and technological upgrades and modifications, and can wage war in both urban and rural environments to provide a deterrent force in Europe and beyond.
The program is expected to issue an official request for proposals in 2018, and companies will have around six months to prepare their offers. The NGCV program expects to field its new OMFV in 2026. This Futures Command team is also looking at a new Armored Multi-Purpose Vehicle (AMPV), Mobile Protected Firepower (MPF) option, Robotic Command Vehicle (RCV), and replacement for the M1 Abrams tank, but the expected delivery dates for these projects are farther out.
There are three full-scale OMFV concepts put foward by BAE Systems, Raytheon, and Rheinmetall, and General Dynamics on display at AUSA 2018, although there may be more potential designs later on when the official request for proposals is sent out. While the three concepts on the floor offer many similar features, each vehicle brings something unique to the table.
The CV90 Mark IV.
Characterizing it as a conversation starter, BAE Systems is offering the latest version of its proven combat vehicle — the CV90 Mark IV
There are 15 variants of the Combat Vehicle (CV) 90 in service in seven nations, so BAE Systems is coming to the table with the latest iteration of a proven vehicle. “We’re pretty proud of this vehicle,” a spokesman for the company told Business Insider at AUSA. “We brought this as our best way to start a conversation with the Army and help the Army help us figure out what it is that soldiers need.”
The strengths of this vehicle, according to its makers, include its growth potential and the mission-specific modularity and flexibility.
“On the left and right sides of it are boxes, they look like they are bolted on, those are weapons station modules,” the spokesman explained, “On [the left] side, you have a Spike missile module connected to the vehicle, and on the right side, you have a 7.62 coaxial machine gun with 2,000 ready rounds in the box.”
Those modular systems are all on attachment points, meaning that they could be swapped out for other modules, such as a Mark 19 grenade launcher, to suit the mission at hand. “It gives the Army, the unit commander, and the vehicle commander the maximum flexibility they need based on the mission,” he said, calling it “sexy.”
In addition to this flexibility, there is also growth potential in the vehicle weight. The vehicle has a maximum weight of 40 tons. The floor model weighed around 30 tons, allowing for the addition of extra armor and weapons systems should the intended mission require these modifications.
The CV90 Mark IV comes with a number of other potentially desirable features and capabilities as well
The vehicle’s 35 mm cannon can be easily modified should the Army show an interest in a 50 mm main gun, something Col. Jim Schirmer, the project lead for the NGVC, told reporters on Oct. 9, 2018, that the Army is seriously considering.
The BAE Systems vehicle also features a drive-by-wire system for manned and unmanned missions, advanced data transfer capabilities, enhanced survivability as it sits low to the ground (hard to see, hard to hit), advanced 360 surveillance, smart targeting systems, airburst munitions for counter-drone warfare, and active protection systems that can be modified as the Army presents a clearer picture of what it expects.
the Lynx KF41 Infantry Fighting Vehicle.
Raytheon and Rheinmetall joined forces to create the Lynx KF41 Infantry Fighting Vehicle, presenting it at AUSA 2018 as a ready-right-now OMFV option.
Described as a “not business as usual” project, the Lynx KF 41 Infantry Fighting Vehicle is the byproduct of a partnership between Rheinmetall, which has an extensive knowledge of vehicles, and Raytheon, a company that excels at integrated electronic systems.
The Raytheon team emphasized modularity for mission-specific modifications in a brief discussion with BI on the floor at AUSA 2018. “The whole thing is very innovative. You can take this configuration, remove the top, make it into another configuration, and you can do that overnight,” Kim Ernzen, vice president of Land Warfare Systems at Raytheon, explained.
“With a 10-ton crane, you can lift the roof plate and the turret off the base chassis, and you can re-roll the vehicle,” Philip Tomio, the vice president of strategy and marketing for the Vehicle Systems Division at Rheinmetall, said. “You can turn it into a command post, an ambulance, a repair and recovery vehicle, a joint fires reconnaissance variant. You have a number of options.”
She revealed to BI that during recent trials, crews were able to change the configuration in roughly three hours.
Raytheon and Rheinmetall are promising a “modern fighting vehicle that will keep US soldiers far ahead of battlefield threats for decades to come.”
The survivability of the vehicle can be changed in accordance with the demands of the fighting environment. With roughly 20 tons of configurable payload, the chassis can support additions up to 55 tons for high-intensity combat against an adversary like the Russians. And the main gun can be modified from a 35 mm cannon to a 50 mm gun as needed.
The Lynx IFV supports up to nine dismounts with a three-man crew, as well as as next-generation thermal sights, Coyote unmanned aircraft, active protection systems to counter a variety of asymmetric threats, a fully-integrated situational awareness sensor suite, and an extended-range TOW missile system, among other features.
The spokespeople for this OMFV project repeatedly stressed that the Lynx would be manufactured in the US, supporting the US industrial base and creating jobs. But perhaps more importantly, the vehicle is a finished product, not a concept, that could be ready to go on a moment’s notice.
General Dynamics Griffin armored fighting vehicle.
General Dynamics brought its Griffin III demonstrator, a combat system featuring elements of the Ajax armored vehicle used in the UK
Produced by the company the makes the M1 Abrams tank, also slated for replacement, General Dynamics’ Griffin III features lethality, modularity, and growth options, among other capabilities.
In terms of lethality, the modular turret features a 50 mm main gun with the option to modify the weapon to a 30 mm cannon if necessary and the ability to fire at an 85 degree angle, a capability requested by the Army for urban combat. The 50 mm gun is significantly more powerful than the Bradley’s current 25 mm cannon.
Supporting a squad with five to eight people and a two-to-three-man crew, the newest evolution of the Griffin I and II is, according to General Dynamics, focused on “adaptability” through the company’s emphasis on a modifiable, open architecture. At the same time, the vehicle features a wide variety of integrated systems with a common operating system, specifically active protection systems, laser warning systems, 360-degree surround view, and a deepstrike package, Mike Peck, the director of enterprise business development at General Dynamics told BI at AUSA 2018.
