引用・参考文献 https://www.quora.com/Is-the-F-117-technically-a-fighter-or-an-attack-planehttps://www.quora.com/Why-was-the-F-117-designated-a-fighter-aircraft-when-it-is-in-fact-an-attack-aircraft-Why-was-its-numbering-so-far-out-of-sequence-with-other-prominent-fighters-of-the-day
http://www.nicovideo.jp/watch/sm46475192
