A nice speedy flier like the Avio
Step 1: First Folds First
Get a sheet of paper, fold it in half lengthwise and then widthways. Fold a diagonal from the bottom left corner to the top right corner. Unfold the widthways half and repeat on other side.
Step 2: Next...
Fold the half open, and fold to the sides the tabs that cross the centre crease. Fold the tip down to the bottom of the flap.
Step 3: Almost Done...
Fold backwards down the widthways crease and then up again 4 cm down. Fold the diagonal edges to the centre crease and pull the corner outwards, to make a decrease in wing sweep half way along the LE.
Step 4: Fineshed!
Fold the flaps under themselves, refining the aerofoil, and then fold the wings.