For all the chaps who think the weight is unchanged.....
If all the geese flew to the front of the aircraft, would the pilot have to re-trim due to change in CG?
I think not.
The geese are flying, and are supported in the air due to pressure differentials generated in by their wings. They are not displacing their own weight in air, as would be the case if they were floating.
Pressure exerts the same force in all directions, not just down. Therefore the geese's mass is no longer acting in a 1g downward force, therefore 'weight' of the aircraft + contents has decreased.
In theory, the aircraft would then start to increase altitude...not sure what the CAA would make of the Pilot's excuse of a level bust due to pax!
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