“All of that is integrated in there. You don’t have to keep adding boxes to the vehicle,” he explained.
The Griffin is said to have a lot of “unique” features designed to trigger additional conversations with the Army going forward.
The Griffin III is meant to satisfy the Army’s vague requirements for the OMFV as they are right now, but it could be changed.
“We wanted to show them what they asked for and then ask, ‘Do you like it, or would you change something?'” Peck explained to BI. “If so, the next iteration — Griffin IV — will have those modifications on it.”
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
The 18,000 Marines and sailors who landed on the island of Betio in the Tarawa atoll in the Pacific Ocean early on Nov. 20, 1943, waded into what one combat correspondent called “the toughest battle in Marine Corps history.”
After 76 hours of fighting, the battle for Betio was over on November 23. More than 1,000 Marines and sailors were killed and nearly 2,300 wounded. Four Marines received the Medal of Honor for their actions — three posthumously.
Of roughly 4,800 Japanese troops defending the island, about 97% were killed. All but 17 of the 146 prisoners captured were Korean laborers.
“Betio would be more habitable if the Marines could leave for a few days and send a million buzzards in,” Robert Sherrod, a correspondent for Time, wrote after the fighting.
The victory at Tarawa “knocked down the front door to the Japanese defenses in the Central Pacific,” Adm. Chester Nimitz, commander in chief of the Pacific fleet, said afterward.
Four Marines carry a wounded Marine along the cluttered beach to a dressing station for treatment after fighting on Tarawa eased.
(US Marine Corps Photo)
Hundreds were left unidentified and unaccounted for
Because of environmental conditions, remains were quickly buried in trenches or individual graves on Betio, which is about a half-square-mile in size and, at the time of the battle, only about 10 feet above sea level at its highest point.
Navy construction sailors also removed some grave markers as they hurriedly built runways and other infrastructure to help push farther across the Pacific toward Japan.
The US Army Graves Registration Service came after the war to exhume remains and return them to the US, but its teams could not find more than 500 servicemen, and in 1949, the Army Quartermaster General’s Office declared those remains “unrecoverable,” telling families that those troops were buried at sea or in Hawaii as “unknowns.”
Over the past 16 years, however, Betio, now part of Kiribati, has yielded some of the largest recoveries of remains of US service members.
That work has been led by History Flight, a Virginia-based nonprofit and Defense POW/MIA Accounting Agency partner that’s dedicated to finding and recovering missing US service members.
“History Flight was started in 2003, and we’ve been researching the case history of Tarawa since 2003, but we started working out there 2008,” Katherine Rasdorf, a researcher at History Flight, told Business Insider on Thursday. “We had to do all the research and analysis first before we went out there.”
The first individual was found in 2012. That was followed by a lost cemetery in 2015 and two more large burial sites in 2017 and 2019, Rasdorf said.
In 2015, History Flight found 35 sets of remains at one site, including those of US Marine 1st Lt. Alexander Bonnyman, Jr., who received the Medal of Honor for his actions during the battle.
In July 2017, the organization turned over 24 sets of remains to the Defense POW/MIA Accounting Agency for identification.
Osteologists with History Flight excavate a grave site from the battle of Tarawa at Republic of Kiribati, July 15, 2019.
Those are the largest recoveries of missing US service personnel since the Korean War.
Using remote sensing, cartography, aerial photography, and archaeology, History Flight has recovered the remains of 309 service members from Tarawa, where the organization maintains an office and a year-round presence, Mark Noah, president of History Flight, told a House Committee on Oversight and Reform in a hearing on November 19.
Seventy-nine of those discoveries were made during the 2019 fiscal year, Noah said, adding that History Flight’s recoveries are 20% of the DoD’s annual identifications.
Archaeologists with History Flight excavate a grave site from the battle of Tarawa, in the Republic of Kiribati, July 15, 2019.
(US Marine Corps photo Sgt. Melanye Martinez)
“Many of them were underneath buildings, underneath roads, and houses,” Noah told lawmakers of remains on Betio, noting that they are often discarded, covered up, and accidentally disinterred — the first two Marines his organization recovered on Tarawa in April 2010 were displayed on a battlefield tour guide’s front porch.
Today, 429 servicemen killed at Betio remain unaccounted for, Rear Adm. Jon Kreitz, deputy director of the DPAA, said when at least 22 servicemen returned to the US in July.
Hero’s welcome for those returned home
Those discoveries have allowed the sailors and Marines who died at Tarawa to finally return home.
Joseph Livermore, a 21-year-old Marine private when he was killed by a Japanese bayonet on November 22, 1943, was given a hero’s welcome in his hometown of Bakersfield, California, where his remains were buried on November 15.
A thousand people lined the streets for Livermore’s return, Noah said.
Service members with the Defense POW/MIA Accounting Agency fold flags on transfer cases on a C-17 Globemaster, in Tarawa, Kiribati, Sept. 27, 2019.
Pvt. Channing Whitaker, an 18-year-old from Iowa killed in a Japanese banzai attack on the second day of the battle, was buried with full military honors in Des Moines on November 22. His remains returned to the US in July.
In History Flight’s experience, more than 50% of those recovered had living brothers, sisters, and children at their funerals, Noah told lawmakers this week.
“The recovery of America’s missing servicemen is a vital endeavor for their families and for our country. What we are accomplishing in recovering the missing is putting a little bit of America back into America,” Noah said.
An island nation ‘facing annihilation’
While hundreds of servicemen likely remain on Betio, environmental conditions there may soon make finding them even harder.
Kiribati, one of the most isolated countries in the world, is also one of many Pacific Island nations likely to be unlivable in a few decades due to the effects of climate change.
More than half of Kiribati’s nearly 120,000 residents live on South Tarawa, just east of Betio. Rising sea levels are a particular threat to densely populated country. Exceptionally high tides and sea-water incursions threaten the fresh water under the atolls.
Many of the graves located by History Flight are below the water table, meaning workers had to pump water from the sites each day to excavate.
