in hirise buildings are people and they all complaining of the quality of the planes but updrawd and more wind makes the planes unstable but the thikness should solf it..in a chamber with no wind a paper plane flights great
make and drawing on a piece of paper a4 or a5 sise get good think paper but not to thik cos you need to shape it
get the paper and volt it 1 time then open you get the line you bent in the paper
volt from the upper right to the line you made in the center and do it it at the left site to
now you made the begining of the nose folt again the same way you did above you get a start of the wings
bent the wings you made the same way as you folt the paper in the start
bent the wings again so the paper plane gets shape
good luck
Sell paper planes at high rise buildings for a good couse