Bing でこれらの結果が見つかりました
Northrop Grumman B-2 Spirit - Wikipedia
ウェブ2 日前 · 1987–2000. Number built. 21 [1] [2] 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 …