No action or reaction on the air? that's novel, so what's supporting the balloon? When you lie in a swimming pool doing starfish impressions, is there no hydrostatic force acting on your lower body to counteract the weight?
Dragchute, if my analogy ignores Archimedes, so does the asertion that the force from the geeses wings will apply itself to the a/c floor. Any rise in air pressure would vent through the open window.
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Another day in paradise