The Denney Kitfox is a series of small side-by-side, two-seat, high-wing, single engine kit aircraft, designed and originally manufactured by Dan Denney and his company Denney Aerocraft of Boise, Idaho. The aircraft is amateur-built and not type-certified. Over 4500 kits have been delivered in 42 different countries.

The Avid Flyer is a family of American single engine, high-wing, strut-braced, conventional landing gear-equipped, two seat light aircraft designed for kit construction in the 1980s. Its several variants sold in large numbers. In 1987 a Flyer became the first ultralight to land at the North Pole.