“When it’s rainy season, it’s very difficult to do archeology, because the locations fill with water and we have to come up with drainage solutions that are not impacting the highly populated areas and … reroute [the water] to places where it’s not infringing on their clean drinking water,” Rasdorf said.
On the whole, History Flight’s day-to-day work has not been greatly affected by changing environmental conditions, Rasdorf said, but others in Kiribati have called for drastic action in response to the threat of climate change.
Anote Tong, Kiribati’s president from 2003 to 2016, bought nearly 8 square miles of land to potentially relocate to in Fiji, about 1,200 miles away from Kiribati, for nearly million in 2014.
His purchase was decried by some as a boondoggle and alarmist, and his successor took office in 2016 planning to shift priorities and making no plans for people to leave. But Tong continues to sound the alarm.
There are many unfounded superstitions within the military. Don’t eat Charms candy. Don’t whistle on a Navy vessel. Pilots won’t take off without being given a thumbs up. The list goes on.
Many of these superstitions have traceable roots that run back to a time when someone did something and terrible results followed, but there’s seldom any empirical evidence behind the practices. To that end, Marines and Marine veterans from all eras and battlefields will all attest to one fruit being such bad luck that even uttering its name will cause them to freak out.
This fruit is, of course, the apricot.
Vietnam was bad enough. Even if you liked the taste of the fruit, you probably shouldn’t do anything to make everyone ostracize you.
While most troops tend to stay away from apricots — typically referred to as ‘cots, forbidden fruits, or A-fruits, to avoid being jinxed by uttering its true name — the biggest contributors to this superstition are Marine tankers and Marines on Amphibious Assault Vehicles.
Officially, the myth began in WWII. Many of the AAVs that were hopping around the islands of the Pacific would carry the fruit, as it was often found in rations. All the AAVs that were destroyed with their crewmembers inside were said to have a single piece of cargo in common: apricots. Of course, there isn’t much proof to back up this statement, as many vehicles that didn’t carry the forbidden fruit met the same fate.
The superstition continued into the Vietnam War. There, Marines were hesitant about even being near someone eating a ‘cotbecause they thought it meant that rockets or artillery were soon incoming. The belief was so strong that Marines would often force someone out of the tent if they tempted fate by biting into one of the stone fruits.
You still won’t find any of them in a Marine Corps chow hall. Just grab an apple, they taste better and probably maybe won’t cause everything to explode or break down. Probably.
(U.S. Marine Corps photo by Cpl. Janessa K. Pon)
It was also said that ‘cots were to blame for many Marines vehicles breaking down during the Persian Gulf War and the early days of the Global War on Terrorism before they were all but banned by the military overseas.
Until apricots were removed from MREs in 1995, many Marine tankers would opt out of bringing MREs into their vehicles altogether on the off chance that the A-fruit was hiding in one of the sealed bags. The myth continues to this day, and most Marines won’t even utter the name of the fruit, let alone touch them.
Scientists have reproduced in the lab how the ingredients for life could have formed deep in the ocean 4 billion years ago. The results of the new study offer clues to how life started on Earth and where else in the cosmos we might find it.
Astrobiologist Laurie Barge and her team at NASA’s Jet Propulsion Laboratory in Pasadena, California, are working to recognize life on other planets by studying the origins of life here on Earth. Their research focuses on how the building blocks of life form in hydrothermal vents on the ocean floor.
To re-create hydrothermal vents in the lab, the team made their own miniature seafloors by filling beakers with mixtures that mimic Earth’s primordial ocean. These lab-based oceans act as nurseries for amino acids, organic compounds that are essential for life as we know it. Like Lego blocks, amino acids build on one another to form proteins, which make up all living things.
A time-lapse video of a miniature hydrothermal chimney forming in the lab, as it would in early Earth’s ocean. Natural vents can continue to form for thousands of years and grow to tens of yards (meters) in height.
“Understanding how far you can go with just organics and minerals before you have an actual cell is really important for understanding what types of environments life could emerge from,” said Barge, the lead investigator and the first author on the new study, published in the journal Proceedings of the National Academy of Sciences. “Also, investigating how things like the atmosphere, the ocean and the minerals in the vents all impact this can help you understand how likely this is to have occurred on another planet.”
Found around cracks in the seafloor, hydrothermal vents are places where natural chimneys form, releasing fluid heated below Earth’s crust. When these chimneys interact with the seawater around them, they create an environment that is in constant flux, which is necessary for life to evolve and change. This dark, warm environment fed by chemical energy from Earth may be the key to how life could form on worlds farther out in our solar system, far from the heat of the Sun.
“If we have these hydrothermal vents here on Earth, possibly similar reactions could occur on other planets,” said JPL’s Erika Flores, co-author of the new study.
Barge and Flores used ingredients commonly found in early Earth’s ocean in their experiments. They combined water, minerals and the “precursor” molecules pyruvate and ammonia, which are needed to start the formation of amino acids. They tested their hypothesis by heating the solution to 158 degrees Fahrenheit (70 degrees Celsius) — the same temperature found near a hydrothermal vent — and adjusting the pH to mimic the alkaline environment. They also removed the oxygen from the mixture because, unlike today, early Earth had very little oxygen in its ocean. The team additionally used the mineral iron hydroxide, or “green rust,” which was abundant on early Earth.
The green rust reacted with small amounts of oxygen that the team injected into the solution, producing the amino acid alanine and the alpha hydroxy acid lactate. Alpha hydroxy acids are byproducts of amino acid reactions, but some scientists theorize they too could combine to form more complex organic molecules that could lead to life.
“We’ve shown that in geological conditions similar to early Earth, and maybe to other planets, we can form amino acids and alpha hydroxy acids from a simple reaction under mild conditions that would have existed on the seafloor,” said Barge.
