Paper aeroplanes

 

IMG_7073
1. Fold a piece of A4 paper lengthwise, push the fold so it makes a sharp crease, then unfold it … 

 

 

IMG_7074
2. Fold in flaps at 45º, but not quite to the centre line. 
IMG_7075
(Not quite to the centre line)
IMG_7077
3. Fold like this, holding the paper with a finger as you fold so it doesn’t bunch up in the middle.
IMG_7078
4. Fold 1cm of the tip down.
IMG_7079
– like that.
IMG_7080
5. Now fold the two halves up around the centre line.
IMG_7081
6. Fold one side down, along a line parallel with that first fold you did.
IMG_7082
7. – and then the other side.
IMG_7083
8. Fold the sides up … 
IMG_7084
9. … and stick a piece of tape along the join, to keep it together. Make sure the wings are slightly raised along their edges, for stability.
IMG_7087
10. Cut a slit 1cm ling, 2cm in from the edge of each wing at the back of the plane.
IMG_7088
11. Fold up and crease each of the flaps you have created, and angle them up slightly – this will push the nose up as the plane travels through the air.
IMG_7089
12. Hold it like this, aiming slightly downwards, and throw – not too hard.

 

IMG_7091
13. Experiment with different positions of the flaps. What happens if one flap is up and the other down?
IMG_7093
14. … or both flaps are down?
IMG_7095
We could make the same design in card instead, and then make a hole near the nose (this nose is unfolded), tape a small piece of kebab stick through to use as a launcher with a rubber band. Works well.
IMG_7096
This is what I’m working on at the moment: made of just two pieces of paper, some tape and a kebab stick.
IMG_7098
It has a real aerofoil and a tailplane. It’s unstable at the moment, but I’m working on it.