Waco 10
The Waco 10 is a three-seat, open-cockpit biplane introduced in 1927 by the Advance Aircraft Company of Troy, Ohio, which renamed itself the Waco Aircraft Company during the type's production run. A refinement of the Waco 9 built around the plentiful war-surplus Curtiss OX-5, it became the firm's most widely produced design, sold in many engine variants under designations such as GXE, ASO and CTO. Vintage Aviation News counts 1,200 built by 1930 and more than 1,600 of the wider series by 1933. Operators used it for barnstorming, charter flying and instruction, and many examples survive in museums and private hands.