The Hiller VXT-8 Coleopter was a proposed annular wing VTOL aircraft designed in the United States in the late 1950s, inspired by the French SNECMA Coléoptère.
The Hiller VXT-8 Coleopter was a proposed circular-wing VTOL aircraft designed in the United States during the late 1950s, influenced by the French SNECMA Coléoptère.