Barge’s creation of amino acids and alpha hydroxy acids in the lab is the culmination of nine years of research into the origins of life. Past studies, which built on the foundational work of co-author and JPL chemist Michael Russell, looked at whether the right ingredients for life are found in hydrothermal vents, and how much energy those vents can generate (enough to power a light bulb). But this new study is the first time her team has watched an environment very similar to a hydrothermal vent drive an organic reaction. Barge and her team will continue to study these reactions in anticipation of finding more ingredients for life and creating more complex molecules. Step by step, she’s slowly inching her way up the chain of life.
Laurie Barge, left, and Erika Flores, right, in JPL’s Origins and Habitability Lab in Pasadena, California.
This line of research is important as scientists study worlds in our solar system and beyond that may host habitable environments. Jupiter’s moon Europa and Saturn’s moon Enceladus, for example, could have hydrothermal vents in oceans beneath their icy crusts. Understanding how life could start in an ocean without sunlight would assist scientists in designing future exploration missions, as well as experiments that could dig under the ice to search for evidence of amino acids or other biological molecules.
Future Mars missions could return samples from the Red Planet’s rusty surface, which may reveal evidence of amino acids formed by iron minerals and ancient water. Exoplanets — worlds beyond our reach but still within the realm of our telescopes — may have signatures of life in their atmospheres that could be revealed in the future.
“We don’t have concrete evidence of life elsewhere yet,” said Barge. “But understanding the conditions that are required for life’s origin can help narrow down the places that we think life could exist.”
This research was supported by the NASA Astrobiology Institute’s JPL Icy Worlds team.
Featured image: An image of Saturn’s moon Enceladus backlit by the Sun, taken by the Cassini mission. The false color tail shows jets of icy particles and water that spray into space from an ocean that lies deep below the moon’s icy surface. Future missions could search for the ingredients for life in an ocean on an icy moon like Enceladus.
The developers of one of China’s newest and most advanced combat drones have released a new video showcasing its destructive capabilities.
The video was released just one week prior to the start of the China International Aviation & Aerospace Exhibition in Zhuhai, Guangdong, China, where this drone made its debut in 2016.
China Aerospace Science and Technology Corporation’s CH-5 combat drone, nicknamed the “Air Bomb Truck” because it soars into battle with 16 missiles, is the successor to the CH-4, which many call the “AK-47 of drones.”
Resembling General Atomics’ MQ-9 Reaper drone, the developers claim the weapon is superior to its combat-tested American counterpart, which carries four Hellfire missiles and two 500-pound precision bombs. The Reaper is one of America’s top hunter-killer drones and a key weapon that can stalk and strike militants in the war on terror.
The CH-5 “can perform whatever operations the MQ-9 Reaper can and is even better than the US vehicle when it comes to flight duration and operational efficiency,” Shi Wen, a chief CH series drone designer at the China Academy of Aerospace Aerodynamics, told the China Daily two years ago.
But, while the CH-5 and the MQ-9 may look a lot alike, it is technological similarity, not parity. The Reaper’s payload, for instance, is roughly double that of China’s CH-5. And, while China’s drone may excel in endurance, its American counterpart has a greater maximum take-off weight and a much higher service ceiling.
The sensors and communications equipment on the Chinese drone are also suspected to be inferior to those on the MQ-9, which in 2017 achieved the ability to not only wipe out ground targets but eliminate air assets as well.
Nonetheless, these systems can get the job done. The CH-4, the predecessor to the latest CH series drone, has been deployed in the fight against the Islamic State.
China has exported numerous drones to countries across the Middle East, presenting them as comparable to US products with less restrictions and for a lower price.
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
For the first time ever, measurements from NASA Earth-observing research satellites are being used to help combat a potential outbreak of life-threatening cholera. Humanitarian teams in Yemen are targeting areas identified by a NASA-supported project that precisely forecasts high-risk regions based on environmental conditions observed from space.
“By joining up international expertise with those working on the ground, we have for the very first time used these sophisticated predictions to help save lives and prevent needless suffering for thousands of Yemenis,” said Charlotte Watts, chief scientist with the United Kingdom’s Department for International Development.
Cholera is a disease caused by consuming food or water contaminated with a bacterium called Vibrio cholerae. The disease affects millions of people every year, resulting in severe diarrhea and even death. It remains a major threat to global health, especially in developing countries, such as Yemen, where access to clean water is limited.
Starting this spring, the British government and international aid groups in Yemen began using these new cholera forecasts to target their work in reducing cholera risk. That work includes promoting good hygiene to prevent the spread of the water-borne disease and distributing hygiene and cholera treatment kits. The results to date suggest the forecast model has the potential to fundamentally change how the international community addresses cholera.
The research on forecasting cholera outbreaks funded by NASA’s Applied Sciences Program is being led by hydrologist and civil engineer Antar Jutla at West Virginia University, Morgantown, along with Rita Colwell and Anwar Huq, microbiologists from the University of Maryland, College Park.
The NASA forecast tool divides the entire country of Yemen into regions about the size of a typical U.S. county, and predicts the risk of cholera outbreaks in each region. To calculate the likelihood of an outbreak, the science team runs a computer model that combines satellite observations of environmental conditions that affect the cholera bacteria with information on sanitation and clean water infrastructure.
The predicted cholera risk based on analysis and satellite data in Yemen, June 2017. Blue color indicates low risk of cholera while red color indicates high risk of cholera.
The actual number of cholera cases in June 2017. The red area represent reported cholera cases.
In 2017, the model achieved 92 percent accuracy in predicting the regions where cholera was most likely to occur and spread in Yemen that year, even identifying inland areas that are not usually susceptible to the disease but suffered outbreaks. The Yemen cholera outbreak was the world’s worst in 2017, with more than 1.1 million suspected cases and more than 2,300 deaths, according to the World Health Organization.
“The model has done an excellent job in Yemen detecting triggers of cholera outbreaks,” said Jutla, “but there is still a lot of work we need to do to have this forecast model give accurate predictions everywhere.”
International humanitarian organizations took notice. This January, Fergus McBean, a humanitarian adviser with the U.K.’s Department for International Development, read an article about the NASA-funded team’s 2017 results and contacted them with an ambitious challenge: to create and implement a cholera forecasting system for Yemen, in only four months.
