Throw it up high and time it as it comes back down! With a gentle breeze this plane can regularly reach flight times of 15-25 seconds! Sweet!
This was my favorite plane design as a kid; as an adult I'm still tempted to go out and play with this one. Maybe I will...
Step 1: The beginning
Start off with a single sheet of standard paper
- fold the top right corner over to the left side of the paper, as pictured
- unfold and do the same operation on the top left corner
- unfold and flip the paper over