The Northrop Grumman B-2 Spirit, also known as the Stealth Bomber, is an American heavy strategic bomber, featuring low-observable stealth technology designed to penetrate dense anti-aircraft defenses. A subsonic flying wing with a crew of two, the plane was designed by Northrop (later Northrop Grumman) and produced from 1987 to 2000. The B-2 is the only acknowledged in-service aircraft that can carry large air-to-surface standoff weapons in a stealth configuration. As of 2015, twenty B-2s were in service with the United States Air Force, one having been destroyed in a 2008 crash. The Air Force plans to operate them until 2032, when the Northrop Grumman B-21 Raider is to replace them. **Render:**