It usually takes the Navy around five months to build even the smallest submarines to ferry Navy SEALs into and out of combat zones — but thanks to new technology, the Navy's most elite warfighters could slap together a submersible hull in just a few weeks.
That’s the promise behind the Optionally Manned Technology Demonstrator (OMTD), the U.S. military’s first 3D-printed submarine hull, unveiled by the Navy on July 24. Fabricated by the high-tech Big Area Additive Manufacturing 3D printing machine at the Oak Ridge National Laboratory, the 30-foot submersible hull was inspired by the SEAL Delivery Vehicles used by the branch and U.S. Special Operations Command to deploy Navy special warriors and their gear into particularly dangerous areas.
But while a traditional SEAL submarines cost up to $800,000 apiece and take three to five months to manufacture, six carbon-fiber composite sections of the OTMD took less than a month and only $60,000 to assemble, according to the Department of Energy — a shift that the Navy claims could massively reduce production costs.
The Department of Defense and global defense industry have put a premium on 3D printing (or “additive manufacturing,” if you want to be technical) for years, ranging from Army Armament Research, Development and Engineering Center’s fabricated “RAMBO” grenade launcher to portable printing units designed to help Marines repair essential gear faster downrange.
But the OTMD, apparently now the Navy’s largest 3D printed asset, represents a massive leap forward in terms of “on-demand” manufacturing. Rather than slap together expensive and time-consuming materiel requests during the long federal budgeting process, military personnel could simply fabricate vehicles and supplies on demand to adapt to changing operations. With U.S. special operations forces leading the charge in the Global War on Terror, assets like the OTMD could greatly increase their operational flexibility — and effectiveness.
According to the Navy, fleet-ready prototypes of the OTMD could hit the water as soon as 2019 — which, depending on who you ask, probably isn’t soon enough.
A U.S. Soldier assigned to 2nd Battalion, 198th Armored Regiment, 155th Brigade Combat Team, Mississippi Army National Guard, takes a moment to rest during Decisive Action Rotation 17-07 at the National Training Center in Fort Irwin, Calif., May 30, 2017. (U.S. Army photo)
(Reuters Health) - Voice analysis software can help detect post-traumatic stress disorder (PTSD) in veterans based on their speech, a study suggests.
Doctors have long understood that people with psychiatric disorders may speak differently than individuals who do not have mental health problems, researchers note in Depression and Anxiety. While some previous research points to the potential for distinct speech patterns among people with PTSD, it's been unclear whether depression that often accompanies PTSD might explain the unique voice characteristics.
In the current study, voice analysis software detected which veterans had PTSD and which ones did not with 89 percent accuracy.
Marine veteran Rep. Seth Moulton has officially jumped into the 2020 presidential race, promising to speak extensively about patriotism, service, and national security as part of his message.
Mouton, who deployed to Iraq four times, is currently a congressman from Massachusetts. He told ABC News' George Stephanopoulos on Monday that he has long valued service to the country.
"That's why I joined the Marines," Moulton told Stephanopoulos. "It's why I ran for Congress to try to prevent what I saw got us into Iraq from happening again, and it's why I'm running to take on the most divisive president in American history."