Flight

Plane type	How does it behave?	Time ( secs)
Paper sheet, drop	Doesn't fly, just dropped on the ground	2s 38
Paper with fold down middle, drop	It stayed in the air longer	2s 39
Paper with fold and 1 paper clip, drop	It didn't really stay in the air longer	1s 84
Fold, 2 clips, rudder, drop	It didn't really stay in the air longer	1s 47
Fold, 2 clips, rudder throw	It flew everywhere and longer in the air - 2s 03

Finding: I found out that paper with fold down middle, stayed in the air longer than fold, 2 clips, rubber throw. 

Paper with fold down middle was 2s 39.  Fold, 2 clips, rubber throw was 2s 03.