bn:00346807n
Noun Named Entity
Categories: Air-cooled aircraft piston engines, Inverted aircraft piston engines, Hirth aircraft engines, Aircraft piston engines 1930–1939
EN
Hirth HM 504  Hirth HM-504A-2  Hirth HM504 A2  Hirth HM 504 A2  Hirth HM 504A
EN
The Hirth HM 504 is a four-cylinder air-cooled inverted inline engine. Wikipedia
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EN
The Hirth HM 504 is a four-cylinder air-cooled inverted inline engine. Wikipedia