The Northrop Grumman B-21 Raider is the first new US strategic long-range bomber in more than 30 years. Image courtesy USAF Other American Bombers The Boeing B-52 Stratofortress is the American long-range, subsonic, strategic bomber operated by the USAF since the 1950s. Image courtesy USAF Staff Sgt Bennie J Davis III B-2 ‘Spirit’ is a subsonic, two-crew, heavy strategic bomber, …