“It was a race against the start of rainy season,” McBean said.
The U.S. researchers began working with U.K. Aid, the U.K. Met Office, and UNICEF on the innovative approach to using the model to inform cholera risk reduction in Yemen.
In March, one month ahead of the rainy season, the U.K. international development office began using the model’s forecasts. Early results show the science team’s model predictions, coupled with Met Office weather forecasts, are helping UNICEF and other aid groups target their response to where support is needed most.
“This ground-breaking initiative is a testament to the importance of interdisciplinary and multi-agency efforts to improve disease preparedness and response,” said John Haynes, program manager for health and air quality applications in NASA’s Earth Science Division, at the agency’s headquarters in Washington.
McBean believes in this new approach. “We are confident acting on the model’s predictions this year. We know that acting early is a more effective way of operating and is likely to result in a much better outcome for people.”
Colwell, who compared the 2017 Yemen results to passing the first stage of a three-stage drug trial and discovering the drug is saving the lives of a particular type of patient, said that the science team’s next step is to create global risk maps for cholera. In the same way meteorologists issue severe storms warnings, these risk maps and forecasts would allow people to prepare for and prevent outbreaks.
NASA uses the vantage point of space to understand and explore our home planet, improve lives and safeguard our future. Earth observations and information made possible by NASA form the foundation for critical environmental planning and decisions by people all over the world. The agency makes its Earth observations freely and openly available to those seeking solutions to important global issues.
Featured image: The United Nations Children’s Fund, with support from U.K. Aid, distributes clean water and information about cholera to prevent outbreaks of the disease in Yemen. Humanitarian teams in Yemen are targeting areas identified by a NASA-supported project that precisely forecasts high-risk regions based on environmental conditions observed from space.
This article originally appeared on NASA. Follow @NASA on Twitter.
Thousands of cryptocurrency enthusiasts are taking part in an international scavenger hunt to find clues that promise to lead the winners to a prize of $1 million in bitcoin.
It’s called Satoshi’s Treasure, and it’s a game that’s part logic puzzle and part scavenger hunt, with clues found in both the digital and physical worlds. Each clue will reveal a fragment of the digital key used to access the game’s bitcoin wallet, and the winner will be the first person or team to put together at least 400 of these fragments to be able to claim the $1 million worth of bitcoin, according to cryptocurrency news site CoinDesk.
Nearly 60,000 people have signed up on the Satoshi’s Treasure website to receive notifications about new clues and game updates, CoinDesk reported May 12, 2019.
The game is being run and funded by a group of crypto investors. One of the co-creators of Satoshi’s Treasure, crypto investor Eric Meltzer, told CoinDesk that no single person knows all the locations of the clues or all of the key fragments.
“There are so many unknowns in this game that we kind of just want to see what happens,” said Meltzer, founding partner of crypto investment firm Primitive Ventures. “Part of the meta game that I think people are going to like is trying to figure out who is behind this.”
Game organizers say that since the first clues were released on April 16, 2019, many teams have been formed to work together toward finding key fragments and solving the game. A team organizing tool called Ordo has already been created, which will help to properly credit those who solve clues, and fairly divide up the id=”listicle-2637018554″ million prize at the end for the winning team.
According to the Satoshi’s Treasure website, the hunt is intended to “test the mettle of anyone who wishes to add some excitement to their lives.” The game has a simple set of rules that revolve around the tenant of “do no harm” — keys will not be hidden on private properties, no clues will require any destruction, and participants need to “always show respect” for fellow hunters.
CoinDesk reports that teams comprise of not only veteran crypto users, but also those new to bitcoin and those who are in it for the thrill of the hunt. The game’s creators say Satoshi’s Treasure prioritizes accessibility to anyone who wants to participate. For example, the latest clue was found on physical business cards distributed at the Magical Crypto Conference this weekend in New York.
“I’d say Satoshi’s Treasure is so exciting because it’s the pure joy of a treasure hunt,” crypto investor Nic Carter told CoinDesk. “It’s global and anyone can participate.”
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
Back pain is something that 80% of adults are expected to experience at some point in their life. For some, it comes much, much earlier — and the advantages are endless!
It’s no secret that those who engage in manual labor from a young age are more susceptible to back pain. It makes sense then, that young vets are oh-so-lucky enough to be some of the chosen few with significant back pain while barely being young enough to crack open a cold one (legally).
Here are some of the fun benefits young back pain sufferers all experience!
You know what kinda day it’s gonna be the night before!
Most people have to spill coffee on themselves or pour a bowl of cereal before realizing they don’t have milk before they know they’re going to have an awful day. With chronic back pain, there’s no need to wait until 7am to figure that out — you’ll know by 2am at the latest! Your unending nightmare of discomfort will let you know that tomorrow will, in fact, suck.
What a treat to know in advance!
You’ll accrue advanced stretching knowledge!
Most under-30-year-olds know how to touch their toes. Maybe they’ll occasionally grab a foot and stretch out their quads before a run. Not those with chronic back pain! Those lucky sons of guns have advanced knowledge of stretches so intricate and strange-looking it would make the author of the Kama Sutra blush.
You’ll never need another excuse to avoid helping your friend move!
This one goes without saying. Gone are the days of saying, “Oh, uh, actually dude, I have to pickup my uncle from the airport” or “I would, but I actually told my girlfriend I would take her to shop for potted plants” or the vintage classic move of waiting until the day after and hitting them with, “I JUST got this text — still need help?” Nope. Now you can just tell them straight up you can’t help. Not you “won’t.” You physically cannot.
You get a desirable “dad bod” without even trying!
Okay so there’s not a lot of people that try to have a “dad bod.” But for those who do — it can be difficult. Luckily, with chronic back pain, you can get a dad bod before you even have children! Spend hours not being able to get out of your rolly chair. Be unable to go on light jogs without immediately experiencing immobilizing muscle spasms. Then, eat away your feelings through endless bags of Cool Ranch Doritos. It’s like having the opposite of your own personal Hollywood trainer.
