🌐EnglishEnglishEspañolPortuguês日本語EntityQ4828506· pop 5· linked from 54 articlesAvia M 337inverted six-cylinder air-cooled inline engineConnectionsaircraft engineEntityCzechoslovakiaEntityCategories1960s aircraft piston enginesAircraft air-cooled inline piston enginesInverted aircraft piston enginesLOM Praha aircraft enginesStraight-six enginesWalter aircraft engines