"My research shows that planes fly based on the same principles as how birds fly; by pushing air downwards."
- Actually, more of the lift is from PULLING air downwards rather than pushing it downwards. Most of the lift comes from the air being pulled down by the top of the wing. Lose that, and even though you are still pushing down a good bit of air, your plane is stalled. But you already knew that, I guess you're just hoping a bunch of illiterate jury selectees won't.
https://www.youtube.com/watch?v=6UlsArvbTeo

The money shot comes at around 30 seconds.