You get the best seat in the house to watch your friends have fun!
You’re playing basketball with your friends, you drive in for a layup, nobody touches you, and then wham: your back completely locks up on you for no reason whatsoever. Now you can’t walk, let alone play. Sucks, right? Wrong.
Now you get to sit and watch all your friends air ball uncontested 3s — from the front row! Sound too good to be true? Don’t worry, it’ll happen plenty more times!
You can do a perfect impression of the AT-ATs from ‘Star Wars!’
Impressions are hard. Star Wars impressions are especially hard. Don’t believe me? Ask literally anyone to do an impression of Yoda. It will be terrible.
But with insane chronic back pain, you can constantly walk like an AT-AT! The lumbering, stiff, slow movement will wow all your friends. You’ll get the posture of C3P0 for free, too.
People approach joining the Army as if all soldiers are the same, but there are actually a ton of different jobs recruits can enlist for. And since soldiers are willing to leave reviews on sites like Glassdoor.com, it’s easy to see which recruits might re-enlist without prompting and which will spend the next few years counting down to the end of their contract.
1. Human Resources Specialists
Human resource specialists apparently love being in the Army, giving it a rating of 4.3 out of 5. It looks like sitting behind a desk at headquarters isn’t a bad way to earn the GI Bill.
2. Psychological Operations
Psychological Operations soldiers gave their career a 4.3 as well. Multiple reviewers cited their free foreign language training and incentive pays as reasons they like their job.
Artillery has the highest rating of the combat arms branches with a 4.1. Considering the fact that they get to pull strings and make stuff go boom all day, this isn’t a huge shocker.
4. Combat Engineer
Considering the fact that combat engineers are stuck with missions like route clearance, it’s surprising that they rated their time in the Army as a 4 out of 5. But sappers are crazy like that and explosives are fun.
Helicopters are awesome, and their pilots rated serving in the Army at 3.9 out of 5. Some of the lower ratings came from OH-58 pilots who are understandably disappointed that the Army has gotten rid of their scout aircraft.
Cavlarymen cited their long work hours and the danger of combat arms as drawbacks, but the adrenaline rush, Army benefits, and working outside were huge positives. The average review was a 3.9.
Intelligence analysts gave the Army a 3.8 out of 5. In charge of collecting data from the battlefield and figuring out what the enemy is doing, these guys spend a lot of time locked in secure offices seeing photos and reports no one else gets to.
The iconic rifleman may be all over the recruiting posters, but sleeping on rocks and rucking 100 pounds of gear isn’t exactly an ideal weekend. They still gave their employer a 3.7 rating, so it must not be all bad.
Everyone loves medics, but they only rated the Army as a 3.6, so the feeling isn’t mutual. That 3.6 probably comes from their easy access to IV bags for curing hangovers, not from having to look at everyone else’s infections.
“The Hurt Locker” is a classic American war film, an Academy Award winner, and an entertaining tour de force that wowed civilian audiences when it hit theaters in 2008.
Keyword: civilian audiences. For many military viewers, the film was rife with glaring technical errors. From just about every angle — dialogue, storylines, and uniforms — the problems with the movie made it very hard for soldiers to watch without cringing nearly every minute. Of course, it’s Hollywood, and they can’t get everything right.
But it’s still fun to look back and see just how many things were wrong. We watched it and compiled a massive listing of everything (with some extra help from some real-live Army EOD techs we talked to). Maybe this could be a fun drinking game. Or, as you’ll see by how many problems there are, a very dangerous drinking game. On second thought, let’s put the beer down.
Here we go (with timestamps):
The movie starts off by introducing us to soldiers of Delta Co., with no further specifics on the exact unit. Army EOD companies aren’t called by phonetic names like “Alpha,” “Charlie,” and “Delta.” They are numbered, usually with a number in the 700s.
:30 U.S. Army soldiers are wearing the digital ACU (Army Combat Uniform) that wasn’t used until at least Feb. 2005. The setting is Baghdad in 2004. Thirty seconds in and already a really big one. Great start.
1:00 Multiple soldiers are seen with sleeves rolled up over their elbows. This is totally against Army regs, but soldiers are seen throughout the film like this.
4:20 The wagon carrying the explosives to blow the IED in place breaks down. Instead of using the claw on the robot to pick up the charges, Staff Sgt. Thompson suits up and goes to hand carry it. Not even the dumbest EOD tech would do this.
5:39 No reticle pattern is seen when Sgt. Sanborn looks through his scope, which is a Trijicon ACOG sight.
6:30 An Iraqi man gets extremely close to a soldier standing security. Moments before this, the street was bustling with onlookers and there were other soldiers and Iraqi security forces around. Now it’s totally empty, which begs the question: Why are only three soldiers left guarding this bomb?
10:28 Sgt. Sanborn seen with cuffed sleeves.
10:45 Sgt. Sanborn’s collar is popped. That’s not the style around here, man.
11:05 Sgt. 1st Class James’ dog tags are hanging out of his shirt. He’s supposed to be a staff non-commissioned officer, not a private just disregarding the regulations.
12:00 This is Baghdad 2004, when the insurgency is really starting to get rough, and we have a single Humvee rolling through Baghdad all alone. Seems a bit far-fetched, although an EOD tech did tell us it’s possible.
13:40 Sgt. 1st Class James is wearing an old green Battle Dress Uniform camouflage helmet and body armor. Every other soldier wears the matching ACU gear (although this is still incorrect for the time period). He also has both his sleeves rolled up past his elbows.
13:45 Sgt. Sanborn is wearing silver designer sunglasses. Glasses are required to be brown or black, and non-reflective.
14:40 A bunch of soldiers just abandon their Humvee in the middle of Baghdad? And it’s still running? What the hell?
15:28 James greets other soldiers with “morning, boys” to which one responds “Sir.” Soldiers only say “sir” or “ma’am” to officers, not enlisted ranks. There’s also a soldier seen wearing shoulder armor, which wasn’t introduced until 2007/2008.
