How to make The Champ (paper airplane)

The Champ is the current holder in the Guinness Book of World Records for the longest flight for a paper airplane, (27.6 seconds)  It was designed by Ken Blackburn.  All you will need to make one is a sheet of paper 81/2" X 11", a ruler, and a pencil or something with which to make a mark.  It is a little difficult to fold.  It would probably appear in the advanced section of a book of paper airplanes.  So be patient if it does not all go perfectly well on the first attempt.

Step 1

Make a mark 2" from each side at the top of the paper, then make two more marks 1/2" above the bottom edge of the paper on each side. 
Make valley folds as shown.