arturo valdenegro got to help with the launch of a giant paper plane, with his name on it! so, i was inspired to try my own hand at airplane construction. so, how do we get started? >> well, you need to pick a pattern so we know which plane we're gonna make. >> is this one easy? >> yes. >> good. >> so, the first step is to fold the whole thing in half, lengthwise, so you know where the center line is. >> following the expert's advice -- and the numbered lines -- i aim for good, sharp creases and perfect symmetry. it's as easy as 1-2-3. plus, 4-5-6... >> and then number 7 are these little winglets. just fold up on the edge. >> perfect. one and... two! >> and then to make it more stable when we fly it, you want to unfold it a little bit so that it has this look. you ready to fly? >> beautiful. absolutely. let's go! >> so, we're going to come over here to our start line, so you can fly your plane. >> all right. since there are no motors, i guess you could say that paper airplanes fly on a wing and a prayer. i'm praying that mine works. here goes! >> good job! >> yay! if you wa