15:45 A soldier asks James if he wants to talk to an informant who apparently knows the location of the IED and more details about it. But he doesn’t care to talk to him. Why would an EOD tech ignore having more information about what he’s dealing with?
18:15 James pops a smoke grenade to “create a diversion.” Smoke grenades are to cover movement, not to create a diversion. If no one was looking at you before, they are certainly looking at you now.
18:22 I know he’s supposed to be a “rebel” but when fellow soldiers are screaming frantically over the radio and asking you what is going on, you should probably answer.
18:38 He finally responds over the radio.
18:55 Seven to eight soldiers are all standing around this Humvee in the middle of the street, not providing any security or looking for potential threats.
18:56 A soldier in the turret is not even covering his sector of fire and doesn’t even have the .50 caliber pointed down the main alleyway.
19:05 Another soldier is seen wearing designer sunglasses.
19:06 An Iraqi-driven car just drives right through a bunch of soldiers who don’t attempt to stop it, fire warning shots, or do anything other than jump out of the way.
19:19 The car doesn’t stop for seven soldiers pointing M-16 rifles at him, but it does stop because James points his pistol at him. Makes sense.
20:30 James fires shots around the car, hits and destroys the windshield, then points his gun at the Iraqi’s head and tells him to get back. You would think he would want to search this guy or his car before sending him right back into seven soldiers who could be potentially blown up by a vehicle-born improvised explosive device (VBIED).
24:40 Yes, ok. Let’s just pull up on the big red wires holding together six bombs (and does this even make sense from an enemy perspective? Why would you daisy-chain all these huge bombs to potentially kill one guy? One bomb is gonna do it).
27:14 Spc. Eldridge is seen playing “Gears of War” on an Xbox 360. The Xbox didn’t come out until 2005, and “Gears of War” didn’t come out until 2006. But the setting is supposed to be Baghdad in 2004.
29:02 A soldier is seen walking by with sleeves rolled up over his elbows and with a white or silver watch. Very tactical.
29:59 Oh, of course! Another soldier with rolled-up sleeves.
31:39 Five soldiers just stand out in the middle of street and open fire on an enemy sniper. Instead of, you know, getting behind some cover first.
32:31 James uses a single fire extinguisher to put out a car that is fully engulfed in flames. He’s like Rambo with unlimited ammo here. And why are you sticking around a car that is probably rigged with explosives that is on fire?!!?!
34:50 James puts on a headset that is supposedly a radio. It doesn’t have a microphone or is even connected in any way to a radio. It’s basically a big set of ear muffs (and no, it’s not connected to a throat mic). Also, he’s defusing bombs that could be set off by, well, radios. Most EOD techs won’t even wear radios while they are working on bombs.
36:26 Another scope view, but with no reticle pattern.
40:05 Scope view, no reticle pattern.
40:11 Sanborn waves at Iraqis with his left hand. This is a sign of disrespect in the Arab world, since the left hand is associated with dirtiness.
42:59 Sanborn punches James in the face. He would be court-martialed or at least receive an Article 15 for this. Or, maybe, James could react in some way, shape, or form?
43:30 A full-bird colonel is walking around Baghdad with his eye protection dangling off his body armor, instead of on his face. If anyone is going to be wearing eyepro (and setting an example for junior troops), it’s this guy.
43:45 A colonel praising a sergeant first class for being a “wild man” and operating like he did is highly unlikely. Instead, a colonel would probably be jumping on him for not only his insane behavior, but his out-of-regs appearance, to include sleeves, not wearing a helmet, and not having eye-pro.
44:55 As James smokes a cigarette on the forward operating base, “left, right, left, right” cadence can be heard in the background. Who the hell is calling marching cadence on a FOB in Iraq?
46:55 Oh, now there’s a colonel with rolled-up sleeves.
48:25 The team does a controlled detonation. James is exposed, as is Sanborn. None of them wear earplugs or even plug their ears with their fingers. James is actually wearing iPod headphones. Just to let you know: The big boom is freaking loud.
49:00 James drives away from the team. They aren’t on the FOB, so where the hell are their weapons?
49:45 The two soldiers discuss “accidentally” blowing up James as he goes close to the controlled det site and how all that would be left would be his helmet. Luckily, James isn’t wearing his helmet. Because really, why would he?
50:43 Again, you’re in the middle of Iraq, and rolling in just one Humvee.
51:20 They see armed men so they pull over and then Sanborn and James both get out from behind cover and start walking forward yelling for them to put their guns down. Wouldn’t you want them to do that part before you expose yourself?
55:48 The Brit contractor gets handed the Barrett to try and find the enemy sniper. On this ledge, with the kickback from the gun, he would be guaranteed to be pushed back and fall right on his back after firing.
57:54 The Brit gets shot while manning the Barrett. The enemy sniper uses a Dragunov, which has a maximum effective range of 800m. He’s shooting from more than 850 meters away (according to James, who calls the range later in this scene).
57:55 After the Brit is shot while manning the Barrett, Sanborn and James go up and get in the exact same spot. That seems like a bright idea. Further, why are two soldiers who would be unfamiliar with this weapon jumping on it, instead of another contractor?
58:15 How does an EOD guy just get up and get behind a complicated sniper rifle anyway? It’s not a video game.
1:01:00 An insurgent takes up a laying down on the side firing position with zero cover. LOL/WTF?
1:02:00 Sanborn hits this same insurgent after he starts running away. Not only does he hit a moving target, but he hits him in the head. At 850 meters. It’s quite obvious that Sanborn got his sniper training uploaded directly to his brain via The Matrix.
1:07:40 Eldridge takes out an enemy insurgent by firing half of his magazine in rapid succession. What happened to well-aimed shots?
1:08 The team gets drunk together in their room and fights each other. This is a big fraternization no-no? Also, U.S. troops are not allowed to drink or have alcohol in Iraq or Afghanistan, and one alcohol-related incident could mean an EOD tech loses their badge (and gets kicked completely out of the job).
