A pair of B-2 stealth bombers from the 509th Bomber Wing at Whiteman Air Force Base dropped inert B61-7 and B61-11 nuclear bombs at the Tonopah Test Range in Nevada recently.
By Dave Bezaire & Susi Havens-Bezaire (Flickr: B61 Nuclear bomb) [CC BY-SA 2.0], via Wikimedia Commons
A statement from the National Nuclear Security Administration said the tests were carried out to obtain reliability, accuracy, and performance data under operationally representative conditions.