The Bowlus/Nelson BB-1 Dragonfly is an American, two seat, strut-braced, high-wing motor glider that was developed from the Bowlus BA-100 Baby Albatross glider by Hawley Bowlus.

The Nelson Aircraft Corporation was founded in 1945 by sailplane pilot Ted Nelson and sailplane designer William Hawley Bowlus in San Fernando, California.