1:14:37 The team stumbles around the FOB drunk. That’s not abnormal or anything, and an officer, senior enlisted leader, or even fellow soldiers wouldn’t find that weird or get them in trouble. Nothing to see here, move along.
1:16:50 The team heads outside the wire again. Why is Eldridge basically the only soldier ever wearing his eye protection?
1:17:00 An EOD team is clearing buildings now?
1:29:45 James asks a Pfc. about a merchant. The Pfc. addresses a Sgt. 1st Class as “man.”
1:31:33 James dons a hoodie, carries only a pistol, and hijacks the merchant’s truck, telling him to drive outside the base. This is quite possibly the biggest WTF of the entire movie. At this point, every soldier watching this movie is face-palming.
1:32:25 Did I mention that James has now jumped over an Iraqi compound wall, all alone in the middle of Baghdad? With just a pistol.
1:34:53 James starts running through a busy Iraqi neighborhood. He puts on his hoodie to be less conspicuous. As if his camouflage pants don’t give it away.
1:35:00 After a tense exchange at the front gate to the FOB, James is searched and then the soldiers guarding the gate just let him back in. He’s shown at his room a short time later, so I guess he’s not getting in trouble for going outside the wire without authorization.
1:41:00 The team decides to leave the blast site and go search for the bomber in the dark. They have night-vision goggle mounts on their helmets, but they don’t use NVG’s. Their natural night vision must be superhuman.
1:50:06 If the guy has a bomb on him, it would probably be a good idea for the seven soldiers standing out in the middle of the road to take cover behind something.
Military uniforms have been made from a variety of fabrics over the years: Cotton, wool, polyester blends… all have had their turn as what uniforms are made of. Now a new spin on one of the oldest fabrics could come into play.
That fabric, of course, is silk, which first entered the scene in China almost four millennia ago. Only this isn’t the silk that is used for the high-fashion dresses you see on the red carpet. That is from silkworms. According to a report from Marketplace.org, this silk is from spiders.
Okay, before you get carried away – no, this is not quite like the Spider-Man suits. The key, though is that the spider silk is strong. It has to be. Spider silk makes webs, which spiders usually use to catch food.
There’s just one problem. You need a lot of spiders to make silk, and spider’s just don’t get along with each other. We’re not talking things that can be worked out. Face it, when the critters you are counting on to produce material try to eat each other, productivity’s gonna be taking a nosedive. That doesn’t get the uniforms made.
So, the answer has been to genetically engineer silkworms to produce spider silk. This is not the only method in operation. Michigan State University researchers have figured out how to make a silk-like product from the deoxyribonucleic acid, or DNA, of spiders, and DNA sequencing is becoming much cheaper than it was in the past.
Either way, the material that is produced will have far more applications than the Kevlar used in the uniforms of present day. The spider silk could also be used to make protective underwear as well as improved body armor. That’s good news for the troops.
Swedish submarines have proven themselves in exercises against the U.S. One of their subs successfully lodged a kill against the USS Ronald Reagan as the carrier’s protectors stood idly by, incapable of detecting the silent and stealthy Swedish boat. Oddly, the Swedish forces succeeded while using an engine based on a 200-year-old design.
The USS Ronald Reagan was sailing with its task force for protection when a single Gotland-class submarine snuck up, simulated killing it, and sailed away without damage.
(U.S. Navy photo by Mass Communication Specialist 1st Class Peter Burghart)
First, a quick background on what engines were available to Sweden when it was looking to upgrade its submarine fleet in the 1980s. They weren’t on great terms with the U.S. and they were on worse terms with the Soviets, so getting one of those sweet nuclear submarines that France and England had was unlikely.
Nor was it necessarily the right option for Sweden. Their submarines largely work to protect their home shores. Nuclear boats can operate for weeks or months underwater, but they’re noisier than diesel subs running on battery power. Sweden needed to prioritize stealth over range.
But diesel subs, while they can run more quietly under the surface, have a severe range problem. Patrols entirely underwater are measured in days, and surfacing in the modern world was getting riskier by the day as satellites kept popping up in space, potentially allowing the U.S. and Soviet Union to spot diesel subs when they came up for air.
So, the Swedish government took a look at an engine originally patented in 1816 as the “Stirling Hot Air Engine.” Stirling engines, as simply as we can put it, rely on the changes in pressure of a fluid as it is heated and cooled to drive engine movement.
That probably sounded like gobbledygook, but the important aspects of a Stirling engine for submarine development are simple enough.
They can work with any fuel or heat source.
They generate very little vibration or noise.
They’re very efficient, achieving efficiency rates as high as 50 percent while gas and diesel engines are typically 30-45 percent efficient.
An officer from the HMS Gotland watches the crew of a U.S. patrol plane track his sub during war games near Sweden in 2017.
And it’s easy to see why the Swedes chose it once the technology was proven. Their Stirling engines are capable of air-independent propulsion, meaning the engines can run and charge the batteries while the sub is completely submerged. So, the boats have a underwater mission endurance measured in weeks instead of days.
But they’re still stealthy, much more quiet than nuclear subs, which must constantly pump coolant over their reactors to prevent meltdowns.
The HMS Gotland sails with other NATO ships during exercise Dynamic Mongoose off the coast of Norway in 2015.
(U.S. Navy photo by Mass Communication Specialist 2nd Class Amanda S. Kitchner)
So much more stealthy, in fact, that when a single Swedish Gotland-class submarine was tasked during war games to attack the USS Ronald Reagan, it was able to slip undetected past the passive sonars of the carriers, simulate firing its torpedoes, and then slip away.
So, for the U.S., getting a chance to test their mettle against them could save lives in a future war. And, if it saves a carrier, that alone would save thousands of lives and preserve tons of firepower.
For its part, Sweden is ordering two new submarines in their Type A26 program that will also feature Stirling engines, hopefully providing the stealth necessary to catch Russian subs next time their waters are violated. Surprisingly, these advanced subs are also cheap. The bill to develop and build two A26s and provide the midlife upgrades for two Gotland-Class submarines is less than id=”listicle-2589628522″ billion USD.