. >> the winner is arturo valdenegro.ase come up here. [ applause ] >> well, arturo valdenegro won our fly-off in january of 2012, and so he became our guest engineer, and he was able to name the plane. he named it arturo's desert eagle. >> a team of professional engineers took arturo's concept and created a 15-foot test model. >> hey, arturo? >> oh, hey. >> so, are you excited? >> yeah. >> you want to see it? >> yeah. >> we'll pull it out. >> the model was going to be tested over the desert. leading the team is art thompson. he explained that how the desert eagle was lifted was crucial. >> this is for picking it up with the helicopter. and so this is about where the center of gravity is. >> the model was carefully carried aloft. when it reached the right height, it was time to set it free. >> now. >> "drop, drop, drop." >> ooh! >> and drop it did. the small parachute attached to the back was supposed to help stabilize the paper plane, but it actually made the plane less stable. >> back to the hangar! >> [ laughs ] >> so,