Verner Powered Hatz Biplane Mark Taylor interview with Dewey Davenport: Custom features with the 9 cylinder radial engine – 2022 Oshkosh (external YouTube link)
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Verner Powered Hatz Biplane Mark Taylor interview with Dewey Davenport: Custom features with the 9 cylinder radial engine – 2022 Oshkosh (external YouTube link)
