Oak Ridge Today

Y-12 facilities could be crucial in plan to replace W78 warhead

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U.S. Air Force missile maintainers working on an intercontinental ballistic missile. (Source: U.S. Air Force photo by Airman 1st Class Braydon Williams/GAO-19-84)

U.S. Air Force missile maintainers working on an intercontinental ballistic missile. (Source: U.S. Air Force photo by Airman 1st Class Braydon Williams/GAO-19-84)

 

The National Nuclear Security Administration is preparing to restart a program to replace the W78 nuclear warhead, and new facilities at the Y-12 National Security Complex could be important to that project, a federal agency said Friday.

The W78 is one of two types of warheads on U.S. Air Force intercontinental ballistic missiles. The W87 is the other.

Critical components inside the W78 are aging, according to the U.S. Government Accountability Office, which published a report about the warhead replacement program on Friday. Also, the military’s requirements for, among other things, the safety and security features of the warhead have changed since it entered the stockpile in 1979, the GAO said.

Besides being used by the Air Force, the replacement W78 warhead could be used in ballistic missiles launched from Navy submarines, although further studies are required, the GAO said.

The two Y-12 facilities that could affect the warhead replacement program are the Uranium Processing Facility, which is now under construction, and the Lithium Production Facility, which could have a new building through a project that is still in the planning stages. [Read more…]

Y-12 to build replacement parts for nuclear warheads on submarine missiles

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A Trident II D5 missile test launch (Photo courtesy National Nuclear Security Administration)

A Trident II D5 missile test launch (Photo courtesy National Nuclear Security Administration)

 

The Y-12 National Security Complex in Oak Ridge has been approved to build parts for a system being replaced in the W88 nuclear warhead, which is deployed on submarine-launched missiles, according to the National Nuclear Security Administration.

The W88 has been a key part of the nation’s nuclear deterrent since it became part of the weapons stockpile in 1988, the NNSA said on its website Tuesday. But it needs maintenance.

The W88 Alteration (Alt) 370 program will replace the warhead’s Arming, Fuzing, and Firing, or AF&F, subsystem and address other aging issues to maintain its current state of readiness, the NNSA said.

Y-12 has been approved to build component parts for the W88 Alt 370 nearly two years ahead of schedule. [Read more…]

ORNL 3D-prints first submersible hull for U.S. Navy

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U.S. Energy Secretary Rick Perry takes a picture of the submersible hull 3D printed for the U.S. Navy at the Oak Ridge National Laboratory Manufacturing Demonstration Facility on Monday, May 22, 2017. (Photo by John Huotari/Oak Ridge Today)

U.S. Energy Secretary Rick Perry takes a picture of the submersible hull 3D-printed for the U.S. Navy at the Oak Ridge National Laboratory Manufacturing Demonstration Facility in Hardin Valley on Monday, May 22, 2017. (Photo by John Huotari/Oak Ridge Today)

 

The U.S. Navy teamed up with Oak Ridge National Laboratory to print the military’s first 3D-printed submersible hull in just four weeks. The parts were printed in just days, rather than weeks, and production costs were cut by 90 percent.

The hull was printed at ORNL’s Manufacturing Demonstration Facility in Hardin Valley through a partnership with the Navy’s Disruptive Technology Lab, according to a story published July 20 by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy. ORNL is a DOE laboratory.

“ORNL and the Navy saw this is as an opportunity to bring together their resources and expertise in a partnership with the potential to revolutionize manufacturing in the defense sector,” the DOE story said. “Not only can the Navy find new ways to reduce traditional costs associated with manufacturing, but the lessons learned from this project will help ORNL further explore 3D printing applications in the boating industry, aerospace, buildings, and anything that requires a large, resilient structure. Partnerships like these help drive economic growth and reinforce our national security.”

The team working on the 3D-printed submersible hull needed to create a 30-foot proof-of-concept hull out of carbon fiber composite material, DOE said. The prototype vessel is called the Optionally Manned Technology Demonstrator, and it could be used to deploy logistics capabilities and sensors. Future vessels will need to be manufactured faster and incorporate new designs to support Navy missions, DOE said. [Read more…]

NNSA achieves 50 percent production for W76-1 units

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Frank Klotz

Frank Klotz

WASHINGTON, D.C.—The National Nuclear Security Administration said last week that it had reached the halfway point in the production phase of the W76-1 warhead Life Extension Program, or LEP. An event held at the Pantex Plant in Amarillo, Texas, underscored NNSA’s commitment to meeting the U.S. Navy’s requirements for the W76-1.

Gen. Frank G. Klotz, U.S. Department of Energy under secretary for nuclear security and NNSA administrator, was on hand to personally thank the men and women of Pantex who helped achieve the production milestone.

“The W76-1 Life Extension Program is one of several steps we must take as a nation to ensure that America’s smaller nuclear arsenal remains safe, secure, and effective,” Klotz said. “The highly skilled Pantex team will continue to play an indispensable role in protecting the security of the United States, as well as our allies and partners, for many years to come. For that reason, it’s imperative that we continue to invest in the people and in the infrastructure needed to carry out that important, enduring task.” [Read more…]

Family identifies woman who died after falling into Civic Center fountain

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Oak Ridge Civic Center Fountain

Family members have identified an Oak Ridge woman who fell into the fountain at the Civic Center in June and died in the hospital 13 days later.

Family members have identified an Oak Ridge woman who fell into the fountain at the Civic Center in June and died in the hospital 13 days later.

Sarah Christine McAdams, 26, was found floating face down in the murky brown water, which is about 14” inches deep, on June 3. Two people reported the incident to the Civic Center staff, while a third tried to pull McAdams out of the water, city officials said.

Rescuers tried to resuscitate her immediately, and McAdams, who lived on Manhattan Avenue in the Woodland neighborhood, was rushed to Methodist Medical Center, city officials said at the time, without identifying the woman.

She died June 16, according to records provided by her mother, Lori Holt, of Murrell’s Inlet, S.C., which is south of Myrtle Beach. [Read more…]

NNSA: President’s budget request includes $326M for UPF at Y-12

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Uranium Processing Facility

The proposed Uranium Processing Facility at the Y-12 National Security Complex is pictured above. (Submitted image)

President Barack Obama’s budget request for the fiscal year that starts Oct. 1 includes $326 million for the Uranium Processing Facility project at the Y-12 National Security Complex, federal officials said this week.

The president’s proposed budget, which still has to be considered by Congress, was released last week. The National Nuclear Security Administration released details on Monday.

The NNSA has also posted highlights of the president’s budget request. [Read more…]