all you will need is:
1 sheet of standard A4 paper
a pen (optional)
Step 2: Then crease this fold and unfold it.
Step 4: Repeat this, valley folding the top edge down so that it meets the opposite side then unfold again.
The folds should now resemble a diagonal cross.
Flip the page over for the next step...
Step 6: Then unfold .
It should look like the second photo then.
Now, once again flip the page over for the next step
Step 8: pull the two edges of the raised fold together and flat against the lower part of the paper and flatten the top part of the fold down on top (the folds should easily come together).
it should appear to now have two layers ( like the photos).
Step 10: repeat with the right side.
these folds will resemble a diamond shape
step 12: now, you will need to fold the top left diagonal edge of the bottom layer along the middle of the plane.
step 13: then, fold the half of the diamond back down on top of the last fold.
step 14: repeat these steps with the other side.
the edges of the diamond should be in line with the edge of the wings
step 15: Repeat step 11 and fold the left halve of the diamond onto the right side.
make a mark with a pen 6 centimeters from the nose of the plane.
now make a line with a ruler from this point to the bottom left wing tip (look at the photo) and make a valley fold along that line
step 16: like step 13, fold the halve of the diamond back onto the bottom layer of the plane.
Step 17: repeat on the right side
Step 18: the diamond will be visible once again
Step 21: there should be two small triangle shapes pointing towards the middle of the plane
flatten these so that the side edges (the edges of the triangle furthest from the sides of the plane) are parallel with each other refer to the last photo
Step 23: make a fuselage of around 2 centimeters and fold the wings
now you need to test the plane and tweak it.
if the plane dives, gently bend the back edge of the wing upwards or down if it quickly rises and stalls.
if it turns steeply one way, gently bend the back edge of the fuselage (the bit you hold) in the opposite direction