Today I did a task named Build A Plane-Kick Start, and to be honest it was very difficult, the image on your left was my first cardboard model and the image shown on your right was my second cardboard model, I found trying to apply parts and holding the base still a bit difficult but I tried my best and I hope you guys like them.
Have you ever made a plane out of cardboard? Its quite tricky to get it to stay in the air.