Start with a standard rectangular sheet of paper
Place the paper vertically on a flat surface
Fold it in half lengthwise
Crease the fold sharply
Unfold the paper
Fold the top two corners inward to the center line
Make both edges align evenly with the center fold
Fold the new top edges inward again to the center line
Keep both sides symmetrical
Fold the plane in half along the center line
Make the outside edges line up exactly
Fold each wing down from the top edge
Keep the wings even on both sides
Leave a small, consistent body thickness
Sharpen all creases firmly
Adjust the wings so they are level
Bend the back edges slightly upward if needed
Make sure both wings match in shape and angle
Hold the plane at the center of the body
Throw it straight and smoothly with a gentle motion