Yes, you have to have air flowing through it. It is an inflatable wing, and yes, if you try hard
enough you can collapse it and if you're close enough to the ground, crash before it re-inflates.
But having said that, if you try hard enough, you can crash any flying machine.
I did have another ultralight, a Cosmos Phase II with a 12.1 wing that I logged over 440 hours in.
I sold it because I have this hang up about the FAA saying thay yesterday I could fly my plane, safely,
under FAR 103. Only to wake up one morning to find that because it was capabale of carrying 2 people,
instead of only 1, it was now a light sport plane, had to be N numbered and I had to be FAA licensed. Grrrrr.
So I sole it and will now be flying again unfer 103 regulations.
My old plane
Before flight
During flight
After flight...