In article ,
brian whatcott wrote:

Alan Baker wrote:


Interesting comment: what would YOU call it when the fabric on the upper
wing surface wants to pull away from the ribs?

Air pressure from inside the wing pushing up on it more than the air
above is pushing down...

For a couple of seconds, perhaps.

Wings aren't typically hermetically sealed.

Let me take a wild guess he you did physics for an uundergraduate
degree. Is that right?

Brian W