Now if Karl WOULD bring a hawk on the flight to Chicago and if the hawk
WOULD decide to spend time flying up and down the aisle - would the ac
then consume less fuel due to the reduced weight?
My answer is of course NO since the fuselage is a closed and static
system (although there is obviously an air exchange) and as such the
total mass would not change. Any other opinions?

Herb, J7

ContestID67 wrote:
I don't believe that Karl is bringing along a feathered friend. He's
flying into ORD and I don't think that the airlines would allow that
kind of carry on baggage. I could be wrong but I doubt it.

- John