A sounding rocket flight test is giving engineers at Sandia National Laboratories real-world reentry vibration data they can use to improve modeling and help drive nonnuclear component designs for the United States’ first new nuclear weapon under development in nearly 30 years. “The Atrax sounding rocket flight test is helping us improve credibility and confidence in our modeling and simulation tools in preparation for the W93 warhead,” said Ross Wagnild, an aerospace engineer at Sandia. “Getting confidence in our toolset earlier allows more time to inform the design of components.” https://newsreleases.sandia.gov/atrax_test/