成せい層そう圏けん飛ひ行こう機きMeaningsNoun1. stratoplane (hypothetical type of airplane) (Historical)Kanji used成become層layer圏area of influence飛fly行go機machineComposed of成せい層そう圏けんstratosphereNoun飛ひ行こう機きairplane; aeroplane; plane; aircraftNoun