Using XFLR5 airfoil analysis software, [Think Flight] designed built a pair of flying wings to use these features. The first was successful in eliminating yaw wag, but exhibited some instability ...

The Pathfinder-Plus is a high-lift, low-speed airfoil ... flying model of a pterodactyl (a flying dinosaur), which later appeared in the IMAX movie On the Wing. MacCready designed Pathfinder ...