The National Nuclear Security Administration said Tuesday it completed the first production unitof a refurbished submarine-launched nuclear warhead, setting the stage for a mass-productionrun that could begin early next year and which will fit the weapon with a new detonationsystem rated for 30 more years at sea.Workers at the Pantex Plant in Amarillo, Texas, finished the proof-of-concept article for the W88Alt-370 on July 1, the National Nuclear Security Administration (NNSA) wrote in a pressrelease. Los Alamos is the design agent for the refurb. Early work began in 2012 andproduction is scheduled to run through fiscal year 2026, according to NNSA’s 2021 StockpileStewardship and Management Plan.
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