This instructable gives you detailed instructions as to the creation of the WORLDS BEST PAPER AIRPLANE
Step 1: The basic start
First, you fold a peice of 8.5X11 paper in half, crease it, and reopen it.
Then, you flip it over so that the fold is mountain (/\) side up.
Next you fold the top corners (at 45 degree angles) towards the /\ crease.