This paper plane is, as the name states, insanely fast. At least, it is if you throw it right. It's made in almost the same way as my stunt plane, but don't be fooled, if you make it right, it'll only ever go straight. This project needs only one sheet of foolscap (A4) paper.
Step 1: Step 1, the base
The base for this plane is exactly the same as my stunt plane.
Step 1. Fold the top-left corner down, as if making a square.
Step 2. Do the same thing on the other top corner.
Step 3.Turn the paper over.
Step 4. Fold the paper horizontally so that the edge of the paper reaches the ends of the creases made in steps 1 & 2.
turn the paper over again and press the middle of the lines and then bring up the corners so it forms something resembling a triangle.
Note: If you're having trouble understanding this, try searching 'waterbomb base' on Google. This base is a bit like that, only it's not square.